{"id":7470,"date":"2026-01-29T15:07:13","date_gmt":"2026-01-29T14:07:13","guid":{"rendered":"https:\/\/q3-energie.de\/pv-connection-technology-products-firefighter-switches-generator-junction-boxes-ac-dc-boxes\/pv-generator-connection-box-gak-custom-built-up-to-1500-v-dc-q3\/"},"modified":"2026-07-21T18:23:07","modified_gmt":"2026-07-21T16:23:07","slug":"custom-dc-combiner-boxes","status":"publish","type":"page","link":"https:\/\/q3-energie.de\/en\/products\/custom-dc-combiner-boxes\/","title":{"rendered":"PV Combiner Box (GCB) | Custom up to 1,500 V DC | Q3"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull\" style=\"min-height:603px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" class=\"wp-block-cover__image-background wp-image-2889 size-full\" alt=\"\u00dcberspannungsschutz Generatoranschlusskasten GAK 3 MPP Tracker\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/02\/Ueberspannungsschutz-Generatoranschlusskasten-GAK-3-MPP-Tracker.webp\" style=\"object-position:50% 40%\" data-object-fit=\"cover\" data-object-position=\"50% 40%\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Ueberspannungsschutz-Generatoranschlusskasten-GAK-3-MPP-Tracker.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Ueberspannungsschutz-Generatoranschlusskasten-GAK-3-MPP-Tracker-300x225.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Ueberspannungsschutz-Generatoranschlusskasten-GAK-3-MPP-Tracker-768x576.webp 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-80 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-cd2aa2f2 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:0;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=\"kundenspezifischer-generatoranschlusskasten-gak-fur-pv-anlagen-bis-1-500-v-dc\">Custom Combiner Box (GCB)<br>for PV systems up to 1,500 V DC<\/h1>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-left has-nv-text-dark-bg-color has-text-color\" id=\"keine-standardprodukte-individuell-ausgelegte-dc-combiner-und-pv-stringboxen-fur-gewerbe-industrie-und-pv-kraftwerksanlagen\" style=\"font-size:18px\"><strong>No off-the-shelf products: custom-engineered DC combiner boxes and PV string combiner solutions for commercial, industrial and utility-scale photovoltaic systems. <\/strong><\/h2>\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=\"#individuell\" 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)\">Individually configured GCB \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=\"#schutz\" 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)\">Protection and Safety Concept \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=\"#monitoring\" 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)\">Monitoring Options \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=\"#eignung\" 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)\">Which DC Combiner Solution is Right? \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 data-wp-context=\"{&quot;imageId&quot;:&quot;6a6fe127ad9c7&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a6fe127ad9c7\" class=\"aligncenter size-full is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Generatoranschlusskaesten-GAK-DC-Combiner-DC-Anschlusstechnik-PV.webp\" alt=\"Generator Connection Boxes GAK - DC Combiner - DC Connection Technology PV\" class=\"wp-image-2476\" style=\"width:400px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Generatoranschlusskaesten-GAK-DC-Combiner-DC-Anschlusstechnik-PV.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Generatoranschlusskaesten-GAK-DC-Combiner-DC-Anschlusstechnik-PV-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Generatoranschlusskaesten-GAK-DC-Combiner-DC-Anschlusstechnik-PV-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Generatoranschlusskaesten-GAK-DC-Combiner-DC-Anschlusstechnik-PV-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/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-af73d2b5ae3320fa8ca17d5f8cfd15e6\" id=\"rank-math-toc\"><h2>Auf dieser Seite<\/h2><nav><ul><li class=\"\"><a href=\"#einsatzbereiche-der-q-3-generatoranschlusskasten-gak\">PV DC combiner boxes: typical applications<\/a><\/li><li class=\"\"><a href=\"#individuell\">Custom-Engineered DC Combiner Boxes for PV Systems<\/a><\/li><li class=\"\"><a href=\"#schutz\">Protection and safety concepts for generator junction boxes and DC combiner solutions<\/a><\/li><li class=\"\"><a href=\"#monitoring\">Monitoring options for PV string boxes and DC combiners<\/a><\/li><li class=\"\"><a href=\"#eignung\">Which PV Systems Are Custom DC Combiner Boxes Suitable For?<\/a><\/li><li class=\"\"><a href=\"#l\u00f6sung\">Which DC combiner solution fits your project?<\/a><\/li><li class=\"\"><a href=\"#deutschland\">Design, manufacturing and testing in Germany<\/a><\/li><li class=\"\"><a href=\"#projekt-2\">Project inquiry DC connection technology | Generator connection box (GAK)<\/a><\/li><li class=\"\"><a href=\"#technische-unterlagen-dc-anschlusstechnik\">Technical documents DC connection technology<\/a><\/li><li class=\"\"><a href=\"#gak-lite-standardlosung-3\">GAK LITE standard solution<\/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 class=\"wp-block-heading has-text-align-left has-neve-text-color-color has-text-color has-link-color wp-elements-60683320edc473796bd3577142c9add9\" id=\"einsatzbereiche-der-q-3-generatoranschlusskasten-gak\">PV DC combiner boxes: typical applications <\/h2>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-left has-neve-text-color-color has-text-color has-link-color wp-elements-981d02397d9344f1d36c8c8ce46af29d\" id=\"keine-standardprodukte-individuell-ausgelegte-dc-combiner-und-pv-stringboxen-fur-gewerbe-industrie-und-pv-kraftwerksanlagen-1\" style=\"font-size:16px\">No off-the-shelf products: custom-engineered DC combiner boxes and PV string combiner solutions for commercial, industrial and utility-scale photovoltaic systems. <\/h3>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">Protection concept, connection technology, enclosure design and monitoring functions are individually configured for each project \u2013 including standards-compliant design and documented testing.<br>Custom DC combiner boxes are particularly suitable for PV systems with complex layouts, high string counts or project-specific protection requirements.<\/p>\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-7666b7a909d8c79bc4a66c991f4eb503 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-483f302f\" 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 c0,1.169,0.136,2.303,0.197,3.459c2.071,37.474,37.214,67.426,80.245,67.426h384.74c17.405,0,31.512-14.108,31.512-31.513v-548.771 h339.125v548.771c0,17.404,14.107,31.513,31.512,31.513h384.74c43.031,0,78.174-29.952,80.244-67.426 c0.063-1.156,0.198-2.29,0.198-3.459v-894.17C1566.259,815.042,1552.151,800.935,1534.746,800.935z\"><\/path><path d=\"M1073.253,782.176c0-95.411-77.624-173.04-173.04-173.04s-173.04,77.628-173.04,173.04 c0,95.416,77.624,173.04,173.04,173.04S1073.253,877.592,1073.253,782.176z M790.198,782.176 c0-60.663,49.352-110.016,110.016-110.016s110.015,49.353,110.015,110.016c0,60.664-49.352,110.016-110.015,110.016 S790.198,842.84,790.198,782.176z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<h3 id=\"gewerbe-und-industrieanlagen-mit-hoher-stringdichte\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-2552ba573c8ae5aeba8eedfae4ed59a7\" style=\"font-size:16px\"><strong><strong>Commercial and industrial PV systems with high string density<\/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-6dd84367\" 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=\"pv-anlagen-mit-komplexen-dachstrukturen-oder-mehreren-generatorfeldern\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-8d8f7e65409f43759a5f46177a17755a\" style=\"font-size:16px\"><strong><strong>PV systems with complex roof layouts or multiple generator fields<\/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-c5caa0ff\" 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 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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=\"erweiterbare-pv-projekte-im-phasenbau-oder-mw-bereich\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-4328a9246ad4ef10b9cf6d8741009c34\" style=\"font-size:16px\"><strong><strong>Expandable PV projects for phased construction or utility-scale applications<\/strong><\/strong><\/h3>\n<\/div>\n<\/div><\/div>\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 class=\"wp-block-heading alignwide\" id=\"individuell\">Custom-Engineered DC Combiner Boxes for PV Systems<\/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-cd2aa2f2 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50)\">\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)\">\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\"><em>A DC combiner box \u2013 also referred to internationally as a PV string combiner box \u2013 bundles multiple PV strings per MPPT and integrates project-specific protection, disconnect and monitoring functions.<\/em><\/p>\n\n\n\n<h3 id=\"im-gegensatz-zu-standardisierten-stringboxen-wird-jede-q-3-dc-anschlussbox-individuell-ausgelegt-exakt-abgestimmt-auf-ihr-anlagenkonzept\" class=\"wp-block-heading has-nv-text-dark-bg-color has-neve-text-color-background-color has-text-color has-background has-link-color wp-elements-4e48f99558c8b7e8b3407b578cacf599\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;font-size:16px\"><strong><strong>Unlike standard off-the-shelf string combiner boxes, every Q3 DC combiner box is individually engineered and precisely matched to the specific PV system design.