{"id":7519,"date":"2026-01-28T17:49:30","date_gmt":"2026-01-28T16:49:30","guid":{"rendered":"https:\/\/q3-energie.de\/pv-connection-technology-products-firefighter-switches-generator-junction-boxes-ac-dc-boxes\/qfire-big-firefighter-switch\/"},"modified":"2026-07-20T17:58:02","modified_gmt":"2026-07-20T15:58:02","slug":"qfire-big-pv-firefighter-safety-switch","status":"publish","type":"page","link":"https:\/\/q3-energie.de\/en\/products\/qfire-big-pv-firefighter-safety-switch\/","title":{"rendered":"QFire BIG Firefighter Switch"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull\" style=\"min-height:603px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"600\" class=\"wp-block-cover__image-background wp-image-551 size-full\" alt=\"\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Pillar_Page_Header_Feuerwehrschalter-e1777288994973.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Pillar_Page_Header_Feuerwehrschalter-e1777288994973.webp 1920w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Pillar_Page_Header_Feuerwehrschalter-e1777288994973-300x94.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Pillar_Page_Header_Feuerwehrschalter-e1777288994973-1024x320.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Pillar_Page_Header_Feuerwehrschalter-e1777288994973-768x240.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Pillar_Page_Header_Feuerwehrschalter-e1777288994973-1536x480.webp 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-70 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div class=\"wp-block-columns alignfull are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-5b0bc1de wp-block-columns-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50);flex-basis:65%\">\n<h1 class=\"wp-block-heading has-text-align-left has-nv-text-dark-bg-color has-text-color has-large-font-size\" id=\"feuerwehrschalter-q-fire-big-fur-grosse-pv-anlagen\">QFire BIG PV Firefighter Safety Switch for Large PV Systems<\/h1>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-align-left has-nv-text-dark-bg-color has-text-color wp-block-paragraph\" id=\"generatornahe-abschaltung-mehrerer-pv-strings-projektspezifisch-geplant-galvanisch-getrennt-nach-iec-60947-3\" style=\"font-size:18px\"><strong>Generator-side disconnection of multiple PV strings \u2013 project-specifically planned, with galvanic isolation according to IEC 60947-3.<\/strong><\/p>\n\n\n\n<div style=\"height:9px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons has-custom-font-size has-x-large-font-size is-horizontal is-layout-flex wp-block-buttons-is-layout-flex\" style=\"padding-top:0;padding-bottom:0\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50 is-style-primary animated fadeInLeft\"><a class=\"wp-block-button__link has-border-color has-nv-site-bg-border-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"#modular\" style=\"border-width:2px;border-top-left-radius:4px;border-top-right-radius:4px;border-bottom-left-radius:4px;border-bottom-right-radius:4px;padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--20)\">Modular System Design \u2192<\/a><\/div>\n\n\n\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50 is-style-secondary animated fadeInLeft delay-100ms\"><a class=\"wp-block-button__link has-border-color has-nv-site-bg-border-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"#steuerbox\" style=\"border-width:2px;border-top-left-radius:4px;border-top-right-radius:4px;border-bottom-left-radius:4px;border-bottom-right-radius:4px;padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--20)\">QFire BIG Control Box for Large PV Systems \u2192<\/a><\/div>\n\n\n\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50 is-style-secondary animated fadeInLeft delay-200ms\"><a class=\"wp-block-button__link has-border-color has-nv-site-bg-border-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"#schaltbox\" style=\"border-width:2px;border-top-left-radius:4px;border-top-right-radius:4px;border-bottom-left-radius:4px;border-bottom-right-radius:4px;padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--20)\">QFire BIG Switch Box DC Disconnection \u2192<\/a><\/div>\n\n\n\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50 is-style-primary animated fadeInLeft delay-500ms\"><a class=\"wp-block-button__link has-border-color has-nv-site-bg-border-color has-medium-font-size has-custom-font-size wp-element-button\" href=\"#spezifisch\" style=\"border-width:2px;border-top-left-radius:4px;border-top-right-radius:4px;border-bottom-left-radius:4px;border-bottom-right-radius:4px;padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--20)\">QFire Project-Specific Instead of Standard Solution \u2192<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-24-Strings-und-Ueberspannungsschutz-400px.webp\" alt=\"QFire BIG PV Firefighter Safety Switch Box with 24 Strings and Surge Protection\" class=\"wp-image-1691\" style=\"width:400px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-24-Strings-und-Ueberspannungsschutz-400px.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-24-Strings-und-Ueberspannungsschutz-400px-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-24-Strings-und-Ueberspannungsschutz-400px-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n<\/div><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-rank-math-toc-block q3-toc has-neve-link-color-color has-text-color has-link-color wp-elements-24695953e6b1fd19b917685029d44f2b\" id=\"rank-math-toc\"><h2>On this page<\/h2><nav><ul><li class=\"\"><a href=\"#feuerwehrschalter-q-fire-big-in-der-anlagenplanung\">QFire BIG in System Planning<\/a><\/li><li class=\"\"><a href=\"#dc-und-ac-abschaltung-im-anlagenkonzept-kombinieren\">Combining DC and AC Shutdown in the System Concept<\/a><\/li><li class=\"\"><a href=\"#modular\">Modular System Design for Large PV Systems<\/a><\/li><li class=\"\"><a href=\"#galvanische-trennung-der-dc-strings-beim-feuerwehrschalter-q-fire-big\">Galvanic Isolation According to IEC 60947-3<\/a><\/li><li class=\"\"><a href=\"#steuerbox\">Control Box, Switch Boxes and Accessories<\/a><\/li><li class=\"\"><a href=\"#feuerwehrschalter-q-fire-big-cluster-technik-fur-grosse-pv-anlagen\">QFire Cluster Technology for Multiple Roof Areas<\/a><\/li><li class=\"\"><a href=\"#auslosearten-und-schnittstellen\">Triggering Methods and Interfaces<\/a><\/li><li class=\"\"><a href=\"#spezifisch\">Project-Specific QFire BIG Solution<\/a><\/li><li class=\"\"><a href=\"#projekt\">Project Inquiry Firefighter Switch<\/a><\/li><li class=\"\"><a href=\"#technische-unterlagen-feuerwehrschalter\">Technical Documents and Downloads<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 id=\"stringbasierte-dc-fernabschaltung-fur-grosse-pv-anlagen\" class=\"wp-block-heading\">String-Level Remote DC Disconnection for Large PV Systems<\/h2>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\">\n<p class=\"wp-block-paragraph\"><strong>QFire BIG is a string-based, remotely controllable DC disconnection solution for commercial and industrial PV systems designed in accordance with IEC requirements.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The system is designed for rooftop PV systems, industrial buildings, logistics roofs and complex photovoltaic installations where multiple PV strings, long DC cable routes or several PV generator fields need to be shut down safely.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The QFire BIG switch boxes are installed close to the PV generator and galvanically isolate the connected PV strings in accordance with IEC 60947-3. Depending on the project, up to 24 PV strings can be handled in a single switch box. The system is configured to suit the specific installation \u2013 taking into account the number of strings, system voltage, string current, roof structure, cable routing and the required shutdown concept.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In addition, QFire BIG can be integrated into an AC-side shutdown concept on a project-specific basis. Via the status contact of the QFire control box, external components such as grid and system protection, inverter enable signals or on-site contactor control systems can be triggered. This allows DC-side PV generator disconnection and AC-side shutdown logic to be planned together for large PV systems.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">QFire BIG is not a module optimiser and not a conventional module-level rapid shutdown solution. Its focus is not on power optimisation at individual module level, but on safe DC string shutdown and PV generator disconnection for professional PV systems \u2013 for example in the event of fire, during maintenance work or for service operations.<br><br>Thanks to its central control box, project-specific DC switch boxes, optional cluster solution and external emergency-stop connection, QFire BIG can be flexibly integrated into a wide range of system concepts. The system is particularly suitable for:<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:30%\">\n<h3 class=\"wp-block-heading has-text-align-center\">QFire BIG At A Glance<\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes ref-project-card\"><table><tbody><tr><td><strong>Application<\/strong><\/td><td>Project-specific connection boxes<\/td><\/tr><tr><td><strong>Function<\/strong><\/td><td>DC string shutdown \/ PV generator disconnection<\/td><\/tr><tr><td><strong>Isolation<\/strong><\/td><td>Galvanic isolation according to IEC 60947-3<\/td><\/tr><tr><td><strong>System Voltage<\/strong><\/td><td>Up to 1,500 V DC<\/td><\/tr><tr><td><strong><strong>String Current<\/strong><\/strong><\/td><td>Up to 20 A Isc per string<\/td><\/tr><tr><td><strong>Number of Strings<\/strong><\/td><td><br>Up to 24 PV strings per switch box<\/td><\/tr><tr><td><strong><strong>Extensions<\/strong><\/strong><\/td><td>Emergency stop, key switch, fire alarm system, status contact, SPD, fuses, cluster solution, integration into AC-side shutdown concepts<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide are-vertically-aligned-top has-neve-link-color-color has-text-color has-link-color wp-elements-0c3bc985deaa58c78e297ea26ab2c7b3 is-layout-flex wp-container-core-columns-is-layout-0fb72d45 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-top dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20);flex-basis:33.34%\">\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-26de122b wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-e148e5c0 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-e5099da3\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M1783.877,760.195L1448.221,519.4c0.936-5.06,1.49-10.252,1.49-15.58V88.032 c0-47.163-38.371-85.533-85.533-85.533h-124.246c-47.162,0-85.533,38.37-85.533,85.533v220.587L918.581,139.452 c-4.537-3.26-9.654-5.051-14.847-5.618c-1.234-0.156-2.483-0.246-3.732-0.255c-1.249,0.009-2.497,0.099-3.732,0.255 c-5.188,0.567-10.309,2.358-14.846,5.618l-865.3,620.743c-14.143,10.142-17.383,29.829-7.236,43.971 c6.155,8.581,15.822,13.149,25.63,13.149c6.361,0,12.78-1.921,18.341-5.913L900.002,203.69l254.396,182.496l63.024,45.211 l132.331,94.932l64.783,46.473l332.604,238.601c5.562,3.991,11.979,5.913,18.341,5.913c9.809,0,19.476-4.568,25.631-13.149 C1801.26,790.027,1798.02,770.337,1783.877,760.195z M1217.423,353.834V88.032c0-12.411,10.099-22.509,22.509-22.509h124.246 c12.41,0,22.509,10.098,22.509,22.509v387.226L1217.423,353.834z\"><\/path><path d=\"M1534.746,800.935c-17.404,0-31.512,14.107-31.512,31.512v894.17c0,1.895-6.37,7.86-17.418,7.86h-353.228 v-548.772c0-17.404-14.107-31.512-31.513-31.512H698.928c-17.404,0-31.512,14.107-31.512,31.512v548.772H314.188 c-11.048,0-17.418-5.966-17.418-7.86v-894.17c0-17.405-14.107-31.512-31.512-31.512c-17.404,0-31.512,14.107-31.512,31.512v894.17 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Roofs<\/strong><\/strong><\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20);flex-basis:33.34%\">\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-26de122b wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-e148e5c0 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-4d68249d\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M1794.799,86.801c0-45.832-38.102-83.119-84.936-83.119H901.35h-3.8H93.755 c-45.832,0-83.119,38.102-83.119,84.94v812.311c0,1.243,0.092,2.47,0.231,3.678c-0.14,1.208-0.231,2.424-0.231,3.677v807.594 c0,45.832,38.101,83.119,84.936,83.119h808.513h3.8h803.795c45.831,0,83.119-38.102,83.119-84.94V901.747 c0-1.243-0.093-2.469-0.232-3.677c0.14-1.208,0.232-2.428,0.232-3.675V86.801z M1732.043,86.801v776.217h-243.219 c33.027-37.121,52.45-85.802,52.45-137.973c0-41.45-12.262-80.067-33.282-112.504c-36.425-59.971-102.365-100.121-177.514-100.121 c-114.426,0-207.517,93.091-207.517,207.517c0.005,41.893,12.554,81.503,34.587,114.715c6.236,10.024,13.272,19.537,21.129,28.366 H932.727V524.099c0-10.37-5.047-19.532-12.799-25.249c-5.691-5.796-13.609-9.398-22.378-9.398h-9.739 c-13.483,0-25.455,8.61-29.745,21.393c-19.808,59.008-74.951,98.65-137.22,98.65c-23.59,0-45.862-5.708-65.561-15.764 c-43.652-24.956-73.156-71.948-73.156-125.733c0-79.827,64.939-144.771,144.763-144.771c22.955,0,44.921,5.427,64.527,15.189 c30.695,17.146,54.906,45.228,66.646,80.208c2.933,8.746,9.508,15.457,17.659,18.871c5.182,3.673,11.468,5.787,18.131,5.787h7.494 c17.33,0,31.377-14.042,31.377-31.377V66.437h777.137C1722.093,66.437,1732.043,75.573,1732.043,86.801z M73.392,88.622 c0-12.23,9.136-22.185,20.364-22.185h772.417v247.737c-13.447-12.178-28.418-22.575-44.58-30.861 c-30.126-16.726-64.584-26.107-100.747-26.107c-114.426,0-207.517,93.095-207.517,207.525c0,80.024,45.557,149.56,112.072,184.172 c30.029,16.915,64.641,26.61,101.491,26.61c52.805,0,101.994-19.926,139.281-53.694v247.732h-338.39 c-17.33,0-31.377,14.048-31.377,31.38v9.735c0,7.117,2.447,13.771,6.588,19.139c3.633,7.257,10.016,13.019,18.07,15.715 c31.597,10.61,57.555,31.412,74.938,57.948c13.067,21.914,20.447,47.364,20.447,74.163c0,79.827-64.939,144.762-144.762,144.762 c-50.271,0-94.618-25.766-120.581-64.769c-13.273-21.861-20.92-47.495-20.92-74.881c-0.004-62.264,39.646-117.412,98.659-137.224 c12.782-4.29,21.392-16.258,21.392-29.74v-7.494c0-5.953-1.685-11.489-4.557-16.229c-3.83-13.005-15.842-22.505-30.086-22.505 H73.392V88.622z M73.392,1715.881V939.665h243.219c-33.028,37.12-52.45,85.797-52.45,137.968c0,41.454,12.266,80.072,33.286,112.51 c36.42,59.97,102.362,100.119,177.51,100.119c114.426,0,207.517-93.09,207.517-207.517c-0.005-41.892-12.56-81.508-34.587-114.724 