The HAY-PSUEN54-5AL is a high-performance EN54-4 certified fire rated power supply unit designed to deliver reliable and uninterrupted 27.6V DC power to critical fire detection and alarm systems. With a robust 5A output, this PSU is engineered for powering fire alarm control panels, sounder circuits, and auxiliary fire safety devices, ensuring consistent system operation during both mains and emergency conditions.
Housed in a durable, wall-mountable steel enclosure, this product offers tamper protection and ample internal space to accommodate two 18Ah sealed lead-acid standby batteries. This allows for extended backup runtime in the event of a mains power failure, guaranteeing compliance and reliability in demanding fire safety applications.
The unit incorporates advanced battery management technology, including intelligent charging, deep discharge protection, and automatic switchover between mains and backup power. Built-in fault monitoring with clear LED status indicators for mains, battery, and system faults makes it simple for installers and maintenance teams to identify potential issues quickly. Additional volt-free relay outputs provide fault and mains fail signalling to connected fire panels.
Meeting the stringent requirements of EN54-4:1997 +A1:2002 +A2:2006, the HAY-PSUEN54-5AL is fully compliant for use within certified fire detection systems. Its compact enclosure (420 × 400 × 80 mm) ensures a space-efficient installation, while its 5.2 kg weight (excluding batteries) makes handling straightforward.
Ideal for professional fire alarm installations, this power supply unit combines robust build quality, reliable performance, and industry-approved compliance. For installers and system designers looking for a trusted 5A EN54-4 PSU solution, the HAY-PSUEN54-5AL offers the perfect balance of reliability, efficiency, and safety assurance.