<\/strong><\/strong><\/h3>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-921c3e08\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-245f74a5\" 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\"><strong><strong>String count per MPPT and module type<\/strong><\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-b72bc4d7\" 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\"><strong><strong>System voltages up to 1,500 V DC<\/strong><\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-ec206619\" 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\"><strong><strong>Short-circuit current (Isc) and reverse current requirements<\/strong><\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-9df992cd\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-3s\"><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\"><strong><strong>Selection of PV string fuses or blocking diodes<\/strong><\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-6e38d2db\" class=\"wp-block-themeisle-blocks-icon-list-item animated fadeInLeft delay-4s\"><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\"><strong><strong><strong>Protection and monitoring requirements<\/strong><\/strong><\/strong><\/p><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center 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-right-color:var(--nv-text-dark-bg);border-right-width:1px;border-left-color:var(--nv-text-color);border-left-width:1px;background-color:#f5f6f799;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<h3 id=\"q-3-ist-kein-kataloganbieter-sondern-entwicklungspartner-fur-dc-anschlusstechnik\" class=\"wp-block-heading\" style=\"font-size:20px\"><strong>Q3 is not a catalogue supplier \u2013 but an engineering partner for DC connection technology.<\/strong><\/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\" style=\"font-size:16px\">Q3 DC combiner boxes are designed project-by-project and configured according to string count, system voltage, protection concept and monitoring requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Whether standard PV string combiner boxes or complex DC combiner solutions with integrated protection and disconnect functions \u2013 every system is individually engineered, manufactured and electrically tested.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">The focus is on straightforward integration, clearly defined configurations and cost-efficient implementation while maintaining standards-compliant system design.<\/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<p class=\"has-text-align-center has-neve-link-color-color has-text-color has-link-color has-large-font-size wp-elements-9bb4db7c7217995dce90f24577a88989 wp-block-paragraph\"><strong>Geplant. Gefertigt. Gepr\u00fcft. Made in Germany.   <\/strong><\/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-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=\"800\" height=\"800\" class=\"wp-block-cover__image-background wp-image-387 size-full\" alt=\"Super Multi Box DC Combiner f\u00fcr Freifeld und Agri PV mit Zentralwechselrichter - patentierte L\u00f6sung inklusive PV String Fehler Diskriminator und Feuerwehrschalter. Kundenspezifisch gebaut.\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px.webp\" style=\"object-position:10% 85%\" data-object-fit=\"cover\" data-object-position=\"10% 85%\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><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<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 class=\"wp-block-heading alignwide has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-1937e7d40bf5e289f979580b3919313b\" id=\"projekt\">Project-Specific Design of DC Combiner Box Solutions<\/h2>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide are-vertically-aligned-center has-neve-link-color-color has-text-color has-link-color wp-elements-55ab2cdaf0ebf3d4698329bcadfb4584 is-layout-flex wp-container-core-columns-is-layout-915739b4 wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--30);padding-bottom:0;padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-column is-vertically-aligned-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-d7f6dd9f829ff601e21a62eb191434f9 is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--20);padding-bottom:0;padding-left:var(--wp--preset--spacing--20);flex-basis:50%\">\n<figure class=\"wp-block-table ticss-b64683f3 is-style-regular\"><table class=\"has-nv-site-bg-color has-neve-text-color-background-color has-text-color has-background has-link-color\" style=\"border-top-style:none;border-top-width:0px;border-bottom-style:none;border-bottom-width:0px;border-left-style:none;border-left-width:0px\"><tbody><tr><td>Max. system voltage<\/td><td>1,500 V DC<\/td><\/tr><tr><td>Rated insulation voltage<\/td><td>1,500 V DC<\/td><\/tr><tr><td>Max. switching current per string (Isc) <\/td><td>up to 20 A<\/td><\/tr><tr><td>Strings per MPPT input<\/td><td>1-24<\/td><\/tr><tr><td>Strings per MPPT output<\/td><td>1-24<\/td><\/tr><tr><td>Number of MPPT <\/td><td>1-24<\/td><\/tr><tr><td>Fuse links<\/td><td>Fuses +\/- (optional)<\/td><\/tr><tr><td>Diodes<\/td><td>Diodes +\/- (optional)<\/td><\/tr><tr><td>Surge protection<\/td><td>Type 1+2 (optional)<\/td><\/tr><tr><td>Connection technology input <\/td><td>MC4-EVO2 or terminals<\/td><\/tr><tr><td>Connection technology output<\/td><td>MC4-EVO2 or terminals<\/td><\/tr><tr><td>DC switch-disconnectors<\/td><td>Optional<\/td><\/tr><tr><td>Enclosure<\/td><td>Polycarbonate or sheet steel<\/td><\/tr><tr><td>Degree of protection<\/td><td>Up to IP67<\/td><\/tr><tr><td>Installation location<\/td><td>Sheltered outdoor area<\/td><\/tr><tr><td>Normative Framework<\/td><td>IEC 61439-2, IEC 61439-1, IEC 61643-31, EN 50539-11<\/td><\/tr><tr><td>Additional options<\/td><td>String current measurement, monitoring, status messages, and much more.<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center dc-card has-nv-site-bg-color has-text-color has-link-color wp-elements-ad6873551e9ee8e03bcbf521dd832a1b 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;padding-top:var(--wp--preset--spacing--40);padding-right:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--50);flex-basis:50%\">\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Our custom-engineered DC combiner boxes are individually designed according to the specific PV system layout \u2013 from commercial rooftop systems to utility-scale solar plants.<br><br>During system design, parameters such as string count, system voltage (up to 1,500 V DC), short-circuit currents (Isc), reverse current conditions, as well as the required protection and monitoring concept are taken into account.<br><\/p>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Typical Design Parameters:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">\u25a0 High string density per inverter<br><br><br>\u25a0 Parallel connection of multiple generator fields<br><br><br>\u25a0 Segmented roof and system structures<br><br><br>\u25a0 Integration into monitoring and control systems<br><br><br>\u25a0 Consideration of short-circuit and reverse currents<\/p>\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-cover\" style=\"min-height:240px;aspect-ratio:unset;\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-nv-c-2-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 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=\"generatoranschlusskasten-baukastensystem-flexibel-konfiguriert\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-ac1ec462c0ec7b6234e45eaaa83987e5\">Generator connection box modular system \u2013 flexibly configured<\/h2>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-bottom is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-bottom is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:75%\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-c33e43a66161ed57ff96f88dff982d0f wp-block-paragraph\">Your order code \u2013 how we configure your generator connection box<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"940\" height=\"164\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/06\/Ihr-Bestellschluessel-\u2013-So-konfigurieren-wir-Ihren-Generatoranschlusskasten.webp\" alt=\"Order code for generator connection box (GAK) \u2013 configuration of MPPT, strings, fuses, surge protection and DC isolator switch for photovoltaic systems\" class=\"wp-image-8282\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/06\/Ihr-Bestellschluessel-\u2013-So-konfigurieren-wir-Ihren-Generatoranschlusskasten.webp 940w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/06\/Ihr-Bestellschluessel-\u2013-So-konfigurieren-wir-Ihren-Generatoranschlusskasten-300x52.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/06\/Ihr-Bestellschluessel-\u2013-So-konfigurieren-wir-Ihren-Generatoranschlusskasten-768x134.webp 768w\" sizes=\"auto, (max-width: 940px) 100vw, 940px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\" style=\"font-size:18px\"><table class=\"has-neve-text-color-color has-text-color has-link-color\" style=\"border-style:none;border-width:0px\"><tbody><tr><td>\ud83d\udd35 <strong><strong>1<\/strong><\/strong><\/td><td><strong>Product type | Number of MPPT<\/strong><\/td><td>Generator connection box | 1-24<\/td><\/tr><tr><td>\ud83d\udd35 <strong>2<\/strong><\/td><td><strong>Strings per MPPT input<\/strong><\/td><td>1-24<\/td><\/tr><tr><td>\ud83d\udd35 <strong>3<\/strong><\/td><td><strong>Fuses + | Diodes + | empty<\/strong><\/td><td>F+ = fuses plus | D+ = diodes plus | 00 = none<\/td><\/tr><tr><td>\ud83d\udd35 <strong>4<\/strong><\/td><td><strong>Fuses &#8211; | Diodes &#8211; | empty<\/strong><\/td><td>F- = fuses minus | D- = diodes minus | 00 = none<\/td><\/tr><tr><td>\ud83d\udd35 <strong>5<\/strong><\/td><td><strong>Strings per MPPT output<\/strong><\/td><td>1-24<\/td><\/tr><tr><td>\ud83d\udd35 <strong>6<\/strong><\/td><td><strong>Input technology<\/strong><\/td><td>MC = MC4-EVO2 | KL = terminal technology<\/td><\/tr><tr><td>\ud83d\udd35 <strong>7<\/strong><\/td><td><strong>Output technology<\/strong><\/td><td>MC = MC4-EVO2 | KL = terminal technology<\/td><\/tr><tr><td>\ud83d\udd35 <strong>8<\/strong><\/td><td><strong>Surge protection<\/strong><\/td><td>00 = without SPD | 12 = SPD Type 1+2<\/td><\/tr><tr><td>\ud83d\udd35 <strong>9<\/strong><\/td><td><strong>Options<\/strong><\/td><td>SW = with DC isolator switch <br>IM = with string current measurement<br>SW-IM = with DC isolator switch and string current measurement<br>IM-MO = string current measurement with monitoring<\/td><\/tr><\/tbody><\/table><\/figure>\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=\"flex-basis:25%\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/q3-energie.de\/en\/products\/project-inquiry\/dc-combiner\/\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/06\/Anfrage-Generatoranschlusskasten-GAK.webp\" alt=\"Configure the inquiry form for generator connection box (GAK) and send a project inquiry for photovoltaic systems\" class=\"wp-image-8291\" style=\"width:200px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/06\/Anfrage-Generatoranschlusskasten-GAK.