c-6.238-10.024-13.272-19.532-21.125-28.356h245.946v338.919c0,10.374,5.051,19.54,12.804,25.248 c5.69,5.796,13.609,9.395,22.373,9.395h9.74c13.482,0,25.455-8.606,29.744-21.388c19.809-59.008,74.951-98.65,137.22-98.65 c23.577,0,45.836,5.699,65.53,15.741c43.67,24.951,73.187,71.956,73.187,125.756c0,79.817-64.938,144.762-144.762,144.762 c-22.96,0-44.931-5.42-64.536-15.19c-30.69-17.142-54.894-45.228-66.639-80.203c-2.938-8.746-9.512-15.461-17.671-18.876 c-5.18-3.668-11.461-5.778-18.118-5.778h-7.495c-17.33,0-31.377,14.044-31.377,31.378v345.468H95.572 C83.341,1736.245,73.392,1727.104,73.392,1715.881z M1732.043,1714.06c0,12.231-9.135,22.186-20.363,22.186H939.263v-247.737 c13.443,12.17,28.414,22.57,44.571,30.852c30.125,16.731,64.589,26.117,100.755,26.117c114.427,0,207.518-93.1,207.518-207.526 c0-80.037-45.569-149.586-112.098-184.185c-30.024-16.906-64.624-26.598-101.465-26.598c-52.805,0-101.999,19.926-139.281,53.693 V933.124h338.39c17.33,0,31.377-14.043,31.377-31.377v-9.738c0-7.113-2.447-13.767-6.593-19.133 c-3.628-7.258-10.015-13.019-18.065-15.72c-31.597-10.607-57.559-31.408-74.938-57.949c-13.066-21.909-20.446-47.364-20.446-74.163 c0-79.823,64.938-144.762,144.762-144.762c50.266,0,94.618,25.761,120.581,64.764c13.268,21.861,20.919,47.5,20.919,74.889 c0.005,62.265-39.646,117.408-98.658,137.22c-12.782,4.29-21.393,16.262-21.393,29.745v7.494c0,5.952,1.686,11.484,4.557,16.23 c3.83,13,15.838,22.499,30.087,22.499h342.201V1714.06z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"mehrere-dachbereiche\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-952e09211bf3b676609dd918583f5bad\" style=\"font-size:16px\"><strong><strong>Multiple Roof Areas<\/strong><\/strong><\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20);flex-basis:33.33%\">\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-26de122b wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-e148e5c0 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-8ab583dc\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M1468.436,32.467v188.211c-98.748,15.249-174.595,100.822-174.595,203.777s75.847,188.521,174.595,203.777 v1139.302c0,17.453,14.146,31.608,31.607,31.608c17.454,0,31.609-14.155,31.609-31.608V628.232 c98.748-15.257,174.59-100.822,174.59-203.777s-75.842-188.529-174.59-203.777V32.467c0-17.454-14.155-31.608-31.609-31.608 C1482.581,0.858,1468.436,15.013,1468.436,32.467z M1643.029,424.455c0,67.979-47.703,124.986-111.377,139.423 c-10.179,2.302-20.744,3.563-31.609,3.563s-21.43-1.261-31.607-3.563c-63.684-14.438-111.378-71.444-111.378-139.423 c0-67.988,47.694-124.995,111.378-139.424c10.178-2.311,20.742-3.563,31.607-3.563s21.431,1.252,31.609,3.563 C1595.326,299.46,1643.029,356.467,1643.029,424.455z\"><\/path><path d=\"M331.574,1767.534V628.232c98.758-15.257,174.603-100.822,174.603-203.777s-75.845-188.529-174.603-203.777 V32.467c0-17.454-14.146-31.608-31.608-31.608c-17.454,0-31.608,14.155-31.608,31.608v188.211 C169.609,235.926,93.763,321.5,93.763,424.455s75.846,188.521,174.594,203.777v1139.302c0,17.453,14.155,31.608,31.608,31.608 C317.428,1799.143,331.574,1784.987,331.574,1767.534z M156.98,424.455c0-67.988,47.703-124.995,111.377-139.424 c10.178-2.311,20.752-3.563,31.608-3.563c10.865,0,21.431,1.252,31.608,3.563c63.684,14.429,111.387,71.436,111.387,139.424 c0,67.979-47.703,124.986-111.387,139.423c-10.178,2.302-20.743,3.563-31.608,3.563c-10.856,0-21.431-1.261-31.608-3.563 C204.683,549.441,156.98,492.434,156.98,424.455z\"><\/path><path d=\"M931.617,1767.534V1419.51c98.748-15.257,174.594-100.822,174.594-203.777s-75.846-188.529-174.594-203.777 V32.467c0-17.454-14.154-31.608-31.608-31.608c-17.462,0-31.608,14.155-31.608,31.608v979.488 c-98.757,15.248-174.603,100.822-174.603,203.777s75.846,188.521,174.603,203.777v348.024c0,17.453,14.146,31.608,31.608,31.608 C917.463,1799.143,931.617,1784.987,931.617,1767.534z M757.015,1215.732c0-67.986,47.703-124.995,111.386-139.424 c10.177-2.309,20.743-3.563,31.608-3.563c10.865,0,21.431,1.254,31.608,3.563c63.676,14.429,111.378,71.438,111.378,139.424 c0,67.979-47.702,124.986-111.378,139.424c-10.178,2.303-20.743,3.563-31.608,3.563c-10.865,0-21.431-1.26-31.608-3.563 C804.717,1340.719,757.015,1283.711,757.015,1215.732z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"erweiterbare-pv-projekte\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-93b4073669a4b78ed3923fa8f117a908\" style=\"font-size:16px\"><strong><strong>Expandable PV Projects<\/strong><\/strong><\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide are-vertically-aligned-top has-neve-link-color-color has-text-color has-link-color wp-elements-dff0f46d29cd7e39cabfb7548a402884 is-layout-flex wp-container-core-columns-is-layout-0fb72d45 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-top dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20);flex-basis:33.34%\">\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-26de122b wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-e148e5c0 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-21fe45eb\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M1541.606,1540.146l0.009-0.008c35.598-35.594,35.598-93.52,0-129.121 c-17.24-17.236-40.178-26.745-64.569-26.745c-24.378,0-47.314,9.509-64.564,26.763c-35.588,35.584-35.588,93.51,0.009,129.104 C1448.096,1575.73,1506.014,1575.73,1541.606,1540.146z M1440.885,1511.743c-9.656-9.655-14.975-22.498-14.975-36.165 c0-13.659,5.318-26.511,14.975-36.167c9.665-9.655,22.512-14.979,36.175-14.979c13.659,0,26.497,5.323,36.161,14.979 c19.938,19.945,19.938,52.387-0.008,72.332C1493.271,1531.689,1460.831,1531.681,1440.885,1511.743z\"><\/path><path d=\"M1700.934,402.736c0.021-0.026,0.047-0.043,0.068-0.065c0.044-0.043,0.083-0.091,0.127-0.134l5.504-5.505 l-0.138-0.139c81.836-87.814,80.038-225.814-5.507-311.356c-42.353-42.357-98.664-65.685-158.565-65.685 c-57.228,0-111.154,21.339-152.792,60.18l-0.134-0.134l-5.511,5.507c-0.043,0.046-0.09,0.085-0.134,0.131 c-0.021,0.021-0.039,0.045-0.061,0.069L66.371,1403.02l0.513,0.513c-7.364,4.749-12.699,12.548-13.98,21.907L9.578,1741.903 c-1.319,9.647,1.95,19.347,8.831,26.232c5.875,5.87,13.807,9.108,22.004,9.108c1.402,0,2.813-0.095,4.224-0.286l316.451-43.338 c9.365-1.276,17.163-6.617,21.912-13.98l0.512,0.513L1700.934,402.736z M1542.423,82.094c43.272,0,83.954,16.852,114.551,47.452 c55.643,55.638,62.276,142.02,19.897,204.983L1451.973,109.64C1478.482,91.724,1509.717,82.094,1542.423,82.094z M1389.497,167.919l229.113,229.112L383.512,1632.129l-86.195-86.19l991.423-991.409l-59.351-59.342l-991.41,991.418 l-83.585-83.586L1389.497,167.919z M76.804,1709.731l35.68-260.604l224.915,224.916L76.804,1709.731z\"><\/path><path d=\"M506.941,804.479l56.789-56.789l-454.446-454.45l185.432-185.437l87.924,87.932l-63.792,63.783 l50.362,50.359l63.792-63.779l51.262,51.258l-63.792,63.788l50.363,50.354l63.797-63.779l51.257,51.267l-94.375,94.353 l50.376,50.363l94.362-94.362l62.502,62.498l-63.792,63.801l50.363,50.354l63.792-63.792l0.043,0.047l56.789-56.789 L323.106,22.622c-15.682-15.686-41.102-15.686-56.784,0L24.102,264.845c-15.687,15.683-15.687,41.107,0,56.789L506.941,804.479z\"><\/path><path d=\"M1778.944,1478.287c-0.726-0.729-1.478-1.424-2.241-2.085l-505.282-505.273l-151.159,151.159l50.259,50.26 l94.371-94.37l428.79,428.782l-185.441,185.432l-479.045-479.041l-56.789,56.798l507.437,507.427 c15.682,15.69,41.102,15.69,56.788,0l242.234-242.213c0.021-0.034,0.048-0.052,0.079-0.086 C1794.63,1519.402,1794.63,1493.969,1778.944,1478.287z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"mehrere-wechselrichtern-mpp-tracker\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-f26804bfe74df875938915e1d91a8fa5\" style=\"font-size:16px\"><strong><strong>Multiple Inverters &amp; MPP Trackers<\/strong><\/strong><\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20);flex-basis:33.34%\">\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-26de122b wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-e148e5c0 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-25e0223e\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M1094.819,1135.051l-108.863-17.528c-9.449-34.07-22.999-66.744-40.445-97.562l64.601-89.408 c8.963-12.402,7.593-29.477-3.227-40.295l-97.074-97.083c-10.828-10.832-27.9-12.188-40.297-3.227l-89.409,64.601 c-30.817-17.446-63.496-30.991-97.557-40.44L665.01,705.239c-2.435-15.106-15.472-26.212-30.774-26.212H496.934 c-15.302,0-28.339,11.105-30.774,26.212l-17.535,108.864c-34.057,9.449-66.731,22.995-97.555,40.445l-89.409-64.601 c-12.399-8.958-29.474-7.597-40.295,3.222l-97.083,97.083c-10.819,10.823-12.187,27.897-3.225,40.3l64.599,89.408 c-17.448,30.826-30.994,63.5-40.443,97.562l-108.866,17.528c-15.106,2.436-26.214,15.472-26.214,30.774v137.306 c0,15.303,11.106,28.339,26.212,30.774l108.868,17.533c9.454,34.062,22.997,66.735,40.443,97.557l-64.599,89.409 c-8.962,12.401-7.595,29.474,3.225,40.297l97.083,97.083c10.819,10.819,27.892,12.181,40.295,3.223l89.409-64.605 c30.822,17.446,63.496,30.992,97.555,40.445l17.535,108.867c2.433,15.107,15.472,26.213,30.774,26.213h137.302 c15.302,0,28.339-11.105,30.774-26.213l17.537-108.871c34.062-9.449,66.736-22.995,97.549-40.437l89.417,64.601 c12.402,8.962,29.478,7.601,40.297-3.223l97.083-97.079c10.819-10.823,12.185-27.895,3.222-40.297l-64.604-89.413 c17.446-30.813,30.991-63.487,40.445-97.557l108.868-17.533c15.105-2.436,26.212-15.472,26.212-30.774v-137.306 C1121.036,1150.522,1109.926,1137.486,1094.819,1135.051z M1058.697,1276.58l-102.915,16.576 c-12.571,2.026-22.647,11.492-25.447,23.916c-9.362,41.506-25.665,80.833-48.459,116.882c-6.806,10.767-6.375,24.591,1.083,34.914 l61.078,84.529l-59.535,59.53l-84.534-61.074c-10.323-7.457-24.147-7.888-34.909-1.083 c-36.058,22.795-75.376,39.093-116.878,48.446c-12.419,2.805-21.89,12.88-23.917,25.451l-16.576,102.92h-84.204l-16.576-102.915 c-2.026-12.571-11.495-22.646-23.916-25.447c-41.495-9.357-80.822-25.66-116.889-48.455c-10.765-6.805-24.588-6.374-34.907,1.083 l-84.525,61.074l-59.535-59.535l61.069-84.524c7.458-10.323,7.889-24.143,1.085-34.909 c-22.796-36.066-39.097-75.394-48.454-116.887c-2.803-12.424-12.878-21.89-25.45-23.916L72.474,1276.58v-84.204l102.912-16.571 c12.574-2.026,22.651-11.497,25.452-23.921c9.351-41.488,25.653-80.812,48.454-116.887c6.804-10.767,6.373-24.586-1.085-34.909 l-61.069-84.525l59.535-59.536l84.525,61.076c10.321,7.458,24.147,7.888,34.909,1.083c36.073-22.806,75.398-39.108,116.882-48.457 c12.424-2.801,21.895-12.88,23.921-25.452l16.576-102.911h84.204l16.576,102.915c2.027,12.571,11.498,22.651,23.917,25.451 c41.502,9.354,80.82,25.656,116.878,48.453c10.767,6.805,24.59,6.375,34.913-1.083l84.53-61.076l59.53,59.536l-61.073,84.53 c-7.458,10.323-7.889,24.146-1.083,34.913c22.799,36.054,39.101,75.376,48.459,116.878c2.8,12.424,12.876,21.895,25.447,23.921 l102.915,16.571V1276.58z\"><\/path><path d=\"M565.583,928.422c-168.759,0-306.052,137.293-306.052,306.052s137.293,306.053,306.052,306.053 c168.763,0,306.061-137.294,306.061-306.053S734.346,928.422,565.583,928.422z M565.583,1478.187 c-134.384,0-243.713-109.328-243.713-243.713s109.329-243.713,243.713-243.713c134.389,0,243.722,109.328,243.722,243.713 S699.972,1478.187,565.583,1478.187z\"><\/path><path d=\"M1767.072,581.748l-74.516-50.033c4.279-27.761,5.383-55.804,3.291-83.786l78.155-44.071 c13.328-7.519,19.229-23.595,13.929-37.949l-40.059-108.459c-5.301-14.359-20.233-22.725-35.248-19.79l-88.043,17.302 c-16.598-22.621-35.662-43.215-56.956-61.531l24.099-86.456c4.105-14.741-3.088-30.278-16.984-36.679l-105.002-48.368 c-13.902-6.418-30.392-1.774-38.919,10.932l-50.038,74.52c-27.703-4.253-55.785-5.375-83.777-3.288l-44.075-78.154 c-7.522-13.332-23.595-19.233-37.953-13.928l-108.459,40.058c-14.358,5.301-22.738,20.237-19.786,35.253l17.308,88.03 c-22.625,16.598-43.224,35.666-61.54,56.964l-86.446-24.104c-14.741-4.092-30.282,3.092-36.684,16.985l-48.372,105.002 c-6.401,13.897-1.766,30.387,10.932,38.918l74.511,50.038c-4.274,27.765-5.379,55.808-3.283,83.781l-78.15,44.072 c-13.328,7.519-19.229,23.599-13.928,37.949l40.058,108.463c5.301,14.354,20.256,22.76,35.253,19.786l88.03-17.303 c16.585,22.612,35.648,43.206,56.961,61.535l-24.104,86.451c-4.105,14.737,3.087,30.283,16.984,36.684l105.006,48.366 c13.902,6.404,30.387,1.77,38.919-10.938l50.042-74.512c27.695,4.257,55.781,5.375,83.777,3.288l44.076,78.161 c5.656,10.036,16.176,15.863,27.151,15.863c3.601,0,7.253-0.626,10.792-1.936l108.469-40.06 c14.357-5.301,22.738-20.238,19.785-35.253l-17.307-88.039c22.611-16.589,43.206-35.657,61.535-56.96l86.451,24.104 c14.74,4.092,30.282-3.088,36.684-16.985l48.363-105.006C1784.404,606.769,1779.777,590.28,1767.072,581.748z M1684.125,675.479 l-80.555-22.459c-12.275-3.409-25.378,0.97-33.118,11.08c-21.507,28.091-47.402,52.06-76.968,71.245 c-10.688,6.932-16.08,19.664-13.619,32.161l16.124,82.021l-58.651,21.664l-41.059-72.815c-5.574-9.884-16.002-15.859-27.143-15.859 c-1.361,0-2.735,0.087-4.113,0.27c-34.727,4.623-70.428,3.214-104.798-4.109c-12.445-2.656-25.269,2.535-32.37,13.111 l-46.624,69.418l-56.772-26.147l22.455-80.555c3.418-12.267-0.966-25.382-11.08-33.122c-28.092-21.503-52.06-47.398-71.245-76.963 c-6.927-10.685-19.655-16.072-32.161-13.619l-82.012,16.119l-21.664-58.651l72.811-41.058 c11.093-6.257,17.264-18.629,15.585-31.252c-4.636-34.957-3.253-70.214,4.113-104.793c2.653-12.458-2.539-25.273-13.106-32.374 l-69.427-46.62l26.155-56.777l80.551,22.459c12.264,3.405,25.383-0.97,33.123-11.084c21.48-28.073,47.38-52.042,76.971-71.245 c10.685-6.931,16.076-19.664,13.615-32.161l-16.123-82.012l58.651-21.664l41.058,72.81c6.254,11.093,18.615,17.272,31.257,15.589 c34.727-4.609,70.419-3.209,104.798,4.113c12.44,2.648,25.264-2.539,32.369-13.11l46.62-69.432l56.773,26.151l-22.456,80.563 c-3.418,12.271,0.971,25.387,11.084,33.123c28.065,21.481,52.034,47.372,71.232,76.958c6.936,10.685,19.668,16.059,32.156,13.62 l82.029-16.12l21.664,58.647l-72.818,41.058c-11.094,6.258-17.264,18.629-15.585,31.252c4.64,34.97,3.257,70.228-4.114,104.793 c-2.66,12.458,2.531,25.277,13.106,32.378l69.432,46.62L1684.125,675.479z\"><\/path><path d=\"M1324.474,212.717c-31.026,0-61.63,5.492-90.97,16.329c-135.858,50.172-205.564,201.52-155.392,337.383 c37.927,102.701,136.95,171.707,246.409,171.716c0.009,0,0.009,0,0.018,0c31.014,0,61.617-5.492,90.952-16.329 c135.854-50.172,205.568-201.52,155.396-337.375C1532.951,281.727,1433.928,212.717,1324.474,212.717z M1393.896,663.338 c-22.402,8.275-45.736,12.467-69.357,12.467c0,0-0.009,0-0.014,0c-83.477-0.004-159.005-52.638-187.936-130.971 c-38.266-103.619,14.898-219.048,118.514-257.311c22.398-8.275,45.736-12.467,69.37-12.467 c83.478,0,159.001,52.638,187.936,130.979C1550.672,509.646,1497.503,625.071,1393.896,663.338z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"komplexe-anlagenstrukturen\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-e2070542a4699d173a1033deb6ee35e8\" style=\"font-size:16px\"><strong><strong>Complex System Structures<\/strong><\/strong><\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20);flex-basis:33.33%\">\n<div class=\"wp-block-group\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-26de122b wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-e148e5c0 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-5ecccffc\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"erhohte-sicherheitsanforderungen\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-6000938d9282890dfb3e08a2f5315a11\" style=\"font-size:16px\"><strong><strong>Increased Safety Requirements<\/strong><\/strong><\/h3>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">The modular system architecture is particularly suitable for complex roof structures, multiple generator fields, and large PV capacities with many strings. Depending on system size, switching units for 2 to 24 strings are available \u2013 with system voltages up to 1,500 V DC and up to 20 A per string. