The HAY-PSUEN54-2AL is a high-specification power solution engineered for fire detection installations that demand both a 2-Amp continuous load and long-duration battery backup. Fully certified to EN54-4:1997 +A1:2002 +A2:2006, this unit provides the mandatory monitored power required for life-safety applications. The "L" designation signifies the Large Enclosure, which offers the internal volume necessary to house larger VRLA battery pairs, ensuring the system remains operational during prolonged mains power failures.The unit features a sophisticated diagnostic suite that continuously monitors for battery presence, high internal resistance, and charging circuit health. It is equipped with independent volt-free fault relays for "Mains Fail" and "Battery/General Fault," enabling seamless integration with a Fire Alarm Control Panel (FACP) to report status changes instantly. To maintain battery health over several years, the HAY-PSUEN54-2AL utilizes temperature-compensated charging to prevent overcharging in warm environments and deep discharge protection to prevent batteries from being drained to a point of permanent damage. Housed in a robust, white powder-coated steel box with ample cable entry points, this power supply provides the perfect balance of high current output and maximum battery standby capacity for professional fire security networks.
Haydon
