The HAY-PSUEN54-2A is engineered for high-reliability fire security applications where a 2-Amp continuous current is required. Fully certified to EN54-4:1997 +A1:2002 +A2:2006, this unit provides the essential fail-safe power required for life-safety systems. It delivers a regulated 27.6V DC output, optimized for maintaining a 24V VRLA battery string in peak condition while providing consistent power to the primary system load.This power supply features an advanced diagnostic suite that continuously monitors battery health, including connectivity and high internal resistance checks. The unit is equipped with individual volt-free fault relays for "Mains Fail" and "Battery/General Fault," allowing for direct integration with Fire Alarm Control Panels (FACP) to signal status changes immediately. To maximize battery lifespan, the HAY-PSUEN54-2A utilizes temperature-compensated charging and deep discharge protection, preventing batteries from failing during critical long-term power outages. Housed in a durable, powder-coated steel enclosure with convenient knockouts for 20mm conduit, it offers a professional and secure housing for the PCB and standby batteries. For installers needing a fully compliant, mid-range power hub for fire systems, the HAY-PSUEN54-2A is the definitive industry choice.
Haydon