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For extensive sites, multiple QFire systems can be controlled together via the QFire Cluster Control Box. This allows central disconnection of multiple buildings or separate generator fields. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Surge protection, external emergency stop buttons, key switches, status contacts, and online monitoring via QFire.LIVE are optionally available.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 id=\"q-fire-big-ist-ein-feuerwehrschalter-fur-grosse-pv-anlagen-mit-mehreren-generatorfeldern-komplexen-dachstrukturen-und-hohen-sicherheitsanforderungen\" class=\"wp-block-heading dc-card has-neve-text-color-color has-text-color has-background has-link-color wp-elements-9f52c45817113488be720a3758112b92\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-right-style:none;border-right-width:0px;border-left-color:var(--wp--preset--color--neve-text-color);border-left-width:1px;background-color:#f5f6f79e;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);font-size:16px\">QFire BIG is a firefighter switch for large PV systems with multiple generator fields, complex roof structures, and high safety requirements.<\/h3>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 id=\"feuerwehrschalter-q-fire-big-in-der-anlagenplanung\" class=\"wp-block-heading\">QFire BIG PV Firefighter Safety Switch in PV System Planning<\/h2>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">\n<h3 id=\"welcher-feuerwehrschalter-eignet-sich-fur-gewerbliche-pv-anlagen\" class=\"wp-block-heading\">Which PV firefighter switch is suitable for commercial PV systems?<\/h3>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">In commercial and industrial PV systems, a simple DC disconnect switch at the inverter is often not sufficient, especially when long DC cable routes, multiple roof areas or specific requirements from the fire safety concept have to be considered. The key points are where the PV strings are disconnected, which voltages and currents are present, and how the shutdown should be triggered in an emergency. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">QFire BIG is designed for exactly these types of systems. The switch box is installed close to the PV generator and disconnects the connected PV strings by galvanic isolation according to IEC 60947-3. This allows the DC cables from the switch box towards the inverter to be disconnected in a controlled way \u2013 manually via the control box, via external emergency stop or key switches, via a fire alarm system or, depending on the system design, AC-coupled in case of grid failure. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For planners and installers, the important point is this: QFire BIG is not treated as a standard off-the-shelf device, but is configured project-specifically according to the number of strings, roof structure, cable routing, protection concept and required accessories.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">\n<h3 id=\"was-benotigt-man-fur-die-dc-stringabschaltung-bei-grossen-pv-anlagen\" class=\"wp-block-heading\">What is needed for DC string disconnection in large PV systems?<\/h3>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">In large PV systems, DC string disconnection should be considered early in the planning phase. The most relevant factors are the maximum DC system voltage, the short-circuit current per string, the number of strings, the allocation to MPPTs, the cable routes from the PV generator to the inverter and the requirements from the fire safety concept. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">QFire BIG is configured precisely for these conditions. Depending on the project, several strings can be combined in one switch box and disconnected close to the generator. Optional components such as surge protection, PV fuses, status contacts, external shutdown points or cluster solutions for multiple roof areas can be integrated.  <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The aim is not to place as many components as possible somewhere in the system, but to create a clear and serviceable DC structure: traceable string routing, a defined disconnection point, clear status indication and a solution that fits the actual PV system.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">\n<h3 id=\"wie-lassen-sich-mehrere-pv-strings-sicher-abschalten\" class=\"wp-block-heading\">How can multiple PV strings be disconnected safely?<\/h3>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Multiple PV strings are best disconnected at the point where they are routed from the generator towards the building or inverter. This is exactly where QFire BIG is used. The switch box is installed close to the generator and disconnects the connected DC string cables by galvanic isolation.  <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Depending on the configuration, several PV strings can be handled in one QFire BIG switch box. This makes it possible to create a structured shutdown concept even for larger rooftop systems, without having to treat every single string with a separate standalone solution. Operation is carried out centrally via the control box or via integrated external shutdown points.  <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For large systems with several building sections or roof areas, the shutdown concept can also be planned using cluster technology. This keeps operation clear and manageable, even when the DC structure of the PV system is more complex. <\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-text-color-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-4c3d31c9 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\">\n<h2 id=\"dc-und-ac-abschaltung-im-anlagenkonzept-kombinieren\" class=\"wp-block-heading\">Combining DC and AC shutdown in the system concept<\/h2>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns has-nv-text-dark-bg-color has-neve-text-color-background-color has-text-color has-background has-link-color wp-elements-ea2abcd4e93189ba36909685c231cf11 is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">\n<p class=\"wp-block-paragraph\">In large PV systems, industrial projects and megawatt installations, the shutdown concept often has to be considered as a complete system. QFire BIG disconnects the PV strings on the DC side close to the generator by galvanic isolation according to IEC 60947-3. In addition, the status contact of the QFire control box can be used project-specifically to integrate external AC-side components \u2013 for example a grid and system protection relay, an inverter enable signal or a site-specific contactor control. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is particularly relevant for large rooftop systems, installations with several inverters, hybrid systems with battery storage or projects with special requirements regarding fire safety, grid connection and operational safety.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--40);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">\n<p class=\"wp-block-paragraph\">More information on combined DC and AC-side shutdown can be found in our technical explanation of QFire PV generator disconnection.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-secondary\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/q3-energie.de\/en\/technic\/pv-firefighter-safety-switch\/\">DC and AC-side shutdown with QFire \u2013 technically explained \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading alignwide\" id=\"modular\" style=\"font-size:28px\">Modular System Design of Generator Disconnection for Large PV Systems and Rooftop Installations<\/h2>\n\n\n\n<div class=\"wp-block-columns alignwide has-nv-text-dark-bg-background-color has-background is-layout-flex wp-container-core-columns-is-layout-4c3d31c9 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:0;padding-left:0;flex-basis:50%\">\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">QFire BIG enables galvanic isolation of PV strings between the generator field and inverter. Typical components are: <\/p>\n\n\n\n<div class=\"wp-block-group dc-card is-content-justification-left is-nowrap is-layout-flex wp-container-core-group-is-layout-8d609e63 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-6dd137ee\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"trennung-von-steuerung-2-und-dc-schaltboxen-1\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-e94259ae6bc2b93a84fdab218aa41252\" style=\"font-size:16px\"><strong><strong><strong>Separation of control [2] and DC switch boxes<\/strong> <strong>[1]<\/strong><\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group dc-card is-nowrap is-layout-flex wp-container-core-group-is-layout-e148e5c0 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-20a35e58\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"erweiterbar-durch-zusatzliche-schaltboxen\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-94042c2cdb41dd89b2449426305a8b70\" style=\"font-size:16px\"><strong><strong><strong><strong>Expandable through additional switch boxes<\/strong><\/strong><\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group dc-card is-nowrap is-layout-flex wp-container-core-group-is-layout-e148e5c0 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-ad6630da\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"integration-von-brandmeldeanlage-und-oder-externer-not-aus-taster-3\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-653b205211863eafc4ef6259ec40d292\" style=\"font-size:16px\"><strong><strong><strong><strong><strong>Integration of fire alarm system and\/or external emergency stop button <strong>[3]<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group dc-card is-nowrap is-layout-flex wp-container-core-group-is-layout-e148e5c0 wp-block-group-is-layout-flex\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-59eaa5b4\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"zentrale-oder-clusterbasierte-abschaltung\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-6dc8b4362fe61306e7fc5a584c976e79\" style=\"font-size:16px\"><strong><strong><strong><strong><strong>Central or cluster-based disconnection <\/strong><\/strong><\/strong><\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">The QFire BIG system has a modular design and consists of a central control box, optional cluster control boxes, and DC switch boxes for up to 24 strings per box. The switch boxes are custom-built and can optionally be equipped with surge protection and fuses. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\"><strong>Optional components are:<\/strong><br><br>\u25a0 Fire alarm system connection<br>\u25a0 Integrated surge protection<br>\u25a0 Integrated fuses in positive and\/or negative pole<br>\u25a0 External emergency stop button<br>\u25a0 Cluster technology for multiple roof areas<br>\u25a0 Online monitoring<br>\u25a0 Delay circuit (time-delayed disconnection of large systems)<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:0;padding-left:0\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"794\" height=\"794\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Aufbau-des-QFire-Feuerwehrschalter-Systems.webp\" alt=\"Structure of the QFire PV Firefighter Safety Switch System\" class=\"wp-image-734\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Aufbau-des-QFire-Feuerwehrschalter-Systems.webp 794w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Aufbau-des-QFire-Feuerwehrschalter-Systems-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Aufbau-des-QFire-Feuerwehrschalter-Systems-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Aufbau-des-QFire-Feuerwehrschalter-Systems-768x768.webp 768w\" sizes=\"auto, (max-width: 794px) 100vw, 794px\" \/><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 id=\"im-abschaltfall-werden-alle-strings-galvanisch-getrennt-sodass-die-leitungen-ab-dem-installationsort-des-feuerwehrschalters-in-richtung-wechselrichter-spannungsfrei-werden-diese-trennung-von-steuer-und-schaltfunktion-ermoglicht-eine-flexible-anpassung-an-anlagengrosse-dachstruktur-und-sicherheitsanforderungen\" class=\"wp-block-heading dc-card has-neve-text-color-color has-text-color has-background has-link-color wp-elements-bce79be55b562787a41691c3b4936de8\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-right-style:none;border-right-width:0px;border-left-color:var(--wp--preset--color--neve-text-color);border-left-width:1px;background-color:#f5f6f79e;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);font-size:16px\">In case of disconnection, all strings are galvanically isolated so that the lines from the installation location of the firefighter switch toward the inverter become de-energized.<br><br><strong>This separation of control and switching function enables flexible adaptation to system size, roof structure, and safety requirements.<\/strong><\/h3>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\"><img loading=\"lazy\" decoding=\"async\" width=\"1058\" height=\"800\" class=\"wp-block-cover__image-background wp-image-812 size-full\" alt=\"Cluster Steuerbox f\u00fcr mehrere Generatorfl\u00e4chen\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen.webp 1058w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-300x227.