The Zeta PP-5/17 Premier Power Pack is an EN54-4 compliant 5.0A fire alarm power supply unit designed for use in fire detection and alarm systems requiring reliable monitored standby power. It features an integrated LCD display providing real-time system status, including output voltage, output current, and fault conditions. The unit incorporates an advanced three-stage intelligent battery charging system (Boost, Float, and Pulse modes) to optimise battery performance and lifespan.