The Haydon HAY-PSUEN54-5AL is a high-performance EN54-4 certified 27.6V DC 5A fire alarm power supply unit designed for fire detection and life safety systems. Featuring intelligent battery charging, fault monitoring, automatic battery switchover and support for 2 x 18Ah backup batteries, it ensures reliable continuous power during mains failure.

Haydon HAY-PSUEN54-5AL EN54-4 5A Fire Alarm Power Supply Unit

The Haydon HAY-PSUEN54-5AL is a professional-grade EN54-4 certified 27.6V DC 5A power supply unit specifically engineered for fire alarm and fire detection systems requiring dependable primary and standby power. Designed to meet the latest fire safety regulations, this unit delivers stable power to fire alarm control panels, sounder circuits, detectors, interfaces, access control equipment and other critical life-safety devices.

Featuring a robust steel enclosure, the HAY-PSUEN54-5AL accommodates 2 x 18Ah sealed lead-acid batteries, providing extended standby operation during mains power failure. Intelligent battery charging and monitoring ensure batteries remain in optimum condition while deep discharge protection safeguards battery life and system reliability.

Advanced fault monitoring includes dedicated EPS (Mains Failure) and GEN (General Fault) outputs, allowing integration with fire alarm control panels for immediate fault reporting. Built-in overload, short-circuit and battery protection circuits provide enhanced safety and operational continuity in demanding fire safety installations.

The HAY-PSUEN54-5AL is ideal for commercial buildings, schools, hospitals, warehouses, industrial facilities and public sector applications where reliable backup power is essential to maintaining fire system integrity.

Key Features

✔ EN54-4 Certified Fire Alarm Power Supply

✔ 27.6V DC Regulated Output

✔ 5A Continuous Output

✔ Supports 2 x 18Ah Backup Batteries

✔ Automatic Battery Switchover

✔ Intelligent Battery Charging System

✔ Battery Health Monitoring

✔ Deep Discharge Battery Protection

✔ Overload Protection

✔ Short Circuit Protection

✔ EPS Fault Output

✔ GEN Fault Output

✔ LED Status Indicators

✔ Heavy Duty Steel Enclosure

✔ Wall Mounted Design

✔ Suitable for Fire Detection & Alarm Systems

✔ 110-240V AC Universal Input

✔ Temperature Compensated Charging

✔ Professional Fire Safety Installation Approved

Technical Specifications

Haydon HAY-PSUEN54-5AL EN54-4 Certified 27.6V DC 5A Fire Alarm Power Supply Unit with intelligent battery charging, fault monitoring, automatic standby operation, overload protection and support for 2 x 18Ah backup batteries. Designed for commercial and industrial fire detection systems requiring reliable uninterrupted power.