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-1024x774.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-768x581.webp 768w\" sizes=\"auto, (max-width: 1058px) 100vw, 1058px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-text-color-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide has-neve-link-color-color has-text-color has-link-color wp-elements-f25021a4ab2a7ffba3824241e38ab0b0 is-layout-flex wp-container-core-columns-is-layout-52356811 wp-block-columns-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--70);padding-right:0;padding-bottom:var(--wp--preset--spacing--70);padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center has-nv-site-bg-color has-text-color has-link-color wp-elements-f1c44d9d72fb727f368751d4f713e962 is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);flex-basis:50%\">\n<h2 id=\"galvanische-trennung-der-dc-strings-beim-feuerwehrschalter-q-fire-big\" class=\"wp-block-heading has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-b560403debc29521829a627df97bf8d3\" style=\"border-style:none;border-width:0px;font-size:28px\">Galvanic Isolation of All DC Strings by the QFire BIG PV Firefighter Safety Switch<\/h2>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">The QFire PV firefighter switch provides two-pole galvanic isolation of all connected PV strings in accordance with IEC 60947-3. In the event of activation, both the positive and negative conductors of each string are reliably disconnected from the inverter, ensuring maximum safety during fire incidents and emergency response.<\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-group dc-card animated fadeInLeft has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-52fe91d8d8daa1547a3b31d0c538e6d8 is-nowrap is-layout-flex wp-container-core-group-is-layout-6e81cd72 wp-block-group-is-layout-flex\" style=\"padding-top:0;padding-bottom:0\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-95a6e367\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-7636bc46229120a59bb808e7a151d551\" id=\"klare-abgrenzung-zu-motorschalter-losungen\" style=\"font-size:16px\"><strong><strong>Clear distinction from motor switch solutions<\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group dc-card animated fadeInLeft delay-1s has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-47829f305c3ba6b38594c456853f869e is-nowrap is-layout-flex wp-container-core-group-is-layout-6e81cd72 wp-block-group-is-layout-flex\" style=\"padding-top:0;padding-bottom:0\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-32d88911\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-418bf6f4d7a609f43760e1e69fce035d\" id=\"zweipolige-trennung-von-plus-und-minus\" style=\"font-size:16px\"><strong><strong><strong>Two-pole disconnection of positive and negative conductors<\/strong><\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group dc-card animated fadeInLeft delay-2s has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-e588f0658674e6d0efc7c9eb637dad3c is-nowrap is-layout-flex wp-container-core-group-is-layout-6e81cd72 wp-block-group-is-layout-flex\" style=\"padding-top:0;padding-bottom:0\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-ec952f0e\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-ff353200d006b1bfd4db43533dba9f12\" id=\"sichere-unterbrechung-der-dc-verbindung\" style=\"font-size:16px\"><strong><strong><strong>Safe interruption of the DC connection<\/strong><\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group dc-card animated fadeInLeft delay-3s undefined has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-efbc0e22300b3a6cddb3b831d7a8c877 is-nowrap is-layout-flex wp-container-core-group-is-layout-6e81cd72 wp-block-group-is-layout-flex\" style=\"padding-top:0;padding-bottom:0\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-92bb0aa1\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-fa53e3bec58daf2f559bd571cc57dfca\" id=\"dc-seitige-abschaltung-direkt-am-string-statt-nur-netzseitiger-trennung\" style=\"font-size:16px\"><strong><strong><strong>DC-side shutdown directly at string level instead of AC-side isolation only<\/strong><\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-group dc-card animated fadeInLeft delay-4s has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-bffaaed2827a949056e2c7c9595632d7 is-nowrap is-layout-flex wp-container-core-group-is-layout-6e81cd72 wp-block-group-is-layout-flex\" style=\"padding-top:0;padding-bottom:0\">\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-23e73db0\" class=\"wp-block-themeisle-blocks-font-awesome-icons\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-6fda9897fea1c58807f585356006b98e\" id=\"geeignet-fur-systemspannungen-bis-1-500-v-dc-und-bis-zu-20-a-pro-string\" style=\"font-size:16px\"><strong><strong><strong>Suitable for system voltages up to 1,500 V DC and string currents up to 20 A<\/strong><\/strong><\/strong><\/h3>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);flex-basis:50%\">\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"125\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/galvanische-Trennung-300x125.webp\" alt=\"\" class=\"wp-image-4725\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/galvanische-Trennung-300x125.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/galvanische-Trennung.webp 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"dc-card has-nv-text-dark-bg-color has-text-color has-background has-link-color wp-elements-f33dc45f93b3845f8ea74d211c6ff1d1 wp-block-paragraph\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-left-color:var(--wp--preset--color--nv-text-dark-bg);border-left-width:1px;background-color:#ffffff08;font-size:16px\">Galvanic isolation completely interrupts the electrical connection between the PV generator and the inverter. After activation, the cables downstream of the QFire switching unit are de-energised. This principle significantly reduces DC-related hazards during fire emergencies and helps maximise safety for firefighters, emergency responders and service personnel.  <br><br>This shutdown principle significantly improves safety during fire and emergency situations by reliably interrupting dangerous DC voltage. At the same time, galvanic isolation remains effective regardless of the PV system configuration, string length or the number of connected generator fields. <\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"800\" class=\"wp-block-cover__image-background wp-image-454 size-full\" alt=\"Technische Details\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp 1920w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-300x125.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1024x427.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-768x320.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1536x640.webp 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-nv-text-dark-bg-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<h2 class=\"wp-block-heading alignwide has-neve-text-color-color has-text-color has-link-color wp-elements-c33352d87f42bc1d808abdb015956112\" id=\"steuerbox\" style=\"font-size:28px\">QFire BIG Firefighter Safety Switch: Control Box for Large PV Systems<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Central Control and Coordinated Disconnection of PV Strings<\/strong><\/p>\n\n\n\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-60a894ac35883b6c33bb5042438434f1 wp-block-paragraph\" style=\"font-size:16px\"><em>The QFire control box operates with independent system logic. This ensures that the disconnection function remains clearly defined and reliably controllable even with complex system structures, multiple roof areas, or long cable runs. <\/em><\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide has-neve-link-color-color has-text-color has-link-color wp-elements-b73caf957e58eabeda8c79bc046facda is-layout-flex wp-container-core-columns-is-layout-0fb72d45 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center has-nv-site-bg-color has-text-color has-link-color wp-elements-1c621ea4ce20840623283720e467a73b is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;flex-basis:50%\">\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-a050c9dc\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-d704894d\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M899.996,6.911C405.643,6.911,3.458,409.103,3.458,903.462C3.458,1397.811,405.643,1800,899.996,1800 c494.357,0,896.546-402.189,896.546-896.538C1796.542,409.103,1394.353,6.911,899.996,6.911z M899.996,1737.1 c-459.667,0-833.637-373.97-833.637-833.638c0-459.679,373.969-833.649,833.637-833.649c459.672,0,833.644,373.971,833.644,833.649 C1733.64,1363.13,1359.668,1737.1,899.996,1737.1z\"><\/path><path d=\"M1073.088,393.764v66.982c176.77,69.347,302.257,241.646,302.257,442.716 c0,262.101-213.239,475.332-475.349,475.332c-262.101,0-475.336-213.231-475.336-475.332 c0-201.075,125.491-373.374,302.261-442.725v-66.973c-212.139,72.23-365.162,273.421-365.162,509.698 c0,296.781,241.452,538.234,538.238,538.234c296.79,0,538.251-241.453,538.251-538.234 C1438.247,667.194,1285.223,466.002,1073.088,393.764z\"><\/path><path d=\"M900.004,880.287c17.371,0,31.45-14.084,31.45-31.451V286.086c0-17.371-14.079-31.451-31.45-31.451 c-17.37,0-31.45,14.08-31.45,31.451v562.749C868.554,866.202,882.634,880.287,900.004,880.287z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Central System Logic<\/strong><br\/>Central evaluation of all control signals and coordinated control of switch boxes<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-4b580ab5\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-1s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M899.996,6.911C405.643,6.911,3.458,409.103,3.458,903.462C3.458,1397.811,405.643,1800,899.996,1800 c494.357,0,896.546-402.189,896.546-896.538C1796.542,409.103,1394.353,6.911,899.996,6.911z M899.996,1737.1 c-459.667,0-833.637-373.97-833.637-833.638c0-459.679,373.969-833.649,833.637-833.649c459.672,0,833.644,373.971,833.644,833.649 C1733.64,1363.13,1359.668,1737.1,899.996,1737.1z\"><\/path><path d=\"M1073.088,393.764v66.982c176.77,69.347,302.257,241.646,302.257,442.716 c0,262.101-213.239,475.332-475.349,475.332c-262.101,0-475.336-213.231-475.336-475.332 c0-201.075,125.491-373.374,302.261-442.725v-66.973c-212.139,72.23-365.162,273.421-365.162,509.698 c0,296.781,241.452,538.234,538.238,538.234c296.79,0,538.251-241.453,538.251-538.234 C1438.247,667.194,1285.223,466.002,1073.088,393.764z\"><\/path><path d=\"M900.004,880.287c17.371,0,31.45-14.084,31.45-31.451V286.086c0-17.371-14.079-31.451-31.45-31.451 c-17.37,0-31.45,14.08-31.45,31.451v562.749C868.554,866.202,882.634,880.287,900.004,880.287z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Flexible Disconnection Triggering<\/strong><br\/>Control via firefighter button, external emergency stop, fire alarm system, or AC-coupled via the power grid<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-188fa3b9\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-2s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M899.996,6.911C405.643,6.911,3.458,409.103,3.458,903.462C3.458,1397.811,405.643,1800,899.996,1800 c494.357,0,896.546-402.189,896.546-896.538C1796.542,409.103,1394.353,6.911,899.996,6.911z M899.996,1737.1 c-459.667,0-833.637-373.97-833.637-833.638c0-459.679,373.969-833.649,833.637-833.649c459.672,0,833.644,373.971,833.644,833.649 C1733.64,1363.13,1359.668,1737.1,899.996,1737.1z\"><\/path><path d=\"M1073.088,393.764v66.982c176.77,69.347,302.257,241.646,302.257,442.716 c0,262.101-213.239,475.332-475.349,475.332c-262.101,0-475.336-213.231-475.336-475.332 c0-201.075,125.491-373.374,302.261-442.725v-66.973c-212.139,72.23-365.162,273.421-365.162,509.698 c0,296.781,241.452,538.234,538.238,538.234c296.79,0,538.251-241.453,538.251-538.234 C1438.247,667.194,1285.223,466.002,1073.088,393.764z\"><\/path><path d=\"M900.004,880.287c17.371,0,31.45-14.084,31.45-31.451V286.086c0-17.371-14.079-31.451-31.45-31.451 c-17.37,0-31.45,14.08-31.45,31.451v562.749C868.554,866.202,882.634,880.287,900.004,880.287z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Clear Separation of Control and DC Switching<\/strong><br\/>No DC load switching in the control box, resulting in clean system architecture<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-a6ca8186\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-3s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M899.996,6.911C405.643,6.911,3.458,409.103,3.458,903.462C3.458,1397.811,405.643,1800,899.996,1800 c494.357,0,896.546-402.189,896.546-896.538C1796.542,409.103,1394.353,6.911,899.996,6.911z M899.996,1737.1 c-459.667,0-833.637-373.97-833.637-833.638c0-459.679,373.969-833.649,833.637-833.649c459.672,0,833.644,373.971,833.644,833.649 C1733.64,1363.13,1359.668,1737.1,899.996,1737.1z\"><\/path><path d=\"M1073.088,393.764v66.982c176.77,69.347,302.257,241.646,302.257,442.716 c0,262.101-213.239,475.332-475.349,475.332c-262.101,0-475.336-213.231-475.336-475.332 c0-201.075,125.491-373.374,302.261-442.725v-66.973c-212.139,72.23-365.162,273.421-365.162,509.698 c0,296.781,241.452,538.234,538.238,538.234c296.79,0,538.251-241.453,538.251-538.234 C1438.247,667.194,1285.223,466.002,1073.088,393.764z\"><\/path><path d=\"M900.004,880.287c17.371,0,31.45-14.084,31.45-31.451V286.086c0-17.371-14.079-31.451-31.45-31.451 c-17.37,0-31.45,14.08-31.45,31.451v562.749C868.554,866.202,882.634,880.287,900.004,880.287z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Status and Remote Signaling Contacts<\/strong><br\/>Feedback of operating and switching states for integration into higher-level systems<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-041d8947\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-4s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M899.996,6.911C405.643,6.911,3.458,409.103,3.458,903.462C3.458,1397.811,405.643,1800,899.996,1800 c494.357,0,896.546-402.189,896.546-896.538C1796.542,409.103,1394.353,6.911,899.996,6.911z M899.996,1737.1 c-459.667,0-833.637-373.97-833.637-833.638c0-459.679,373.969-833.649,833.637-833.649c459.672,0,833.644,373.971,833.644,833.649 C1733.64,1363.13,1359.668,1737.1,899.996,1737.1z\"><\/path><path d=\"M1073.088,393.764v66.982c176.77,69.347,302.257,241.646,302.257,442.716 c0,262.101-213.239,475.332-475.349,475.332c-262.101,0-475.336-213.231-475.336-475.332 c0-201.075,125.491-373.374,302.261-442.725v-66.973c-212.139,72.23-365.162,273.421-365.162,509.698 c0,296.781,241.452,538.234,538.238,538.234c296.79,0,538.251-241.453,538.251-538.234 C1438.247,667.194,1285.223,466.002,1073.088,393.764z\"><\/path><path d=\"M900.004,880.287c17.371,0,31.45-14.084,31.45-31.451V286.086c0-17.371-14.079-31.451-31.45-31.451 c-17.37,0-31.45,14.08-31.45,31.451v562.749C868.554,866.202,882.634,880.287,900.004,880.287z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Cluster-Capable for System Structures with Multiple Roof Areas<\/strong><br\/>Cluster control box for large or distributed systems<\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;flex-basis:50%\"><div class=\"wp-block-image q3-duotone\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire-Feuerwehrschalter-Steuerbox.webp\" alt=\"QFire Firefighter Switch Control Box\" class=\"wp-image-800\" style=\"width:auto;height:400px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire-Feuerwehrschalter-Steuerbox.