Q3 ENERGIE
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
🔥 QFire AC/DC – Safety Shutdown System for Photovoltaics, Battery Storage and Backup Power
Exhibition stand: M12
Modern buildings use multiple energy sources. With backup power active, grid disconnection does not ensure that the supplied building circuits are de-energised. In certain hybrid architectures, DC cables may also remain live.
QFire AC/DC combines proven QFire string isolation with a remotely controlled grid/backup transfer switch. On a deliberate safety trigger, PV strings are to be isolated at defined points and the ATS moved to its locked OFF position. This prevents both AC sources from supplying the connected building circuits.
The innovation: a coordinated safety function across energy sources. A normal power cut allows backup supply; deliberate safety activation takes priority and initiates targeted isolation.
Standardised ratings for residential, commercial and industrial applications are planned.
QFire AC/DC – Keeping supply reliability from becoming a safety risk in an emergency.
