Q3

Q3 ENERGIE – the people behind the boxes. Since 2010, we have developed and manufactured PV connection and protection solutions in Germany: QFire firefighter’s switches, smart DC combiners with string monitoring (Super Multi Box), customised

Full company profile

More products from Q3

⚡ Super Multi Box – the smartest DC combiner: enables safe, string-level switching and monitoring of large PV generators – including intelligent diagnostics and string-current monitoring.

🔥 QFire PV Firefighter Switch: automated galvanic disconnection according to DIN EN 60947-3:2020 up to 20 A per string at 1,500 V DC

All products from

Product list

Scan this product with your YDEM app to save your favorites!

⚡Stringboxes | Connection technology for PV power plants | Custom-built | Easy and fast installation

Exhibition stand: M12

We build your box!

Q3's stringboxes are built from a single unit according to your requirements and vary in their equipment (type of housing, number of inputs and outputs, fuse/diode...).

We can optionally equip your box with a (remotely controlled) DC circuit breaker, surge protection (T1+T2/T2), string current measurement, voltage measurement and data transmission. This means that the right technology can be selected for each PV system variant.

competent and cooperative design support
quick and easy installation
PV optimised components
customised = cost/benefit optimised
suitable for any module type

Experience, for your safety!

Since 2010, we have been building string boxes as well as AC combiners in all variants and for a wide range of applications, especially in the PV sector - from simple DC disconnect boxes to complex junction boxes for PV power plants with several MW output.

All products from

Super_Multi_Combiner_Box-Datenblatt.pdf

📡 Monitoring box for transformer stations | Comprehensive grid parameter measurement | Reliable communication even in remote stations

....