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire-Feuerwehrschalter-Steuerbox-300x200.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire-Feuerwehrschalter-Steuerbox-768x512.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-secondary\"><a class=\"wp-block-button__link has-neve-text-color-color has-text-color has-link-color wp-element-button\" href=\"https:\/\/q3-energie.de\/en\/downloads\/qfire-firefighter-switch-iec-60947-3-data-sheets\/\" style=\"border-width:1px\">Download Technical Documentation \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 id=\"die-steuerbox-bildet-das-zentrale-steuerelement-der-q-fire-big-generatorfreischaltung-sie-ubernimmt-die-komplette-auswertelogik-der-anliegenden-steuersignale-und-koordiniert-die-ansteuerung-der-angeschlossenen-schaltboxen-im-auslosefall-sorgt-die-steuerbox-fur-eine-definierte-sichere-abschaltung-aller-angebundenen-dc-strings-unabhangig-von-anzahl-entfernung-oder-anlagengrosse-durch-die-klare-trennung-von-steuerung-und-dc-schaltfunktion-bleibt-die-elektrische-struktur-ubersichtlich-und-normkonform-die-steuerbox-selbst-schaltet-keine-dc-lasten-sondern-fungiert-als-ubergeordnete-logik-und-schnittstellenebene-dadurch-eignet-sich-das-system-besonders-fur-grossere-und-komplexe-pv-anlagen-mit-mehreren-generatorfeldern-oder-spaterem-erweiterungsbedarf\" class=\"wp-block-heading dc-card has-neve-text-color-color has-text-color has-background has-link-color wp-elements-06de92bf8b6d63e5c80293d4396f50b5\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-right-style:none;border-right-width:0px;border-left-color:var(--wp--preset--color--neve-text-color);border-left-width:1px;background-color:#f5f6f79e;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);font-size:16px\">The control box forms the central control element of the QFire BIG generator disconnection. It handles the complete evaluation logic of incoming control signals and coordinates the control of connected switch boxes. In case of triggering, the control box ensures defined, safe disconnection of all connected DC strings \u2013 regardless of number, distance, or system size.  <br><br><strong>Through the clear separation of control and DC switching function, the electrical structure remains clear and compliant with standards. The control box itself does not switch DC loads but functions as a higher-level logic and interface layer. This makes the system particularly suitable for larger and complex PV systems with multiple generator fields or future expansion requirements.  <\/strong><\/h3>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\"><img loading=\"lazy\" decoding=\"async\" width=\"1058\" height=\"800\" class=\"wp-block-cover__image-background wp-image-812 size-full\" alt=\"Cluster Steuerbox f\u00fcr mehrere Generatorfl\u00e4chen\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen.webp 1058w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-300x227.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-1024x774.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-768x581.webp 768w\" sizes=\"auto, (max-width: 1058px) 100vw, 1058px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-link-color-background-color has-background-dim-90 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div class=\"wp-block-columns alignwide are-vertically-aligned-center has-neve-link-color-color has-text-color has-link-color wp-elements-1ff328445bc294e5bdb475bbc21c6e31 is-layout-flex wp-container-core-columns-is-layout-0fb72d45 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center has-nv-site-bg-color has-text-color has-link-color wp-elements-59d660f26869a345ee771ac0d9ea3f38 is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);flex-basis:66%\">\n<h2 id=\"feuerwehrschalter-q-fire-big-cluster-technik-fur-grosse-pv-anlagen\" class=\"wp-block-heading has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-44ab62dc90f1b6800ee4337baab9fa26\" style=\"font-size:28px\">QFire BIG PV Firefighter Safety Switch: <br>Cluster Technology for Large PV Systems<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-06b03173\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-dba78e01\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft\"><i class=\"fas fa-shield-alt wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Star-shaped connection of multiple Switch Boxes<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-9db3731a\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-1s\"><i class=\"fas fa-shield-alt wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Simultaneous Disconnection of Up to 5 Roof Areas<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-39f56338\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-2s\"><i class=\"fas fa-shield-alt wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Nearly Unlimited Scalability<\/strong><\/p><\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"dc-card has-background wp-block-paragraph\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-left-width:1px;background-color:#004d9982\"><strong>Cluster technology enables central disconnection of multiple generator fields via a common control logic.<\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);flex-basis:50%\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-PV-QFire-Cluster-Technologie-zur-Abschaltung-mehrerer-Dachflaechen.webp\" alt=\"QFire PV Firefighter Switch Cluster Technology for Disconnecting Multiple Roof Areas\" class=\"wp-image-1533\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-PV-QFire-Cluster-Technologie-zur-Abschaltung-mehrerer-Dachflaechen.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-PV-QFire-Cluster-Technologie-zur-Abschaltung-mehrerer-Dachflaechen-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-PV-QFire-Cluster-Technologie-zur-Abschaltung-mehrerer-Dachflaechen-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-PV-QFire-Cluster-Technologie-zur-Abschaltung-mehrerer-Dachflaechen-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;min-height:942px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"800\" class=\"wp-block-cover__image-background wp-image-454 size-full\" alt=\"Technische Details\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp 1920w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-300x125.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1024x427.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-768x320.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1536x640.webp 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-nv-text-dark-bg-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<h2 class=\"wp-block-heading alignwide has-neve-text-color-color has-text-color has-link-color wp-elements-6cc21dd1a4e4ed508ac08f4b276ff227\" id=\"feuerwehrschalter-q-fire-big-cluster-steuerbox-fur-zentrale-abschaltung-verteilter-generatorfelder\" style=\"font-size:28px\">QFire BIG PV Firefighter Safety Switch: Cluster Control Box for Central Shutdown of Distributed Generator Fields<\/h2>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Additionally: Higher-Level, Star-Configured Disconnection Structure<\/strong><\/p>\n\n\n\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-de4e0cbc4031183be68ab19e54fe3e2b wp-block-paragraph\" style=\"font-size:16px\"><em><em>For large and complex photovoltaic systems with multiple roof areas or generator fields, the cluster control box extends the QFire BIG system with a higher-level, star-configured disconnection structure.<\/em><\/em><\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide has-neve-link-color-color has-text-color has-link-color wp-elements-339fecd7767337135d935d33a17fb3dd is-layout-flex wp-container-core-columns-is-layout-0fb72d45 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center has-nv-site-bg-color has-text-color has-link-color wp-elements-72e0c89a65f0a46e5b80192b7c4a9e22 is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;flex-basis:50%\">\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-9f3be409\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-5bc1c3b4\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M899.996,6.911C405.643,6.911,3.458,409.103,3.458,903.462C3.458,1397.811,405.643,1800,899.996,1800 c494.357,0,896.546-402.189,896.546-896.538C1796.542,409.103,1394.353,6.911,899.996,6.911z M899.996,1737.1 c-459.667,0-833.637-373.97-833.637-833.638c0-459.679,373.969-833.649,833.637-833.649c459.672,0,833.644,373.971,833.644,833.649 C1733.64,1363.13,1359.668,1737.1,899.996,1737.1z\"><\/path><path d=\"M1073.088,393.764v66.982c176.77,69.347,302.257,241.646,302.257,442.716 c0,262.101-213.239,475.332-475.349,475.332c-262.101,0-475.336-213.231-475.336-475.332 c0-201.075,125.491-373.374,302.261-442.725v-66.973c-212.139,72.23-365.162,273.421-365.162,509.698 c0,296.781,241.452,538.234,538.238,538.234c296.79,0,538.251-241.453,538.251-538.234 C1438.247,667.194,1285.223,466.002,1073.088,393.764z\"><\/path><path d=\"M900.004,880.287c17.371,0,31.45-14.084,31.45-31.451V286.086c0-17.371-14.079-31.451-31.45-31.451 c-17.37,0-31.45,14.08-31.45,31.451v562.749C868.554,866.202,882.634,880.287,900.004,880.287z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong><strong>Star-Configured System Structure<\/strong><\/strong><br\/>Central connection of multiple switch boxes or system areas via a defined cluster topology<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-868edec5\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-1s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M899.996,6.911C405.643,6.911,3.458,409.103,3.458,903.462C3.458,1397.811,405.643,1800,899.996,1800 c494.357,0,896.546-402.189,896.546-896.538C1796.542,409.103,1394.353,6.911,899.996,6.911z M899.996,1737.1 c-459.667,0-833.637-373.97-833.637-833.638c0-459.679,373.969-833.649,833.637-833.649c459.672,0,833.644,373.971,833.644,833.649 C1733.64,1363.13,1359.668,1737.1,899.996,1737.1z\"><\/path><path d=\"M1073.088,393.764v66.982c176.77,69.347,302.257,241.646,302.257,442.716 c0,262.101-213.239,475.332-475.349,475.332c-262.101,0-475.336-213.231-475.336-475.332 c0-201.075,125.491-373.374,302.261-442.725v-66.973c-212.139,72.23-365.162,273.421-365.162,509.698 c0,296.781,241.452,538.234,538.238,538.234c296.79,0,538.251-241.453,538.251-538.234 C1438.247,667.194,1285.223,466.002,1073.088,393.764z\"><\/path><path d=\"M900.004,880.287c17.371,0,31.45-14.084,31.45-31.451V286.086c0-17.371-14.079-31.451-31.45-31.451 c-17.37,0-31.45,14.08-31.45,31.451v562.749C868.554,866.202,882.634,880.287,900.004,880.287z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong><strong>Coordinated Disconnection of Multiple Roof Areas and Generator Fields<\/strong><\/strong><br\/>Coordinated disconnection of spatially separated generator fields via a common triggering instance<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-84be3ac5\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-2s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M899.996,6.911C405.643,6.911,3.458,409.103,3.458,903.462C3.458,1397.811,405.643,1800,899.996,1800 c494.357,0,896.546-402.189,896.546-896.538C1796.542,409.103,1394.353,6.911,899.996,6.911z M899.996,1737.1 c-459.667,0-833.637-373.97-833.637-833.638c0-459.679,373.969-833.649,833.637-833.649c459.672,0,833.644,373.971,833.644,833.649 C1733.64,1363.13,1359.668,1737.1,899.996,1737.1z\"><\/path><path d=\"M1073.088,393.764v66.982c176.77,69.347,302.257,241.646,302.257,442.716 c0,262.101-213.239,475.332-475.349,475.332c-262.101,0-475.336-213.231-475.336-475.332 c0-201.075,125.491-373.374,302.261-442.725v-66.973c-212.139,72.23-365.162,273.421-365.162,509.698 c0,296.781,241.452,538.234,538.238,538.234c296.79,0,538.251-241.453,538.251-538.234 C1438.247,667.194,1285.223,466.002,1073.088,393.764z\"><\/path><path d=\"M900.004,880.287c17.371,0,31.45-14.084,31.45-31.451V286.086c0-17.371-14.079-31.451-31.45-31.451 c-17.37,0-31.45,14.08-31.45,31.451v562.749C868.554,866.202,882.634,880.287,900.004,880.287z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong><strong>Large Distances Achievable<\/strong><\/strong><br\/>Reliable disconnection even with long cable runs<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-f060dedf\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-3s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M899.996,6.911C405.643,6.911,3.458,409.103,3.458,903.462C3.458,1397.811,405.643,1800,899.996,1800 c494.357,0,896.546-402.189,896.546-896.538C1796.542,409.103,1394.353,6.911,899.996,6.911z M899.996,1737.1 c-459.667,0-833.637-373.97-833.637-833.638c0-459.679,373.969-833.649,833.637-833.649c459.672,0,833.644,373.971,833.644,833.649 C1733.64,1363.13,1359.668,1737.1,899.996,1737.1z\"><\/path><path d=\"M1073.088,393.764v66.982c176.77,69.347,302.257,241.646,302.257,442.716 c0,262.101-213.239,475.332-475.349,475.332c-262.101,0-475.336-213.231-475.336-475.332 c0-201.075,125.491-373.374,302.261-442.725v-66.973c-212.139,72.23-365.162,273.421-365.162,509.698 c0,296.781,241.452,538.234,538.238,538.234c296.79,0,538.251-241.453,538.251-538.234 C1438.247,667.194,1285.223,466.002,1073.088,393.764z\"><\/path><path d=\"M900.004,880.287c17.371,0,31.45-14.084,31.45-31.451V286.086c0-17.371-14.079-31.451-31.45-31.451 c-17.37,0-31.45,14.08-31.45,31.451v562.749C868.554,866.202,882.634,880.287,900.004,880.287z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong><strong>Unambiguous Disconnection Logic Even for Complex Systems<\/strong><\/strong><br\/>Clear assignment of generator fields and disconnection areas for maximum operational safety<\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;flex-basis:50%\"><div class=\"wp-block-image q3-duotone\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"605\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-800px.webp\" alt=\"Cluster Control Box for Multiple Generator Areas\" class=\"wp-image-813\" style=\"width:auto;height:400px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-800px.