Low-voltage disconnect switch SOL30-SAFETY

DCfor photovoltaic applicationssafety

With the fireman's switches from Eaton’s Moeller series, the sun’s energy can be safely and efficiently harnessed. In the event of a fire, DC voltages of up to 1,000 V often continue to be present on the modules and the cables, even after the inverter has been enabled, making it almost impossible for firefighters to do their job. Fireman’s switches ensure the safety of firefighters by making it possible to disconnect the cables leading from the solar modules to the inverter at the touch of a button, either on site or via the local power utility. The fireman’s switch must be installed along the DC cable in the immediate vicinity of the PV modules. As soon as the location of the fire has been disconnected from the local power supply, or the PV system has been deactivated locally, the undervoltage release in the fireman’s switch will automatically switch off the PV modules. For small photovoltaic systems with one or two identical strings, the basic version of Eaton's proven fireman’s switch is ideal. With a current carrying capacity of 30 A at 1,000 V DC, it can safely switch all standard module types.