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/06\/Anfrage-Generatoranschlusskasten-GAK-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/06\/Anfrage-Generatoranschlusskasten-GAK-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/06\/Anfrage-Generatoranschlusskasten-GAK-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n<figure class=\"wp-block-table is-style-stripes\" style=\"font-size:18px\"><table class=\"has-neve-link-color-color has-text-color has-link-color\" style=\"border-style:none;border-width:0px\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Example configuration<br>G4.3.F+.00.1.MC.KL.12.SW<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">GAK for 4 MPPT<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3 strings per MPPT input<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Fuses in the plus<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">No fuses\/diodes in the minus<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1 string per MPPT output<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><a href=\"https:\/\/www.staubli.com\/de\/de\/home.html\" target=\"_blank\" rel=\"noopener\">MC4-EVO2<\/a> on the input<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Terminal technology on the output<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Surge protection Type 1+2<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">With DC isolator switch<\/td><\/tr><\/tbody><\/table><\/figure>\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-3165 size-large\" alt=\"Freifeldanlagen und PV-Kraftwerke im MW-Bereich\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Freifeldanlage--1024x373.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Freifeldanlage--1024x373.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Freifeldanlage--300x109.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Freifeldanlage--768x280.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Freifeldanlage--1536x560.webp 1536w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Freifeldanlage-.webp 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><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-block-cover-is-layout-constrained\">\n<div style=\"height:70px\" 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-ad4afbe1 wp-block-columns-is-layout-flex\" style=\"padding-right:var(--wp--preset--spacing--40);padding-left:var(--wp--preset--spacing--40)\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<h2 id=\"ersatz-fur-bestehende-generatoranschlusskasten\" class=\"wp-block-heading\">Replacement for existing generator junction boxes<\/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\">Generator junction boxes are not only required for new PV projects. In existing solar parks and PV portfolios, older junction boxes, string boxes or DC combiners also need to be replaced as part of maintenance or refurbishment work. <\/p>\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:#004d9987;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)\"><strong>For this purpose, Q3 manufactures custom replacement solutions that match the existing string cabling, connection logic, mounting position and protection concept. This allows existing DC structures to be continued in a targeted way without unnecessary system modifications. <\/strong><\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\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<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<figure class=\"wp-block-image size-full q3-duotone\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Bestandssituation-vor-dem-Austausch-bei-aelteren-PV-Anlagen-muessen-Ersatzloesungen-mechanisch-und-elektrisch-zur-vorhandenen-Installation-passen-e1784279325391.webp\" alt=\"Replacement PV generator junction box in a solar park for an existing ground-mounted PV system\" class=\"wp-image-9096\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Bestandssituation-vor-dem-Austausch-bei-aelteren-PV-Anlagen-muessen-Ersatzloesungen-mechanisch-und-elektrisch-zur-vorhandenen-Installation-passen-e1784279325391.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Bestandssituation-vor-dem-Austausch-bei-aelteren-PV-Anlagen-muessen-Ersatzloesungen-mechanisch-und-elektrisch-zur-vorhandenen-Installation-passen-e1784279325391-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Bestandssituation-vor-dem-Austausch-bei-aelteren-PV-Anlagen-muessen-Ersatzloesungen-mechanisch-und-elektrisch-zur-vorhandenen-Installation-passen-e1784279325391-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full q3-duotone\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Die-vorhandene-Leitungsfuehrung-im-Solarpark-wurde-bei-der-Auslegung-der-Ersatzloesung-beruecksichtigt.webp\" alt=\"Replacement PV generator junction box with adapted cable routing for an existing solar park.\" class=\"wp-image-9091\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Die-vorhandene-Leitungsfuehrung-im-Solarpark-wurde-bei-der-Auslegung-der-Ersatzloesung-beruecksichtigt.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Die-vorhandene-Leitungsfuehrung-im-Solarpark-wurde-bei-der-Auslegung-der-Ersatzloesung-beruecksichtigt-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Die-vorhandene-Leitungsfuehrung-im-Solarpark-wurde-bei-der-Auslegung-der-Ersatzloesung-beruecksichtigt-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Die-vorhandene-Leitungsfuehrung-im-Solarpark-wurde-bei-der-Auslegung-der-Ersatzloesung-beruecksichtigt-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full q3-duotone\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Praxisbeispiel-Solarpark-Suedwestpfalz-Q3-ENERGIE-liefert-passgenaue-Ersatz-Generatoranschlusskaesten-fuer-den-langfristigen-Anlagenbetrieb.webp\" alt=\"Custom-built PV generator junction box installed under PV modules as a replacement solution in an existing solar park.\" class=\"wp-image-9093\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Praxisbeispiel-Solarpark-Suedwestpfalz-Q3-ENERGIE-liefert-passgenaue-Ersatz-Generatoranschlusskaesten-fuer-den-langfristigen-Anlagenbetrieb.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Praxisbeispiel-Solarpark-Suedwestpfalz-Q3-ENERGIE-liefert-passgenaue-Ersatz-Generatoranschlusskaesten-fuer-den-langfristigen-Anlagenbetrieb-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Praxisbeispiel-Solarpark-Suedwestpfalz-Q3-ENERGIE-liefert-passgenaue-Ersatz-Generatoranschlusskaesten-fuer-den-langfristigen-Anlagenbetrieb-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/07\/Praxisbeispiel-Solarpark-Suedwestpfalz-Q3-ENERGIE-liefert-passgenaue-Ersatz-Generatoranschlusskaesten-fuer-den-langfristigen-Anlagenbetrieb-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n<\/div>\n<\/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-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 is-style-primary\"><a class=\"wp-block-button__link wp-element-button\" href=\"View replacement generator junction box in a solar park \u2192\">View replacement generator junction box in a solar park \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 has-neve-text-color-color has-text-color has-link-color wp-elements-3515977c7c55987304891c34439fad15\" id=\"schutz\" style=\"font-size:28px\">https:\/\/q3-energie.de\/en\/replacement-pv-generator-junction-boxes-for-solar-parks\/<\/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 alignwide has-neve-link-color-color has-text-color has-link-color wp-elements-65fd69cb44c8f1e27ee065af4598e500 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-69ca7e0f9554fbd10ca96eaf9b8e4969 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<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-276a64407acf7a44569c543748001243 wp-block-paragraph\" style=\"font-size:16px\">A generator connection box (GAK) or DC combiner is far more than just a string combiner box.<\/p>\n\n\n\n<p class=\"has-nv-text-dark-bg-color has-neve-text-color-background-color has-text-color has-background has-link-color wp-elements-45bf0f18c02fb53466be9b80d29f91cc wp-block-paragraph\" style=\"border-top-left-radius:8px;border-top-right-radius:8px;border-bottom-left-radius:8px;border-bottom-right-radius:8px;font-size:16px\"><strong>It performs key protection, isolation and monitoring functions on the PV generator side \u2013 matched to the number of strings, system voltage and reverse-current conditions.<\/strong><\/p>\n\n\n\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-d55dba2b3f06b3583ba5b64df855e858 wp-block-paragraph\" style=\"font-size:16px\"><em>Typical protection and safety functions:<\/em><\/p>\n\n\n\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-a1a9eb95\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-1c7b3c61\" 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>String Fuses or Blocking Diodes<\/strong><br\/>Protection of individual PV strings in parallel string configurations. Designed according to module technology and permissible reverse current. <br><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-99881ec3\" 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>Reverse Current Protection for Parallel Strings<\/strong><br\/>Prevention of impermissible equalization and fault currents between generator fields.<br><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-66dba75a\" 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>DC Surge Protection Type 1+2<br\/><\/strong>Coordinated lightning and surge protection according to the system design and lightning protection zone.<\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-482740f5\" 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>Potential-Free Remote Signaling Contact<\/strong><br\/>Status indication of fuses or SPD modules to monitoring or control systems.<br><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-ce9c9e61\" 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=\"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>DC Isolator Switch according to IEC 60947-3<\/strong><br\/>Standards-compliant all-pole isolation for maintenance and service work.