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-800px-300x227.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Cluster-Steuerbox-fuer-mehrere-Generatorflaechen-800px-768x581.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-secondary\"><a class=\"wp-block-button__link has-neve-text-color-color has-text-color has-link-color wp-element-button\" href=\"https:\/\/q3-energie.de\/en\/downloads\/qfire-firefighter-switch-iec-60947-3-data-sheets\/\" style=\"border-width:1px\">Download Technical Documentation \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 id=\"die-cluster-steuerbox-erganzt-die-funktionen-der-q-fire-big-generatorfreischaltung-bei-anlagen-mit-mehreren-dachflachen-hallen-gebaudeteilen-oder-weit-verteilten-generatorfeldern-sie-fungiert-als-ubergeordnete-verteiler-und-koordinationseinheit-und-ermoglicht-eine-sternformige-anbindung-mehrerer-schaltboxen-oder-anlagensegmente-durch-die-cluster-struktur-lassen-sich-auch-grosse-und-raumlich-komplexe-pv-anlagen-zuverlassig-und-gleichzeitig-abschalten-die-abschaltlogik-bleibt-dabei-eindeutig-definiert-unabhangig-von-der-anzahl-der-angebundenen-schaltboxen-oder-der-ausdehnung-der-anlage-so-eignet-sich-das-feuerwehrschalter-q-fire-big-system-mit-cluster-steuerbox-insbesondere-fur-industrie-gewerbe-und-logistikanlagen-sowie-fur-projekte-mit-spaterem-erweiterungsbedarf\" class=\"wp-block-heading dc-card has-neve-text-color-color has-text-color has-background has-link-color wp-elements-19b18fe2746fc59f85524ecb8679db0e\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-right-style:none;border-right-width:0px;border-left-color:var(--wp--preset--color--neve-text-color);border-left-width:1px;background-color:#f5f6f79e;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);font-size:16px\">The cluster control box supplements the functions of the QFire BIG generator disconnection for systems with multiple roof areas, halls, building sections, or widely distributed generator fields. It functions as a higher-level distribution and coordination unit and enables star-configured connection of multiple switch boxes or system segments. <br><br><strong>The cluster structure allows even large and spatially complex PV systems to be shut down reliably and simultaneously. The shutdown logic remains clearly defined \u2013 regardless of the number of connected switch boxes or the overall size of the installation. This makes the QFire BIG firefighter switch system with cluster control box particularly suitable for industrial, commercial and logistics facilities, as well as for projects with future expansion requirements.  <\/strong><\/h3>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\" style=\"padding-top:var(--wp--preset--spacing--60);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--60);padding-left:var(--wp--preset--spacing--50)\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"800\" class=\"wp-block-cover__image-background wp-image-454 size-full\" alt=\"Technische Details\n\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp 1920w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-300x125.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1024x427.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-768x320.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1536x640.webp 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-text-color-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div class=\"wp-block-columns has-neve-link-color-color has-text-color has-link-color wp-elements-e2ed4184706fd6bb823f0f7ac6166303 is-layout-flex wp-container-core-columns-is-layout-98444236 wp-block-columns-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-column is-vertically-aligned-top dc-card has-nv-site-bg-color has-text-color has-background has-link-color wp-elements-44539b1c99b079190e702dcff6808a61 is-layout-flow wp-block-column-is-layout-flow\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-left-width:1px;background-color:#232323;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);flex-basis:50%\">\n<h2 id=\"auslosearten-und-schnittstellen\" class=\"wp-block-heading has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-ce548f15e81a89959125e9b6208fe8a6\" style=\"font-size:28px\">Triggering Methods and Interfaces<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-076817ab\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-cfda7200\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-toggle-off wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Disconnection via the Central Control Box<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-fd90ef59\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-toggle-off wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Connection to Fire Alarm Systems (FAS)<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-3f56a12c\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-toggle-off wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>External Emergency Stop Buttons and Key Switches<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-9ab79bd2\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-toggle-off wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>AC-Coupled Disconnection in Case of Power Failure<\/strong><\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top dc-card has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-left-color:var(--wp--preset--color--nv-text-dark-bg);border-left-width:1px;background-color:#232323;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);flex-basis:50%\">\n<h2 id=\"plug-play-installation\" class=\"wp-block-heading has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-c0a6fd09bf1c490ff5009a3bd94fa063\" style=\"border-left-color:var(--wp--preset--color--nv-text-dark-bg)\">Plug + Play Installation<\/h2>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-dd4ba0bd\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-4bf16699\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-plug wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Pre-Configured Control Connections<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-d8900dbe\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-plug wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Matching Mating Connectors Included in Delivery<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-2d9a8747\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-plug wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Pre-Wired Interfaces<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-31782d16\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-plug wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Reduced Wiring and Installation Effort<\/strong><\/p><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;min-height:942px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"800\" class=\"wp-block-cover__image-background wp-image-454 size-full\" alt=\"Technische Details\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp 1920w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-300x125.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1024x427.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-768x320.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1536x640.webp 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-nv-text-dark-bg-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<h2 class=\"wp-block-heading alignwide has-neve-text-color-color has-text-color has-link-color wp-elements-a6a7d8d60474d701adcdfa4ad8a86a02\" id=\"schaltbox\" style=\"font-size:28px\">QFire BIG PV Firefighter Safety Switch For Modular DC Shutdown with Galvanic Isolation<\/h2>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>For Safe Disconnection Up to 1,500 V DC \/ 20 A per String<\/strong><\/p>\n\n\n\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-db58c370cbdc2409068dbc199502c6f6 wp-block-paragraph\" style=\"font-size:16px\"><em>The QFire BIG firefighter switch boxes provide galvanic isolation of the PV strings directly at the generator field. They form the central DC switching function of the system and ensure safe, standards-compliant disconnection of the connected strings during shutdown.  <br><br>Through the modular design, the switch boxes can be flexibly adapted to different system structures \u2013 from small partial generators to large PV systems with multiple roof areas and high string counts.<\/em><\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide has-neve-link-color-color has-text-color has-link-color wp-elements-ff992a75fd786ab47f9dbb59637bc35f is-layout-flex wp-container-core-columns-is-layout-0fb72d45 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-center has-nv-site-bg-color has-text-color has-link-color wp-elements-a8c03b2d4bf9dc8918f0fc47475b8f53 is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;flex-basis:50%\">\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-cab3998c\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-78451501\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong><strong><strong>String Count + Modularity<\/strong><\/strong><\/strong><br\/><strong>\u25a0<\/strong> Standard 2 to 24 strings per switch box<br\/><strong>\u25a0<\/strong> Flexible string reductions possible (e.g., 8 inputs \u2192 4 outputs)<br\/><strong>\u25a0<\/strong> Expandable through combination of multiple switch boxes<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-a79dfa99\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-1s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong><strong><strong>Galvanic Isolation According to Standards<\/strong><\/strong><\/strong><br\/><strong>\u25a0<\/strong> Galvanic DC isolation of each individual string<br\/><strong>\u25a0<\/strong> Certified according to IEC \/ DIN EN 60947-3<br\/><strong>\u25a0<\/strong> Suitable for VDE-AR-E 2100-712<br\/><strong>\u25a0<\/strong> Safe DC disconnection up to 1,500 V DC \/ 20 A per string<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-081e0780\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-2s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong><strong><strong>Enclosure + Protection Rating<\/strong><\/strong><\/strong><br\/><strong>\u25a0<\/strong> Suitable for weather-protected outdoor areas<br\/><strong>\u25a0<\/strong> 2\u201316 strings: Polycarbonate enclosure, choice of gray or transparent cover, IP66 \/ IP67, IK08\u2013IK10<br\/><strong>\u25a0<\/strong> 18-24 strings: Robust sheet steel enclosure, IP66, IK10<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-f512c0d7\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-3s\"><svg viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong><strong><strong>Connectors and Connection Variants<\/strong><\/strong><\/strong><br\/><strong>\u25a0<\/strong> Standard MC4-Evo2 (St\u00e4ubli)<br\/><strong>\u25a0<\/strong> Alternatively Sunclix, Amphenol, or terminal technology<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-c6e3d7c1\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-4s\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1800 1800\" class=\"wp-block-themeisle-blocks-icon-list-item-icon-custom\"><path d=\"M900,1793.016c-2.796,0-5.594-0.375-8.315-1.125c-7.969-2.199-197.36-55.807-388.728-226.607 c-112.377-100.305-201.914-220.375-266.128-356.88c-79.987-170.042-120.543-365.937-120.543-582.248 c0-9.624,4.431-18.711,12.016-24.637L880.752,13.613c11.308-8.837,27.187-8.837,38.496,0l752.451,587.905 c7.584,5.925,12.016,15.013,12.016,24.637c0,216.312-40.559,412.206-120.546,582.248 c-64.212,136.505-153.751,256.575-266.123,356.88c-191.37,170.801-380.764,224.408-388.732,226.607 C905.592,1792.641,902.796,1793.016,900,1793.016z M178.88,641.351c3.271,367.343,125.555,661.791,363.594,875.387 C701.154,1659.123,862.076,1716.81,900,1729.049c37.924-12.239,198.846-69.926,357.525-212.311 c238.039-213.597,360.325-508.044,363.592-875.387L900,77.925L178.88,641.351z\"><\/path><path d=\"M900,1593.533c-2.798,0-5.594-0.375-8.315-1.125c-6.189-1.71-153.319-43.35-301.636-175.734 c-87.095-77.732-156.485-170.791-206.251-276.582c-61.928-131.65-93.328-283.236-93.328-450.545 c0-9.624,4.432-18.711,12.017-24.637L880.752,213.1c11.308-8.834,27.187-8.839,38.496,0l578.266,451.81 c7.585,5.925,12.017,15.013,12.017,24.637c0,167.309-31.399,318.895-93.329,450.545 c-49.762,105.791-119.155,198.85-206.248,276.582c-148.316,132.385-295.446,174.024-301.64,175.734 C905.596,1593.158,902.798,1593.533,900,1593.533z M353.087,704.725c3.256,278.249,96.237,501.402,276.493,663.417 c118.248,106.279,238.227,150.755,270.42,161.38c32.193-10.625,152.172-55.101,270.42-161.38 c180.256-162.016,273.236-385.169,276.495-663.417L900,277.412L353.087,704.725z\"><\/path><\/svg><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong><strong><strong><strong>Surge Protection &#038; PV Fuses (Optional)<\/strong><\/strong><\/strong><\/strong><br\/><strong>\u25a0<\/strong> Optional integrated Q3 DC surge protection T1+T2 up to 1,500 V DC, other manufacturers available on request<br\/><strong>\u25a0<\/strong> Optional PV fuses in positive and\/or negative pole<\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;flex-basis:50%\">\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large q3-duotone\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" data-id=\"1690\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-24-Strings-und-Ueberspannungsschutz.webp\" alt=\"QFire BIG Firefighter Switch Box with 24 Strings and Surge Protection\" class=\"wp-image-1690\" style=\"object-fit:cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-24-Strings-und-Ueberspannungsschutz.