Individual company presentation

Modern and innovative technologies "Made in Germany" secure our prosperity and the future of our children. Q3 has been active in the development and production of these technologies for 15 years and presents with the QFire fireman's switch a pioneering switch-off technology for PV systems up to the megawatt range.

Basic information about the QFire PV Fireman's Switch
The control box is installed centrally near the inverter or at another accessible point on the AC grid. The switch boxes are installed close to the module, from where the lines can be disconnected in an electrically safe and arc-free manner using special high-power relays.

The PV system is disconnected

• manually at the control box
• via an external EMERGENCY STOP or key switch
• coupled via the fire alarm panel
• AC-coupled via the mains supply in the event of a power failure - the system automatically restarts when the mains supply is restored.
• in the event of undervoltage (e.g. cable break) or major fluctuations in the AC power supply

Features of the Q3 QFire Fireman's Switch

Q3 QFire fireman's switches are certified according to IEC 60947-3 and are customised to customer requirements - Made in Germany. The integration of various connection technology components, from surge protection to string current measurement, enables customised solutions. The number of switchable strings per disconnect box, connector or terminal technology and metal enclosures can also be customised.

Cluster technology - up to 5 different roof areas with one control box
Up to five different roof areas can now be connected and disconnected from a single control box. In the event of a power failure, all clusters are put into a safe state and automatically switched on when power is restored.

Plug & Play for the control line
Monitoring
Delayed switching
Training for planners

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Floorplan Booth

B3.135