<\/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:var(--wp--preset--spacing--80);padding-bottom:0;padding-left:var(--wp--preset--spacing--80);flex-basis:50%\">\n<div class=\"wp-block-group is-layout-grid wp-container-core-group-is-layout-549e1f2d wp-block-group-is-layout-grid\"><div class=\"wp-block-image q3-duotone\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a6fe127b75ae&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a6fe127b75ae\" class=\"aligncenter size-medium wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Batterie-Anschlussbox-fuer-500-A-V-DC-300x300.webp\" alt=\"Battery connection box for 500 A DC\" class=\"wp-image-6048\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Batterie-Anschlussbox-fuer-500-A-V-DC-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Batterie-Anschlussbox-fuer-500-A-V-DC-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Batterie-Anschlussbox-fuer-500-A-V-DC.webp 400w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n<div class=\"wp-block-image q3-duotone\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a6fe127b850e&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a6fe127b850e\" class=\"aligncenter size-medium wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PV-Anschlussbox-mit-Dioden-fuer-Duennschichtmodule-300x300.webp\" alt=\"PV connection box with diodes for thin-film modules\" class=\"wp-image-2931\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PV-Anschlussbox-mit-Dioden-fuer-Duennschichtmodule-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PV-Anschlussbox-mit-Dioden-fuer-Duennschichtmodule-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PV-Anschlussbox-mit-Dioden-fuer-Duennschichtmodule-768x768.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/PV-Anschlussbox-mit-Dioden-fuer-Duennschichtmodule.webp 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" 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data-wp-key=\"6a6fe127b9443\" class=\"aligncenter size-medium wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/DC-Combiner-Box-300x300.webp\" alt=\"DC Combiner Box\" class=\"wp-image-2929\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/DC-Combiner-Box-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/DC-Combiner-Box-150x150.webp 150w, 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title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Generatoranschlusskasten-Ueberspannungsschutz-PV-Anschlussbox-fuer-6-MPPT-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Generatoranschlusskasten-Ueberspannungsschutz-PV-Anschlussbox-fuer-6-MPPT-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Generatoranschlusskasten-Ueberspannungsschutz-PV-Anschlussbox-fuer-6-MPPT.webp 400w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n<div class=\"wp-block-image q3-duotone\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a6fe127bb730&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a6fe127bb730\" class=\"aligncenter size-medium wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Q3-Produktion2-300x300.webp\" alt=\"\" class=\"wp-image-3277\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Q3-Produktion2-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Q3-Produktion2-1024x1024.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Q3-Produktion2-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Q3-Produktion2-768x768.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Q3-Produktion2-1536x1536.webp 1536w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/03\/Q3-Produktion2-2048x2048.webp 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n<div class=\"wp-block-image q3-duotone\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a6fe127bc7f5&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a6fe127bc7f5\" class=\"aligncenter size-medium wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anschlussbox-Sicherungen-300x300.webp\" alt=\"Connection box fuses\" class=\"wp-image-2933\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anschlussbox-Sicherungen-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anschlussbox-Sicherungen-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anschlussbox-Sicherungen-768x768.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Anschlussbox-Sicherungen.webp 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div><\/div>\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=\"800\" height=\"800\" class=\"wp-block-cover__image-background wp-image-387 size-full\" alt=\"Super Multi Box DC Combiner f\u00fcr Freifeld und Agri PV mit Zentralwechselrichter - patentierte L\u00f6sung inklusive PV String Fehler Diskriminator und Feuerwehrschalter. Kundenspezifisch gebaut.\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_800px-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><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 style=\"height:50px\" 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-45f13c92c1c150eb1f3a8e1805de394b 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-c037a8a7fe80dedeeb05066343a7228a 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=\"monitoring\" class=\"wp-block-heading has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-68b4aa15d1c4163702f15716b1099fab\">Monitoring options for PV string boxes and DC combiners<\/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\">Depending on the project requirements, the following functions can be integrated:<\/p>\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\"><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>Individual string current monitoring<\/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\"><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>Status monitoring of SPD modules<\/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\"><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>Centralised status and fault signals<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-c8225a29\" class=\"wp-block-themeisle-blocks-icon-list-item\"><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>Interfaces for SCADA systems or plant controllers<\/strong><\/p><\/div>\n<\/div>\n\n\n\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/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: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%\"><div class=\"wp-block-image q3-duotone\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a6fe127be3e2&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a6fe127be3e2\" class=\"aligncenter size-medium wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_400px-300x300.webp\" alt=\"Super Multi Box DC Combiner for open-field and agri PV with central inverter \u2013 patented solution including PV string fault discriminator and firefighter switch. Custom-built. \" class=\"wp-image-386\" style=\"object-fit:cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_400px-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_400px-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_400px.webp 400w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 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\/smart-dc-combiner\/\" style=\"border-width:1px\">View intelligent monitoring \u2192<\/a><\/div>\n<\/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 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:#004d9991;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=\"has-nv-site-bg-color has-text-color has-link-color wp-elements-1d3bcbdab3c3f552e4342d58745ed0f1 wp-block-paragraph\" style=\"font-size:16px\">The monitoring functions described here are intended for status and current monitoring on string or component level. <br><br><strong>For applications requiring active fault discrimination, automatic string shutdown or advanced analysis functions (e.g. identification of faulty strings during operation), we recommend the DC Combiner Super Multi Box with integrated PV string fault discriminator. <\/strong><br><br>This means the custom-built DC combiner box remains the flexible solution for conventional monitoring and protection requirements, while the Super Multi Box has been specifically developed for intelligent fault detection and operational optimisation in utility-scale PV systems.<\/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<h2 id=\"eignung\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-eb34104f05245f3f044f09077bc709ea\">Which PV Systems Are Custom DC Combiner Boxes Suitable For?<\/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 alignwide has-neve-text-color-color has-text-color has-link-color wp-elements-70f08b56e5b1a8d2cc7762c76e6eb388 is-layout-flex wp-container-core-columns-is-layout-4c3d31c9 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:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column dc-card has-nv-light-bg-background-color has-background 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<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-5d127027\" class=\"wp-block-themeisle-blocks-font-awesome-icons animated zoomIn delay-500ms\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><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 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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 c0,1.169,0.136,2.303,0.197,3.459c2.071,37.474,37.214,67.426,80.245,67.426h384.74c17.405,0,31.512-14.108,31.512-31.513v-548.771 h339.125v548.771c0,17.404,14.107,31.513,31.512,31.513h384.74c43.031,0,78.174-29.952,80.244-67.426 c0.063-1.156,0.198-2.29,0.198-3.459v-894.17C1566.259,815.042,1552.151,800.935,1534.746,800.935z\"><\/path><path d=\"M1073.253,782.176c0-95.411-77.624-173.04-173.04-173.04s-173.04,77.628-173.04,173.04 c0,95.416,77.624,173.04,173.04,173.04S1073.253,877.592,1073.253,782.176z M790.198,782.176 c0-60.663,49.352-110.016,110.016-110.016s110.015,49.353,110.015,110.016c0,60.664-49.352,110.016-110.015,110.016 S790.198,842.84,790.198,782.176z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-medium-font-size\" id=\"gewerbe-und-logistikdacher\"><strong><strong>Commercial and logistics rooftop PV systems<\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-column dc-card has-nv-light-bg-background-color 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;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<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-18e95918\" class=\"wp-block-themeisle-blocks-font-awesome-icons animated zoomIn delay-500ms\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><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<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-medium-font-size\" id=\"industrieanlagen-mit-komplexen-dachstrukturen\"><strong><strong>Industrial PV systems with complex roof structures<\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-column dc-card has-nv-light-bg-background-color 