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-24-Strings-und-Ueberspannungsschutz-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-24-Strings-und-Ueberspannungsschutz-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-24-Strings-und-Ueberspannungsschutz-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full q3-duotone\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" data-id=\"320\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire_Feuerwehrschalter_Feld_400px.png\" alt=\"QFire Firefighter Switch Fuses in positive and negative poles Surge protection T1+2 integrated Sheet steel enclosure for industrial environments All cable entries from below \u2014 clean &amp; protected cable handling Made in Germany \u2014 developed &amp; built by Q3 ENERGIE\" class=\"wp-image-320\" style=\"object-fit:cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire_Feuerwehrschalter_Feld_400px.png 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire_Feuerwehrschalter_Feld_400px-300x300.png 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire_Feuerwehrschalter_Feld_400px-150x150.png 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n<\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-thumbnail q3-duotone\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" data-id=\"315\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire_Feuerwehrschalter_8-Strings_800px-150x150.webp\" alt=\"QFire BIG Firefighter Switch for 8 Strings with Surge Protection T1+2\" class=\"wp-image-315\" style=\"object-fit:cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire_Feuerwehrschalter_8-Strings_800px-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire_Feuerwehrschalter_8-Strings_800px-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire_Feuerwehrschalter_8-Strings_800px-768x768.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/QFire_Feuerwehrschalter_8-Strings_800px.webp 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-medium q3-duotone\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-id=\"1693\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-16-Strings-300x300.webp\" alt=\"QFire BIG Firefighter Switch Box with 16 Strings\" class=\"wp-image-1693\" style=\"object-fit:cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-16-Strings-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-16-Strings-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-16-Strings-768x768.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Feuerwehrschalter-QFire-BIG-Schaltbox-mit-16-Strings.webp 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/figure>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-secondary\"><a class=\"wp-block-button__link has-neve-text-color-color has-text-color has-link-color wp-element-button\" href=\"https:\/\/q3-energie.de\/en\/downloads\/qfire-firefighter-switch-iec-60947-3-data-sheets\/\" style=\"border-width:1px\">Download Technical Documentation \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 id=\"jede-schaltbox-des-ubernimmt-die-galvanische-trennung-der-angeschlossenen-pv-strings-direkt-am-installationsort\" class=\"wp-block-heading dc-card has-neve-text-color-color has-text-color has-background has-link-color wp-elements-c7d4c3fbe421aafbeb28ef27b716a4d2\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-right-style:none;border-right-width:0px;border-left-color:var(--wp--preset--color--neve-text-color);border-left-width:1px;background-color:#f5f6f79e;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);font-size:16px\">Each switch box in the system provides galvanic isolation of the connected PV strings directly at the installation location.<\/h3>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h2 id=\"warum-ist-der-feuerwehrschalter-q-fire-big-keine-moduloptimierer-oder-rapid-shutdown-losung\" class=\"wp-block-heading\">How does the QFire BIG differ from Module Optimizers and Rapid Shutdown Systems?<\/h2>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>QFire BIG is not a module optimizer solution and not a conventional module-level rapid shutdown solution. This distinction is important because these systems follow a different technical approach. <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Module optimizers, microinverters and MLPE systems operate directly at the individual module or module string and are often associated with power optimization, monitoring or rapid shutdown. QFire BIG is designed differently: the system disconnects PV strings close to the generator via a switch box and is designed for commercial and industrial PV systems with multiple strings, clear cable routing and a defined shutdown concept. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The focus is not on module optimization, but on safe DC string disconnection and PV generator disconnection. QFire BIG disconnects the DC strings by galvanic isolation according to IEC 60947-3 and is integrated into the project-specific system planning. <\/p>\n<\/div>\n<\/div>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-text-color-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<div class=\"wp-block-columns alignwide has-neve-text-color-background-color has-background is-layout-flex wp-container-core-columns-is-layout-5b0bc1de wp-block-columns-is-layout-flex\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-column dc-card has-background is-layout-flow wp-block-column-is-layout-flow\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;border-left-width:1px;background-color:#212121;padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--50)\">\n<h2 id=\"spezifisch\" class=\"wp-block-heading has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-02c16664105a361b8b9aba9d343ee90b\" style=\"font-size:28px\">QFire BIG PV Firefighter Safety Switch: Project-Specific Instead of Standard Solution<\/h2>\n\n\n\n<p class=\"has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-b7669473cbaf88fd24a4fe18a78824c7 wp-block-paragraph\" style=\"font-size:16px\">The QFire BIG switch boxes are designed, planned, and manufactured project-specifically. String count, connection technology, protective components, enclosure sizes, and interfaces are individually tailored to the respective system structure. <br><br>This creates not an off-the-shelf standard solution, but a technically sound, standards-compliant, and future-proof disconnection solution \u2013 Made in Germany.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull wp-duotone-unset-3\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);min-height:600px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"800\" class=\"wp-block-cover__image-background wp-image-465 size-full\" alt=\"\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background2_1920px.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background2_1920px.webp 1920w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background2_1920px-300x125.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background2_1920px-1024x427.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background2_1920px-768x320.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background2_1920px-1536x640.webp 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-nv-text-dark-bg-background-color has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:20% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"302\" height=\"293\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anzahl-Strings.webp\" alt=\"Number of Strings\" class=\"wp-image-1638 size-full\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anzahl-Strings.webp 302w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anzahl-Strings-300x291.webp 300w\" sizes=\"auto, (max-width: 302px) 100vw, 302px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 id=\"stringanzahl\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color has-medium-font-size wp-elements-40d9872bfc95fdfe61232c5d360371a7\">Number of strings<\/h3>\n\n\n\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-96f988dda040d698870e3eafaf98467b wp-block-paragraph\" style=\"font-size:16px\"><strong>\u25a0<\/strong> Switch boxes from 2 to 24 PV strings<br><strong>\u25a0<\/strong> Flexible string reductions between input and output<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-media-text is-stacked-on-mobile has-neve-text-color-color has-text-color has-link-color wp-elements-d1210f0f562d7f265b31b8e9b6d1dc1d\" style=\"grid-template-columns:20% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"302\" height=\"293\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Steckertechnik-oder-Klemmtechnik.webp\" alt=\"Connectors and Connection Variants\" class=\"wp-image-1639 size-full\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Steckertechnik-oder-Klemmtechnik.webp 302w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Steckertechnik-oder-Klemmtechnik-300x291.webp 300w\" sizes=\"auto, (max-width: 302px) 100vw, 302px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading has-text-align-left has-neve-text-color-color has-text-color has-link-color has-medium-font-size wp-elements-6c9e91c68abc8820d74fb88a5eae285b\" id=\"steckerverbinder-und-anschlussvarianten\">Connectors and Connection Variants<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\"><strong>\u25a0<\/strong> Standard: MC4-Evo2 from St\u00e4ubli<br><strong>\u25a0<\/strong> Alternatively H4, Sunclix, or terminal technology possible<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:20% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"302\" height=\"293\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/02\/Ueberspannungsschutz.webp\" alt=\"DC surge protection\" class=\"wp-image-1637 size-full\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Ueberspannungsschutz.webp 302w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Ueberspannungsschutz-300x291.webp 300w\" sizes=\"auto, (max-width: 302px) 100vw, 302px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 id=\"dc-uberspannungsschutz\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color has-medium-font-size wp-elements-b64f8265a348d389efd45f793480e1f5\">DC surge protection<\/h3>\n\n\n\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-d2361708e36618175a473d96e05f9a8e wp-block-paragraph\" style=\"font-size:16px\"><strong>\u25a0<\/strong> Optional integrated surge protection<br><strong>\u25a0<\/strong> Standard: Q3 surge protection T1+2 up to 1,500 VDC<br><strong>\u25a0<\/strong> Alternative surge protection manufacturers available on request<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column dc-card is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-media-text is-stacked-on-mobile has-neve-text-color-color has-text-color has-link-color wp-elements-6ba599f72d0608248078fc34fa3faf52\" style=\"grid-template-columns:20% auto\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"302\" height=\"293\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/02\/PV-Sicherung.webp\" alt=\"PV Fuse\" class=\"wp-image-1636 size-full\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PV-Sicherung.webp 302w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PV-Sicherung-300x291.webp 300w\" sizes=\"auto, (max-width: 302px) 100vw, 302px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading has-text-align-left has-neve-text-color-color has-text-color has-link-color has-medium-font-size wp-elements-7de04f41dd0c51ee73ce9a262ea1819a\" id=\"pv-sicherungen\">PV Fuses<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\"><strong>\u25a0<\/strong> Optional integrated PV fuses<br><strong>\u25a0<\/strong> In positive and\/or negative pole possible<\/p>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"800\" class=\"wp-block-cover__image-background wp-image-454 size-full\" alt=\"Technische Details\n\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px.webp 1920w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-300x125.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1024x427.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-768x320.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Background_1920px-1536x640.webp 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-text-color-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading alignwide has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-845a559478447371b8749af6a4f37af2\" id=\"projekt\">QFire BIG PV Firefighter Safety Switch Project Enquiry<\/h2>\n\n\n\n<div class=\"wp-block-columns alignwide has-neve-link-color-color has-text-color has-link-color wp-elements-88eacf64b97c827d7670a4fdfe0feaf7 is-layout-flex wp-container-core-columns-is-layout-0fb72d45 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column is-vertically-aligned-top has-nv-site-bg-color has-text-color has-link-color wp-elements-38ca5962506a6ce0cfa608d614c8b841 is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);flex-basis:50%\">\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\"><strong>Would you like to design the QFire BIG system for a specific project, review technical details or select the right system configuration for your PV installation?<\/strong><br><br><br>Using the inquiry form below, we collect all relevant project data in a structured and transparent manner.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50);flex-basis:50%\">\n<p class=\"has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-b4bc0d795668e0e8da2292d9bb9346f6 wp-block-paragraph\" style=\"font-size:16px\"><em>You can send wiring diagrams, string plans or other technical documents directly with your enquiry. On this basis, we review the technical project requirements, configure the QFire BIG system to suit your project and coordinate the required components. If any queries arise, we will contact you. Otherwise, you will receive a project-specific quotation.  <\/em><\/p>\n\n\n\n<div class=\"wp-block-buttons alignwide is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-67a17663 wp-block-buttons-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50 is-style-secondary\"><a class=\"wp-block-button__link has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/q3-energie.de\/en\/products\/project-inquiry\/qfire-pv-firefighter-switch\/\" style=\"border-width:1px\">Start project inquiry \u2192<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group alignfull has-nv-c-2-background-color has-background\" id=\"produkte\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-right:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-container-core-group-is-layout-e59bffbc wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns alignfull is-layout-flex wp-container-core-columns-is-layout-5b0bc1de wp-block-columns-is-layout-flex\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-column is-vertically-aligned-top animated fadeIn q3-product-card has-large-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<div class=\"wp-block-cover aligncenter has-custom-content-position is-position-bottom-center\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50)\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" class=\"wp-block-cover__image-background wp-image-1733 size-full\" alt=\"Anfrage\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anfrage.