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Building insurers and local fire brigades are increasingly demanding that rooftop photovoltaic systems switch off automatically in the event of a fire. This switch-off device must be placed when the string cables enter the building. Automatic switch-off occurs when the fire brigade switches off the building's power supply. This allows the fire brigade to carry out extinguishing work in an emergency without being unnecessarily endangered. When the power supply is restored, the PV Next Fireman Switch automatically reconnects the PV strings.
Optimised PV systems for installers, planners and operators - Weidmüller makes it easy! Discover at Intersolar 2025 how you can make your projects safer and more profitable with our standard-compliant surge protection and intelligent monitoring solutions.
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The PV Next Fireman Switch automatically disconnects PV modules from the grid in case of fire. Various connection types ensure maximum flexibility during installation.
The fireman's switches are extremely compact and offer the possibility of bundling strings close to the PV modules. This saves up to 50 % of cable and time during installation.
In order to optimally meet the increasing demand, we keep standard versions of our PV products permanently available from stock.
Are you looking for solutions to increase the efficiency of your photovoltaic installation projects? Here we give you an overview of the right products for reliable protection in commercial and residential buildings. Learn more about our PV combiner boxes, surge protection, tools and the fitting products for different inverter types.
Jan Marrenbach
Strategic Product Manager Photovoltaics