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;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<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-b2ebf0ca\" class=\"wp-block-themeisle-blocks-font-awesome-icons animated zoomIn delay-500ms\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M1627.938,384.003c-12.13-17.064-24.856-33.673-38.118-49.817 C1425.985,134.806,1177.596,7.414,900.004,7.414c-277.596,0-525.985,127.392-689.825,326.772 c-13.27,16.144-25.988,32.752-38.122,49.817C68.421,529.789,7.417,707.905,7.417,899.997c0,193.195,61.719,372.25,166.447,518.491 c12.194,17.021,24.947,33.613,38.277,49.705c163.849,198.021,411.368,324.393,687.863,324.393 c276.49,0,524.014-126.371,687.858-324.393c13.326-16.092,26.084-32.684,38.273-49.705 c104.725-146.241,166.447-325.296,166.447-518.491C1792.583,707.905,1731.583,529.789,1627.938,384.003z M1538.661,370.69 c-14.208,9.139-29.117,18.046-44.792,26.668c-46.543,25.601-97.693,47.778-152.398,66.383 c-21.347-67.829-47.821-130.984-79.089-187.832c-39.409-71.671-84.575-129.96-133.772-173.723 C1291.124,148.828,1433.377,243.88,1538.661,370.69z M1359.744,643.08c9.006,0,17.533,2.022,25.231,5.559 c20.911,9.604,35.502,30.696,35.502,55.178c0,18.967-8.748,35.919-22.413,47.063c-10.46,8.528-23.799,13.666-38.32,13.666 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M868.646,951.916 c-7.745-4.698-14.38-11.041-19.362-18.588c-6.316-9.578-10.017-21.015-10.017-33.331c0-10.654,2.78-20.67,7.625-29.388 c5.154-9.285,12.693-17.039,21.754-22.529c9.165-5.559,19.878-8.82,31.358-8.82s22.185,3.261,31.359,8.82 c9.061,5.49,16.6,13.244,21.754,22.529c4.846,8.717,7.625,18.734,7.625,29.388c0,12.316-3.709,23.753-10.025,33.331 c-4.975,7.547-11.609,13.89-19.354,18.588c-9.174,5.559-19.879,8.82-31.359,8.82S877.811,957.475,868.646,951.916z M931.363,1727.753v-455.679c123.342,2.462,241.87,19.354,349.077,49.267c-4.858,15.224-9.961,30.223-15.356,44.921 c-4.953-0.619-9.982-0.964-15.099-0.964c-68.065,0-123.445,55.385-123.445,123.454c0,31.746,12.052,60.729,31.818,82.63 C1091.523,1662.669,1013.33,1716.737,931.363,1727.753z M1128.592,1697.831c28.923-25.73,56.435-56.503,82.217-92.035 c12.319,4.13,25.49,6.411,39.189,6.411c68.062,0,123.446-55.386,123.45-123.455c-0.004-40.635-19.745-76.734-50.14-99.247 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class=\"wp-block-heading has-text-align-center has-medium-font-size\" id=\"freiflachenanlagen-agri-pv\"><strong><strong>Ground-mounted PV systems | Agri-PV<\/strong><\/strong><\/h3>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns alignwide has-neve-text-color-color has-text-color has-link-color wp-elements-d6154501da31f71239b870cf9c24a05b is-layout-flex wp-container-core-columns-is-layout-4c3d31c9 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:0;padding-right:0;padding-bottom:0;padding-left:0\">\n<div class=\"wp-block-column dc-card has-nv-light-bg-background-color has-background 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<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-b74e47f2\" class=\"wp-block-themeisle-blocks-font-awesome-icons animated zoomIn delay-500ms\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><svg viewbox=\"0 0 1800 1800\"><path d=\"M890.431,974.791c69.867,0,126.714-56.838,126.714-126.704c0-69.867-56.847-126.705-126.714-126.705 c-69.867,0-126.7,56.838-126.7,126.705C763.73,917.953,820.564,974.791,890.431,974.791z M890.431,782.932 c35.933,0,65.163,29.226,65.163,65.155c0,35.928-29.23,65.159-65.163,65.159c-35.928,0-65.154-29.231-65.154-65.159 C825.276,812.158,854.503,782.932,890.431,782.932z\"><\/path><path d=\"M1393.528,849.313c107.104-90.789,190.083-183.293,228.049-264.898c-9.547,1.934-19.43,2.959-29.544,2.959 c-13.436,0-26.451-1.824-38.848-5.184c-20.757,36.129-52.147,77.005-93.216,120.522c-33.35,35.331-71.835,71.25-114.557,107.113 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M1575.478,1233.455c-15.097,26.848-58.443,41.64-122.053,41.64 c-80.558,0-185.769-22.52-302.777-63.091c9.73-63.95,16.813-131.012,21.18-199.063c61.001-39.634,119.51-81.404,173.311-123.996 c42.827,35.946,81.417,71.944,114.841,107.362C1557.614,1099.769,1600.795,1188.42,1575.478,1233.455z\"><\/path><path d=\"M323.685,429.749c0-70.146-57.069-127.211-127.215-127.211c-70.142,0-127.207,57.064-127.207,127.211 c0,70.142,57.065,127.211,127.207,127.211C266.616,556.96,323.685,499.891,323.685,429.749z M131.817,429.749 c0-35.649,29.003-64.657,64.653-64.657c35.653,0,64.661,29.008,64.661,64.657c0,35.649-29.008,64.657-64.661,64.657 C160.82,494.406,131.817,465.398,131.817,429.749z\"><\/path><path d=\"M1603.526,302.538c-70.146,0-127.211,57.064-127.211,127.211c0,70.142,57.064,127.211,127.211,127.211 c70.146,0,127.211-57.069,127.211-127.211C1730.737,359.603,1673.672,302.538,1603.526,302.538z M1603.526,494.406 c-35.653,0-64.657-29.008-64.657-64.657c0-35.649,29.004-64.657,64.657-64.657s64.656,29.008,64.656,64.657 C1668.183,465.398,1639.18,494.406,1603.526,494.406z\"><\/path><path d=\"M892.983,1541.145c-70.142,0-127.206,57.064-127.206,127.211s57.064,127.211,127.206,127.211 c70.15,0,127.22-57.064,127.22-127.211S963.134,1541.145,892.983,1541.145z M892.983,1733.013 c-35.649,0-64.652-29.003-64.652-64.657c0-35.652,29.003-64.656,64.652-64.656c35.658,0,64.666,29.004,64.666,64.656 C957.649,1704.01,928.642,1733.013,892.983,1733.013z\"><\/path><\/svg><\/span><\/div>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-medium-font-size\" id=\"pv-kraftwerke-im-mw-bereich\"><strong><strong><strong>PV Power Plants in the MW Range<\/strong><\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-column dc-card has-nv-light-bg-background-color 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;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<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-ee0ab103\" class=\"wp-block-themeisle-blocks-font-awesome-icons animated zoomIn delay-500ms\"><span class=\"wp-block-themeisle-blocks-font-awesome-icons-container nan-padding\"><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 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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<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-medium-font-size\" id=\"hohe-stringdichten-pro-mpp-tracker\"><strong><strong><strong>High string densities per MPPT tracker<\/strong><\/strong><\/strong><\/h3>\n<\/div>\n\n\n\n<div class=\"wp-block-column dc-card has-nv-light-bg-background-color 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;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<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-font-awesome-icons-167122c7\" class=\"wp-block-themeisle-blocks-font-awesome-icons animated zoomIn delay-500ms\"><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<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-align-center has-medium-font-size\" id=\"projekte-mit-individuellen-schutz-oder-erdungskonzepten\"><strong><strong><strong>Projects with customised protection or grounding concepts<\/strong><\/strong><\/strong><\/h3>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\" style=\"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=\"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<div class=\"wp-block-columns alignwide has-neve-link-color-color has-text-color has-link-color wp-elements-ebf2034a480c83b5a192f75325323934 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-4ebfcd39f59a40aa61f377a587c402e1 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:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-0325118fbbf594e0d440370da415ad80 wp-block-paragraph\" style=\"font-size:16px\"><strong>Custom-engineered DC combiner boxes \u2013 internationally often referred to as DC combiner boxes or PV string combiner boxes \u2013 bundle multiple PV strings per MPPT tracker in a standards-compliant way and integrate project-specific protection, isolation and monitoring functions.<\/strong><\/p>\n\n\n\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-529d7f961fa8248ae5891405e6dc68cd wp-block-paragraph\" style=\"font-size:16px\"><br>Whether commercial rooftop PV systems, industrial installations or utility-scale solar plants:<br>Q3 DC combiner solutions are precisely designed according to string count, system voltage up to 1,500 V DC, short-circuit currents (Isc) and reverse current conditions. Compared to standardised solutions, this results in a DC connection box that:  <\/p>\n\n\n\n<h3 id=\"\u25a0-technisch-prazise-dimensioniert-ist-\u25a0-unnotige-uberdimensionierung-vermeidet-\u25a0-normgerecht-integriert-werden-kann-\u25a0-langfristig-wartungs-und-betriebssicher-ausgelegt-ist\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-ef7ab0429ce8767869b5429aba56bd41\" style=\"font-size:16px\">\u25a0 is technically dimensioned with precision<br><br><br>\u25a0 avoids unnecessary oversizing<br><br><br>\u25a0 can be integrated in a standards-compliant manner<br><br><br>\u25a0 is designed for long-term operational reliability and serviceability<\/h3>\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:var(--wp--preset--spacing--80);padding-bottom:0;padding-left:var(--wp--preset--spacing--80);flex-basis:50%\"><div class=\"wp-block-image q3-duotone\">\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;6a6fe127c1c37&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"6a6fe127c1c37\" class=\"aligncenter size-full is-resized wp-lightbox-container\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on--pointerdown=\"actions.preloadImage\" data-wp-on--pointerenter=\"actions.preloadImageWithDelay\" data-wp-on--pointerleave=\"actions.cancelPreload\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Generatoranschlusskasten-Artikel-G6.32.F.00.1.KL_.KL_.00_2-1.webp\" alt=\"Generator connection box (GAK) for photovoltaic systems with string fuses and terminal technology for combining multiple PV strings \" class=\"wp-image-6556\" style=\"width:300px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Generatoranschlusskasten-Artikel-G6.32.F.00.1.KL_.KL_.00_2-1.webp 800w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Generatoranschlusskasten-Artikel-G6.32.F.00.1.KL_.KL_.00_2-1-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Generatoranschlusskasten-Artikel-G6.32.F.00.1.KL_.KL_.00_2-1-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/05\/Generatoranschlusskasten-Artikel-G6.32.F.00.1.KL_.KL_.00_2-1-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\tdata-wp-bind--aria-label=\"state.thisImage.triggerButtonAriaLabel\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.thisImage.buttonRight\"\n\t\t\tdata-wp-style--top=\"state.thisImage.buttonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n<\/div><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading alignwide dc-card has-neve-text-color-color has-text-color has-background has-link-color wp-elements-f1b9f8150a10cbfe553c7dc7818fa779\" id=\"damit-ist-der-kundenspezifische-gak-die-ideale-losung-fur-anspruchsvolle-pv-anlagen-mit-hoher-stringdichte-speziellen-erdungs-oder-schutzkonzepten-sowie-komplexen-generatorstrukturen\" 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\"><strong>This makes the custom-engineered DC combiner box the ideal solution for demanding PV systems with high string density, special grounding or protection concepts, and complex generator structures.