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anfrage.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anfrage-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anfrage-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-link-color-background-color has-background-dim-80 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-0255ba1e wp-block-cover-is-layout-constrained\">\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-b662513e19303f4f3ef58dc9670ff52e\" id=\"projektanfrage-feuerwehrschalter\" style=\"font-size:20px\">QFire BIG PV Firefighter Safety Switch Project Enquiry<\/h2>\n\n\n<div class=\"wp-block-image wp-duotone-unset-4\">\n<figure class=\"aligncenter size-thumbnail has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anfrage-150x150.webp\" alt=\"Inquiry\" class=\"wp-image-1733\" style=\"border-style:none;border-width:0px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anfrage-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anfrage-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anfrage.webp 400w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-21b139b466fe4902a64b6306a3b3685a wp-block-paragraph\" style=\"font-size:16px\">Project-specific enquiry for the design of the QFire system. AI-assisted review, component selection and preparation of a quotation.  <\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-container-core-buttons-is-layout-00436373 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-primary q3-card-link\"><a class=\"wp-block-button__link has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/q3-energie.de\/en\/products\/project-inquiry\/qfire-pv-firefighter-switch\/\">Start QFire Firefighter Switch Project Inquiry \u2192<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top animated fadeIn q3-product-card has-large-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<div class=\"wp-block-cover aligncenter has-custom-content-position is-position-bottom-center\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50)\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" class=\"wp-block-cover__image-background wp-image-1732 size-full\" alt=\"PDF\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PDF.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PDF.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PDF-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PDF-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-link-color-background-color has-background-dim-80 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-0255ba1e wp-block-cover-is-layout-constrained\">\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-05e0866164085ee2e84cff91f19be8e7\" id=\"technische-unterlagen-feuerwehrschalter\" style=\"font-size:20px\">Technical Documentation for QFire BIG PV Firefighter Safety Switch<\/h2>\n\n\n<div class=\"wp-block-image wp-duotone-unset-5\">\n<figure class=\"aligncenter size-thumbnail has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PDF-150x150.webp\" alt=\"PDF icon for QFire firefighter switch technical documentation\" class=\"wp-image-1732\" style=\"border-style:none;border-width:0px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PDF-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PDF-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PDF.webp 400w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-abd11a8e8b1650a7404ef4e4fdef8b3d wp-block-paragraph\" style=\"font-size:16px\">Datasheets, certificates and technical documentation for QFire BIG and QFire LITE firefighter switches, control boxes, switch boxes and accessories.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-container-core-buttons-is-layout-00436373 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-primary q3-card-link\"><a class=\"wp-block-button__link has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/q3-energie.de\/en\/downloads\/qfire-firefighter-switch-iec-60947-3-data-sheets\/\">Technical Documentation for Firefighter Switch \u2192<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top animated fadeIn q3-product-card has-large-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<div class=\"wp-block-cover aligncenter has-custom-content-position is-position-bottom-center\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50)\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"1600\" class=\"wp-block-cover__image-background wp-image-897 size-full\" alt=\"Wann ist bei einer PV Anlage ein Feuerwehrschalter Pflicht?\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend.png\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend.png 1600w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-300x300.png 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-1024x1024.png 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-150x150.png 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-768x768.png 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-1536x1536.png 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-link-color-background-color has-background-dim-80 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-0255ba1e wp-block-cover-is-layout-constrained\">\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-a5759dfe68c685a27838ba6287ada066\" id=\"funktionsweise-technik-q-fire\" style=\"font-size:20px\">How QFire BIG Works: Function and Technology<\/h2>\n\n\n<div class=\"wp-block-image wp-duotone-unset-6\">\n<figure class=\"aligncenter size-thumbnail has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-150x150.png\" alt=\"When is a firefighter switch mandatory for a PV system?\" class=\"wp-image-897\" style=\"border-style:none;border-width:0px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-150x150.png 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-300x300.png 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-1024x1024.png 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-768x768.png 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend-1536x1536.png 1536w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Wann-FWS-verpflichtend.png 1600w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-fd0acb6edb652781c53480b0246f74ea wp-block-paragraph\" style=\"font-size:16px\">Technical fundamentals of DC-side disconnection, system design, triggering methods, galvanic isolation, and standards-compliant implementation.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-container-core-buttons-is-layout-00436373 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-primary q3-card-link\"><a class=\"wp-block-button__link has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/q3-energie.de\/en\/technic\/pv-firefighter-safety-switch\/\">Functionality + Technology Firefighter Switch \u2192<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-top animated fadeIn q3-product-card has-large-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<div class=\"wp-block-cover aligncenter has-custom-content-position is-position-bottom-center\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;padding-top:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50)\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" class=\"wp-block-cover__image-background wp-image-1731 size-full\" alt=\"FAQ Feuerwehrschalter\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/FAQ-Feuerwehrschalter.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/FAQ-Feuerwehrschalter.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/FAQ-Feuerwehrschalter-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/FAQ-Feuerwehrschalter-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-neve-link-color-background-color has-background-dim-80 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-0255ba1e wp-block-cover-is-layout-constrained\">\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-42737855f32d6eb6ace5e36726eee17e\" id=\"faq-zum-thema-feuerwehrschalter\" style=\"font-size:20px\">FAQ on QFire BIG PV Firefighter Safety Switch<\/h2>\n\n\n<div class=\"wp-block-image wp-duotone-unset-7\">\n<figure class=\"aligncenter size-thumbnail has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/FAQ-Feuerwehrschalter-150x150.webp\" alt=\"Firefighter Switch FAQ\" class=\"wp-image-1731\" style=\"border-style:none;border-width:0px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/FAQ-Feuerwehrschalter-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/FAQ-Feuerwehrschalter-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/FAQ-Feuerwehrschalter.webp 400w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-34414513f6ce6f0b4643668b8004ff01 wp-block-paragraph\" style=\"font-size:16px\">Answers to frequently asked questions about application, standards, triggering concepts, mandatory requirements, and operation of firefighter switches in PV systems.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-container-core-buttons-is-layout-00436373 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-primary q3-card-link\"><a class=\"wp-block-button__link has-medium-font-size has-custom-font-size wp-element-button\" href=\"https:\/\/q3-energie.de\/en\/knowledge\/faq-pv-firefighter-switch\/\">FAQ on Firefighter Switches \u2192<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"373\" class=\"wp-block-cover__image-background wp-image-3303 size-large\" alt=\"\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/03\/Presse-1024x373.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Presse-1024x373.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Presse-300x109.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Presse-768x280.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Presse-1536x560.webp 1536w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Presse.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-nv-text-dark-bg-background-color has-background-dim-100 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-b164b6e8 wp-block-columns-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--70);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--70);padding-left:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--50)\">\n<h2 class=\"wp-block-heading has-text-align-left has-neve-text-color-color has-text-color has-link-color wp-elements-556546fa71bcdfb9701f6f8f94aff0c1\" style=\"font-size:28px\">Fachbeitr\u00e4ge &amp; Pressemeldungen zum Feuerwehrschalter f\u00fcr Photovoltaik<\/h2>\n\n\n\n<p class=\"has-text-align-left has-neve-text-color-color has-text-color has-link-color wp-elements-c288400474a0ae9f5f91b5fdcabf8d8f wp-block-paragraph\" style=\"font-size:16px\">Der Einsatz von Feuerwehrschaltern in Photovoltaik-Anlagen wird in der Branche intensiv diskutiert \u2013 insbesondere im Hinblick auf Sicherheit, Normung und Einsatz im Brandfall. Hier finden Sie ausgew\u00e4hlte Fachberichte, Branchenmeldungen und technische Einordnungen.<\/p>\n\n\n\n<div class=\"press-links\">\n\n<a href=\"https:\/\/www.solarserver.de\/2025\/01\/29\/wann-ist-ein-feuerwehrschalter-bei-photovoltaik-anlagen-notwendig\/\" target=\"_blank\" class=\"press-item\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/04\/solarserver-logo-042d89.svg\" alt=\"\" title=\"\">\n<h3>Wann ist ein Feuerwehrschalter bei Photovoltaik-Anlagen notwendig?<\/h3>\n<span class=\"press-arrow\">\u2192<\/span>\n<\/a>\n\n<a href=\"https:\/\/www.elektro.net\/125702\/generatorfreischaltung-mit-dem-feuerwehrschalter\/\" target=\"_blank\" class=\"press-item\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/04\/logo-elektro-net-2d5199.svg\" alt=\"\" title=\"\">\n<h3>Generatorfreischaltung mit dem Feuerwehrschalter<\/h3>\n<span class=\"press-arrow\">\u2192<\/span>\n<\/a>\n\n<a href=\"https:\/\/www.pv-magazine.de\/unternehmensmeldungen\/q3-pv-feuerwehrschalter-qfire-erhaelt-zertifizierung-nach-iec-60947-3-angebot-planerschulung\/\" target=\"_blank\" class=\"press-item\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/03\/logo.webp\" alt=\"\" title=\"\">\n<h3>Q3 PV-Feuerwehrschalter \u201eQFire\u201c erh\u00e4lt Zertifizierung nach IEC 60947-3 <\/h3>\n<span class=\"press-arrow\">\u2192<\/span>\n<\/a>\n\n<a href=\"https:\/\/www.pv-magazine.de\/unternehmensmeldungen\/qfire-pv-feuerwehrschalter-schulung-praxisnahe-schulung-fuer-planer-und-installateure\/\" target=\"_blank\" class=\"press-item\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/03\/logo.webp\" alt=\"\" title=\"\">\n<h3>QFire PV Feuerwehrschalter Schulung: Praxisnahe Schulung f\u00fcr Planer und Installateure<\/h3>\n<span class=\"press-arrow\">\u2192<\/span>\n<\/a>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>String-Level Remote DC Disconnection for Large PV Systems QFire BIG is a string-based, remotely controllable DC disconnection solution for commercial and industrial PV systems designed in accordance with IEC requirements. The system is designed for rooftop PV systems, industrial buildings, logistics roofs and complex photovoltaic installations where multiple PV strings, long DC cable routes or&hellip;&nbsp;<\/p>\n","protected":false},"author":1,"featured_media":8509,"parent":7284,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":"","_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-7519","page","type-page","status-publish","has-post-thumbnail","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/comments?post=7519"}],"version-history":[{"count":31,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7519\/revisions"}],"predecessor-version":[{"id":9469,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7519\/revisions\/9469"}],"up":[{"embeddable":true,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7284"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/media\/8509"}],"wp:attachment":[{"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/media?parent=7519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}