Siemens FP120-Z1 70 W Power Supply

FP120-Z1 is a standalone 70 W power supply that converts mains voltage to system voltage. It manages battery charging, continuously monitors mains voltage and battery status, and produces relay outputs with separate fault signals for each. This ensures that any supply-side problem is not overlooked silently but is reported by the panel. It is positioned as an auxiliary power source in installations where the number of sirens, strobes, and modules exceeds the panel output capacity.