<\/strong><\/h3>\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 decoding=\"async\" class=\"wp-block-cover__image-background wp-image-2475 size-full\" alt=\"DC-Anschlusstechnik PV - Generatoranschlussk\u00e4sten - DC Combiner\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/02\/DC-Anschlusstechnik-PV-Generatoranschlusskaesten-DC-Combiner.webp\" data-object-fit=\"cover\" title=\"\"><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-4a40759677bfca547f8a50458a6bbff2\" id=\"l\u00f6sung\" style=\"font-size:28px\">Which DC combiner solution fits your project?<\/h2>\n\n\n\n<div class=\"wp-block-columns alignwide has-neve-link-color-color has-text-color has-link-color wp-elements-74ea22ef76e2fcb1b52eefaf9a705e62 is-layout-flex wp-container-core-columns-is-layout-89d5057d wp-block-columns-is-layout-flex\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:0;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-link-color wp-elements-a1d90fe97cfefc5d69e204c9ac65d80c 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:0;padding-left:var(--wp--preset--spacing--50);flex-basis:33.34%\">\n<h3 class=\"wp-block-heading has-text-align-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-3bcaa30a05f3a35dd4a80364c78effca\" id=\"kundenspezifischer-gak-dc-combiner\">Custom String Combiner Box<br>DC Combiner<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\" style=\"font-size:16px\"><em>Individually planned DC combiner box for PV systems up to 1,500 V DC<\/em> <em>&#8211; ideal for technically demanding commercial, industrial, and PV power plant systems<\/em><\/p>\n\n\n<div class=\"wp-block-image q3-duotone\">\n<figure class=\"aligncenter size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/DC-Combiner-Box-300x300.webp\" alt=\"DC Combiner Box - generator connection box for photovoltaic systems with string fuses and terminal technology for combining multiple PV strings\" class=\"wp-image-2929\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/DC-Combiner-Box-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/DC-Combiner-Box-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/DC-Combiner-Box-768x768.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/DC-Combiner-Box.webp 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/div>\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>Freely configurable<\/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>Project-specific protection concepts<\/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>Individual number of strings<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-e8e20a7c\" 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>Integration of monitoring options possible<\/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>From single projects to series production<\/strong><\/p><\/div>\n<\/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=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50);flex-basis:33.34%\">\n<h3 class=\"wp-block-heading has-text-align-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-98b25eaf6689ad7cff2c9fc57e10c7a0\" id=\"gak-lite-standardlosung\">GAK LITE<br>Standard Solution<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-align-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-fd0e20f8b8c1ee168dc82b3b8a8c83f4 wp-block-paragraph\" style=\"font-size:16px\"><em>Standardized string box for 1 | 2 | 3 MPPT with surge protection &#8211; for projects with clearly defined standard requirements<\/em><\/p>\n\n\n<div class=\"wp-block-image q3-duotone\">\n<figure class=\"aligncenter size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-Generatoranschlusskasten-300x300.webp\" alt=\"GAK LITE generator connection box for PV systems in various sizes and versions\" class=\"wp-image-2949\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-Generatoranschlusskasten-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-Generatoranschlusskasten-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-Generatoranschlusskasten-768x768.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-Generatoranschlusskasten.webp 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/div>\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-da131684\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-5db060c1\" 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>Pre-assembled generator junction boxes<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-12cabe8a\" 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>Economical series solution<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-165851f6\" 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>Clearly defined standard variants<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-078e83eb\" 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>Fast availability<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-85567753\" 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>Ideal for recurring system concepts<\/strong><\/p><\/div>\n<\/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--50);padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50);flex-basis:33.33%\">\n<h3 class=\"wp-block-heading has-text-align-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-046321bde51d128dbf17b6f54bc9da5a\" id=\"super-multi-box-intelligenter-dc-combiner\">Super Multi Box<br>Intelligent DC Combiner<\/h3>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-align-center has-nv-text-dark-bg-color has-text-color has-link-color wp-elements-339c898d1a13318e43b80d23c6914bac wp-block-paragraph\" style=\"font-size:16px\"><em>Smart DC combiner with active fault detection<\/em> &#8211; developed for <em>large-scale systems with advanced analysis and optimization requirements<\/em><\/p>\n\n\n<div class=\"wp-block-image q3-duotone\">\n<figure class=\"aligncenter size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_400px-300x300.webp\" alt=\"Super Multi Box DC Combiner for open-field and agri PV with central inverter \u2013 patented solution including PV string fault discriminator and firefighter switch. Custom-built. \" class=\"wp-image-386\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_400px-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_400px-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/01\/Super_Multi_Box_400px.webp 400w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/figure>\n<\/div>\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-e51a17cc\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-50d1378d\" 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>Intelligent DC Combiner<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-e97a4786\" 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>Patented PV String Fault Discrimination<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-619c13c8\" 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>Automatic shutdown of faulty strings<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-b8416cd6\" 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>Integrated individual string monitoring<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-e7d60714\" 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>Communication interfaces<\/strong> <strong>(e.g., Modbus, Ethernet)<\/strong><\/p><\/div>\n<\/div>\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-6db11fc5746404f9e260b46f920fd698 is-layout-flex wp-container-core-columns-is-layout-822b08ab wp-block-columns-is-layout-flex\" style=\"padding-top:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-column is-vertically-aligned-top has-nv-site-bg-color has-text-color has-link-color wp-elements-495dfd77dfdbbdc20f1d40942a41c550 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:33.34%\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 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\/technic\/pv-firefighter-safety-switch\/\" style=\"border-width:1px\">Custom DC Combiner \u2192<\/a><\/div>\n<\/div>\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:0;padding-right:var(--wp--preset--spacing--50);padding-bottom:0;padding-left:var(--wp--preset--spacing--50);flex-basis:33.34%\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 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\/lite-dc-combiner\/\" style=\"border-width:1px\">LITE DC Combiner \u2192<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column 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:33.33%\">\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button has-custom-width wp-block-button__width-100 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\/smart-dc-combiner\/\" style=\"border-width:1px\">DC Combiner Super Multi Box \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<div class=\"wp-block-cover alignfull\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0\"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"800\" class=\"wp-block-cover__image-background wp-image-465 size-full\" alt=\"Technischer Hintergrund\" 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-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 alignwide are-vertically-aligned-center has-neve-link-color-color has-text-color has-link-color wp-elements-fe83a8634d4dd43b8d0a04b637b8aef3 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-27bec591048ea46b7560328cdaa52861 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=\"deutschland\" class=\"wp-block-heading has-neve-text-color-color has-text-color has-link-color wp-elements-7356ddcaa6dc49572627e81b084f3d5e\">Design, manufacturing and testing in Germany<\/h2>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-d3a896f7193ef17fff37916ea1c30160 wp-block-paragraph\" style=\"font-size:16px\">Every Q3 custom DC combiner box is individually engineered, manufactured and electrically tested \u2013 entirely at our production site in Germany.