Firefighter Switches and PV Connection Technology for Demanding Projects
Q3 ENERGIE develops and manufactures PV firefighter switches, PV combiner boxes, DC combiners and AC connection boxes – as clearly defined standard solutions or project-specific designs for photovoltaic, energy storage and grid infrastructure.
Since 2010 · Development & Manufacturing in Kaufbeuren · Every Box Tested · Technical B2B Project Support
Which PV Connection Technology Is Right for Your Project?
From firefighter switches and DC/AC connection technology to intelligent DC combiner systems and custom solutions – choose the right technical area for your project.
PV Safety
QFire Firefighter Switches
Galvanic isolation and safe DC disconnection of PV strings in accordance with IEC 60947-3 for reliable system shutdown.
DC Infrastructure
DC Connection Technology
for PV Systems
PV combiner boxes and DC combiners for string bundling, protection and reliable system integration.
AC Grid Connection
AC Connection Technology
& Grid Integration
AC connection boxes and surge protection for safe feed-in and reliable grid integration.
Energy Storage
AlphaESS Energy Storage
for B2B Projects
Storage solutions for residential, commercial and industrial applications with technical project support.
Current Projects & References
Firefighter switches and DC/AC PV connection technology in real-world projects – three current examples from practice.
-
Firefighter Safety Switch for Large PV Systems | 954 PV Strings
Planning PV Firefighter Safety Switches for Large PV Systems Large rooftop PV systems place particular demands on DC-side shutdown technology. PV firefighter safety switches for large PV systems must reliably integrate numerous strings,…
-
Replacement PV Generator Junction Boxes for Solar Parks
Replacement PV Generator Junction Boxes For Solar Parks Ground-mounted PV systems are designed for long-term and reliable operation. Many solar parks have been operating steadily for more than ten years and continue to…
-
Firefighter switches for facade PV on the M50 high-rise in Berlin-Kreuzberg
Practical example: QFire LITE firefighter switch for high-rise facade PV At the M50 high-rise building in the Die Macherei Berlin-Kreuzberg district, a demanding facade PV system was implemented with string-level DC disconnection. For…
Why Q3 ENERGIE?
Technical solutions for projects where standard products are not always enough.
Development & Manufacturing
in Germany
Electrical design, manufacturing and testing in Kaufbeuren – with short communication lines and direct technical coordination.
Standard Solution or
Custom Design
Standardised solutions for defined applications – and project-specific connection boxes for special electrical, functional or structural requirements.
Technical Project Support
From PV strings, MPPTs and inverter data through to grid configuration, protection concepts and interfaces – technical support rather than just product supply.
Contacts
Direct coordination with experienced contacts in engineering and project management – reliable, practical and with short decision-making paths.
Q3. The Box Makers.
Since 2010 · 1,600+ Custom Solutions Delivered
Knowledge, Training & Technical Documentation
Expert knowledge on firefighter switches and PV safety – from requirements and frequently asked questions to training, data sheets and technical documentation.
Firefighter Switch Requirements
for PV Systems
Standards, requirements and practical guidance for planning and implementation.
Frequently Asked Questions
About Firefighter Switches
Answers on functionality, standards, planning, integration and typical applications.
QFire Online Training
for Professionals
Practical knowledge for planners, installers and EPCs on technology, standards and system design.
Technical Downloads
& Data Sheets
Data sheets, instructions, certificates and technical documentation for planning and implementation.
Planning a Project? Let’s Talk.
Whether you need a firefighter switch, DC or AC connection technology, energy storage or a custom solution, we support you from technical assessment through to the right implementation.
Project Inquiry
Planning a new project and need the right technical solution or product configuration?
Technical Advice
Questions about system design, standards, inverter data, protection concepts or system integration?
Service & Support
Need support with an existing system, commissioning, maintenance or a technical fault?
Q3 ENERGIE – Technical Solutions from Kaufbeuren
Since 2010, Q3 ENERGIE has developed and manufactured PV firefighter switches and AC/DC connection technology for photovoltaic, energy storage and grid applications. Standardised products and project-specific connection boxes are engineered, manufactured and tested in Kaufbeuren – for installers, planners, EPCs and demanding B2B projects.