<\/p>\n\n\n\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-45b76913\" class=\"wp-block-themeisle-blocks-icon-list\">\n<div id=\"wp-block-themeisle-blocks-icon-list-item-bc81b1ad\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-drafting-compass wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>custom electrical design<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-2a996481\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-drafting-compass wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>designed to standards up to 1,500 V DC<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-87328568\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-drafting-compass wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Fully electrically tested<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-8d3153c3\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-drafting-compass wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Transparently documented<\/strong><\/p><\/div>\n\n\n\n<div id=\"wp-block-themeisle-blocks-icon-list-item-010fb36c\" class=\"wp-block-themeisle-blocks-icon-list-item\"><i class=\"fas fa-drafting-compass wp-block-themeisle-blocks-icon-list-item-icon-custom\"><\/i><p class=\"wp-block-themeisle-blocks-icon-list-item-content-custom\"><strong>Tested with test report<\/strong><br><\/p><\/div>\n<\/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-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 has-custom-width wp-block-button__width-100 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\/technical-downloads-dc-connection-technology-for-photovoltaic-systems\/\" style=\"border-width:1px\">Download technical documents for DC Combiner \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\" 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 class=\"wp-block-group is-layout-grid wp-container-core-group-is-layout-3532dad8 wp-block-group-is-layout-grid\" 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<figure class=\"wp-block-image size-full has-custom-border q3-duotone wp-duotone-unset-1\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-GAK-DC-Combiner-Feuerwehrschalter.webp\" alt=\"Q3 production generator junction box GAK DC combiner firefighter switch\" class=\"has-border-color wp-image-3043\" style=\"border-color:var(--nv-c-2);border-width:5px;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-left-radius:10px;border-bottom-right-radius:10px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-GAK-DC-Combiner-Feuerwehrschalter.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-GAK-DC-Combiner-Feuerwehrschalter-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-GAK-DC-Combiner-Feuerwehrschalter-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border is-style-default q3-duotone wp-duotone-unset-2\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-DC-Combiner-GAK.webp\" alt=\"Q3 production interior view prepared surge protection for generator connection box DC combiner GAK\" class=\"has-border-color wp-image-3042\" style=\"border-color:var(--nv-c-2);border-width:5px;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-left-radius:10px;border-bottom-right-radius:10px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-DC-Combiner-GAK.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-DC-Combiner-GAK-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-DC-Combiner-GAK-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border q3-duotone wp-duotone-unset-3\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-GAK-DC-Combiner.webp\" alt=\"Interior view generator connection box GAK - DC combiner with surge protection in terminal technology\" class=\"has-border-color wp-image-3044\" style=\"border-color:var(--nv-c-2);border-width:5px;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-left-radius:10px;border-bottom-right-radius:10px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-GAK-DC-Combiner.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-GAK-DC-Combiner-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-Generatoranschlusskasten-GAK-DC-Combiner-150x150.webp 150w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border q3-duotone wp-duotone-unset-4\"><img loading=\"lazy\" decoding=\"async\" width=\"1848\" height=\"1848\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-AC-Boxen.webp\" alt=\"Q3 Production AC Boxes\" class=\"has-border-color wp-image-3041\" style=\"border-color:var(--nv-c-2);border-width:5px;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-left-radius:10px;border-bottom-right-radius:10px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-AC-Boxen.webp 1848w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-AC-Boxen-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-AC-Boxen-1024x1024.webp 1024w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-AC-Boxen-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-AC-Boxen-768x768.webp 768w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Q3-Produktion-AC-Boxen-1536x1536.webp 1536w\" sizes=\"auto, (max-width: 1848px) 100vw, 1848px\" \/><\/figure>\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 id=\"haufige-planungsfragen-zu-generatoranschlusskasten\" class=\"wp-block-heading\">Common planning questions about generator connection boxes<\/h2>\n\n\n\n<div class=\"wp-block-cover alignwide is-light has-neve-text-color-color has-text-color has-link-color wp-elements-8514047058a65c4b0296c09ceb17e38f\" style=\"padding-top:var(--wp--preset--spacing--50);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--50);padding-left:var(--wp--preset--spacing--20)\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-nv-text-dark-bg-background-color has-background-dim-0 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div id=\"wp-block-themeisle-blocks-accordion-1e20aca1\" class=\"wp-block-themeisle-blocks-accordion icon-first has-icon has-open-icon has-dark-content-bg has-dark-title-bg has-light-active-title-bg ticss-8e791480 is-style-default\">\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>Can a generator junction box be combined with a firefighter switch?<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-dc05e463514eff1f427645991835e1a9 wp-block-paragraph\" style=\"font-size:18px\">Yes. Depending on the system concept, a PV generator junction box can be combined with a DC-side shutdown solution such as the QFire firefighter switch. The junction box handles string bundling, surge protection and, if required, fusing, while QFire provides generator-side galvanic isolation of the PV strings. <br><br><\/p>\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 has-custom-width wp-block-button__width-50 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\/technic\/pv-firefighter-safety-switch\/\" style=\"border-width:1px\"><strong>QFire PV firefighter switch \u2192<\/strong><\/a><\/div>\n\n\n\n<div class=\"wp-block-button has-custom-width wp-block-button__width-50 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\/products\/qfire-big-pv-firefighter-safety-switch\/\" style=\"border-width:1px\"><strong>QFire BIG firefighter switch \u2192<\/strong><\/a><\/div>\n<\/div>\n<\/div><\/details>\n\n\n\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>How is it determined whether string fuses are required?<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-53ebb8256f8af9f6c489d620c43be50d wp-block-paragraph\" style=\"font-size:18px\">The need for string fuses depends on the number of strings connected in parallel and the permissible reverse-current values of the PV modules used. The decisive factors are the module manufacturer specifications and the maximum possible reverse currents within the generator field. When designing, both the short-circuit current (Isc) and the number of parallel generator strings are taken into account.  <\/p>\n<\/div><\/details>\n\n\n\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>When are blocking diodes used instead of string fuses?<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-b0033d91bd57b5c23aa4bcb6fdaeaed3 wp-block-paragraph\" style=\"font-size:18px\">Blocking diodes are used when reverse currents between generator fields need to be prevented. In modern photovoltaic systems, string fuses are often used. Whether diodes are useful or required depends on the specific system architecture and the specifications of the inverter or system manufacturer.  <\/p>\n<\/div><\/details>\n\n\n\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>How is the number of surge protective devices determined?<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-2eaf1c80475dbc5f7b87d8ba0be82314 wp-block-paragraph\" style=\"font-size:18px\">The number of surge protective devices is generally based on the number of MPP trackers and the selected protection concept of the system. In many applications, a separate SPD is provided per MPP tracker. The final design is project-specific, based on the system structure and cable routing.  <\/p>\n<\/div><\/details>\n\n\n\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>Can different string counts per MPPT be implemented within one generator junction box?<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-72863676a1cc2215c9c0a35518a3ae97 wp-block-paragraph\" style=\"font-size:18px\">Yes. Generator connection boxes are designed on a project-specific basis and can take different string counts per MPPT into account. This also makes it possible to combine complex generator fields with different roof areas, orientations or module layouts within one system.  <\/p>\n<\/div><\/details>\n\n\n\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>Which information is required for the technical design?<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-e04b2824048ee9dcf884895e5ee1752b wp-block-paragraph\" style=\"font-size:18px\">For a fast and reliable design, the string plan, inverter type, number of MPPT, string allocation per MPPT and module data are particularly helpful. In addition, information on short-circuit current (Isc), the desired protection concept and the connection technology is required. <\/p>\n<\/div><\/details>\n\n\n\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>Can MC4-EVO2 connectors and terminal technology be combined within one project?<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-e04b2824048ee9dcf884895e5ee1752b wp-block-paragraph\" style=\"font-size:18px\">For a fast and reliable design, the string plan, inverter type, number of MPPT, string allocation per MPPT and module data are particularly helpful. In addition, information on short-circuit current (Isc), the desired protection concept and the connection technology is required. <\/p>\n<\/div><\/details>\n\n\n\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>From which string count does a sheet-steel enclosure make sense?<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-b5bc3757a1f33ab2aece37f6db3b3dd1 wp-block-paragraph\" style=\"font-size:18px\">This depends less on the number of strings than on the overall component setup. Additional fuses, surge protective devices, isolator switches or monitoring components increase the space requirement. For larger generator connection boxes, sheet steel enclosures are therefore often used.  <\/p>\n<\/div><\/details>\n\n\n\n<details class=\"wp-block-themeisle-blocks-accordion-item\"><summary class=\"wp-block-themeisle-blocks-accordion-item__title\"><div>Can generator junction boxes be designed for central inverters?<\/div><\/summary><div class=\"wp-block-themeisle-blocks-accordion-item__content\">\n<p class=\"has-neve-text-color-color has-text-color has-link-color wp-elements-b874e9bb1fe8a2de5a81f673a52b53a2 wp-block-paragraph\" style=\"font-size:18px\">For very large systems with high string counts, advanced monitoring or the requirement for string-level fault detection, an intelligent DC combiner solution can make more sense than a classic generator connection box. For such applications, we offer the <a href=\"https:\/\/q3-energie.de\/en\/products\/smart-dc-combiner\/\" data-type=\"page\" data-id=\"2851\">Super Multi Box (SMB)<\/a>, a smart DC combiner box with integrated string monitoring, communication interfaces and project-specific protection and switching functions. <\/p>\n<\/div><\/details>\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\"><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-80 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-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-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-4cf52101dd39e30987f8f19e80507517\" style=\"font-size:28px\">Fachmedien und Presseberichte zur Q3 DC-Anschlusstechnik: Generatoranschlusskasten, DC-Combiner, Stringboxen<\/h2>\n\n\n\n<div class=\"press-links\">\n\n<a href=\"https:\/\/www.pv-magazine.de\/2025\/05\/21\/q3-energie-string-combiner-box-mit-innovativer-fehlersuch-funktion\/\" 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>String-Combiner-Box mit innovativer Fehlersuch-Funktion<\/h3>\n<span class=\"press-arrow\">\u2192<\/span>\n<\/a>\n\n<a href=\"https:\/\/www.50komma2.de\/erneuerbare-speicher\/fehlererkennung-auf-string-ebene\/\" target=\"_blank\" class=\"press-item\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/03\/50komma2-LogoClaim_680x454px-e1772629910583.webp\" alt=\"\" title=\"\">\n<h3>Fehlererkennung auf String-Ebene<\/h3>\n<span class=\"press-arrow\">\u2192<\/span>\n<\/a>\n\n<a href=\"https:\/\/www.presseportal.de\/pm\/101238\/6026302\" target=\"_blank\" class=\"press-item\" rel=\"noopener\">\n<img decoding=\"async\" src=\"https:\/\/neu.q3-energie.de\/wp-content\/uploads\/2026\/03\/Presseportal_Logo.webp\" alt=\"\" title=\"\">\n<h3>Intelligente Combiner Box mit integrierter Sicherheitsl\u00f6sung<\/h3>\n<span class=\"press-arrow\">\u2192<\/span>\n<\/a>\n\n<\/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-cfefe9e55cb00f3376a39fb890a6c684\" id=\"projekt-2\">Project inquiry DC connection technology | Generator connection box (GAK)<\/h2>\n\n\n\n<div class=\"wp-block-columns alignwide has-neve-link-color-color has-text-color has-link-color wp-elements-717b2c9eb47311fbca1ed29151566be4 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-e7c0123b351f7b4fce921ab5651b77ba 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 a generator connection box (GAK) or a DC combiner box on a project-specific basis, have technical details checked, or define the optimal string and protection configuration for your PV system?<\/strong><br><br>Using the inquiry form below, we capture all relevant project data in a structured and traceable way \u2013 from the number of strings to the desired monitoring integration.<\/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-4e77ab8e158d9bed5f64d1f426f507e9 wp-block-paragraph\" style=\"font-size:16px\"><em><em>You are welcome to send data sheets, circuit diagrams, string plans, Isc values, grounding or protection concepts directly with your inquiry. You will then receive a project-specific DC combiner solution or an individually configured generator connection box. If any questions arise, we will coordinate the details directly with you.  <\/em><\/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\/dc-combiner\/\" 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-529309536730881b1b10c561d11f396a\" id=\"projektanfrage-gak-dc-combiner\" style=\"font-size:20px\">Project inquiry GAK | DC combiner<\/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\/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-f9290b3f0ad838c72790bb7f728e4abf wp-block-paragraph\" style=\"font-size:16px\">Form for the project-specific design of your generator junction box (GAK) or DC combiner, including a suitable 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\/dc-combiner\/\">Start project inquiry for PV generator junction box \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-447341e00510ebb40e84a48a1be573b0\" id=\"technische-unterlagen-dc-anschlusstechnik\" style=\"font-size:20px\">Technical documents DC connection 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:\/\/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-9e137a5d1030e116cd4a600b2713bc9a wp-block-paragraph\" style=\"font-size:16px\">Datasheets, certificates, and technical documentation for our entire DC connection technology portfolio, including LITE and Super Multi Box.<\/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\/technical-downloads-dc-connection-technology-for-photovoltaic-systems\/\">Technical documents DC connection technology \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-2591 size-full\" alt=\"Super Multi Box DC Combiner\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Super_Multi_Box-DC-Combiner.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Super_Multi_Box-DC-Combiner.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Super_Multi_Box-DC-Combiner-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Super_Multi_Box-DC-Combiner-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-3e076f1e5f9432f30605728a92a16528\" id=\"dc-combiner-super-multi-box\" style=\"font-size:20px\">DC Combiner Super Multi Box<\/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\/Super_Multi_Box-DC-Combiner-150x150.webp\" alt=\"Super Multi Box DC Combiner\" class=\"wp-image-2591\" style=\"border-style:none;border-width:0px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Super_Multi_Box-DC-Combiner-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Super_Multi_Box-DC-Combiner-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/Super_Multi_Box-DC-Combiner.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-44a021d3fcf0a5728afd48d8f5c9310b wp-block-paragraph\" style=\"font-size:16px\">Intelligent DC combiner with active PV string fault discrimination, automatic shutdown of faulty strings, and integrated individual string monitoring.<\/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\/smart-dc-combiner\/\">How it works + technology Super Multi Box \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-3072 size-full\" alt=\"GAK LITE f\u00fcr 1 2 3 MPP Tracker\" src=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-fuer-1-2-3-MPP-Tracker.webp\" data-object-fit=\"cover\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-fuer-1-2-3-MPP-Tracker.webp 400w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-fuer-1-2-3-MPP-Tracker-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-fuer-1-2-3-MPP-Tracker-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-f832ba48f7519a32128e7ae796ea3e8d\" id=\"gak-lite-standardlosung-3\" style=\"font-size:20px\">GAK LITE standard solution<\/h2>\n\n\n<div class=\"wp-block-image wp-duotone-unset-8\">\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\/GAK-LITE-fuer-1-2-3-MPP-Tracker-150x150.webp\" alt=\"\" class=\"wp-image-3072\" style=\"border-style:none;border-width:0px\" title=\"\" srcset=\"https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-fuer-1-2-3-MPP-Tracker-150x150.webp 150w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-fuer-1-2-3-MPP-Tracker-300x300.webp 300w, https:\/\/q3-energie.de\/wp-content\/uploads\/2026\/02\/GAK-LITE-fuer-1-2-3-MPP-Tracker.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-23d9e4278a70fb465e2463a964ef9086 wp-block-paragraph\" style=\"font-size:16px\">Preconfigured generator connection boxes for recurring system concepts \u2013 cost-effective series solution with surge protection concepts.<\/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\/lite-dc-combiner\/\">How it works + technology GAK LITE \u2192<\/a><\/div>\n<\/div>\n<\/div><\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>PV DC combiner boxes: typical applications No off-the-shelf products: custom-engineered DC combiner boxes and PV string combiner solutions for commercial, industrial and utility-scale photovoltaic systems. Protection concept, connection technology, enclosure design and monitoring functions are individually configured for each project \u2013 including standards-compliant design and documented testing.Custom DC combiner boxes are particularly suitable for PV&hellip;&nbsp;<\/p>\n","protected":false},"author":1,"featured_media":7369,"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-7470","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\/7470","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=7470"}],"version-history":[{"count":14,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7470\/revisions"}],"predecessor-version":[{"id":9585,"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/pages\/7470\/revisions\/9585"}],"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\/7369"}],"wp:attachment":[{"href":"https:\/\/q3-energie.de\/en\/wp-json\/wp\/v2\/media?parent=7470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}