Haydon HAY-PSUEN54-2AL EN54-4 Certified Fire Alarm Power Supply Unit

The Haydon HAY-PSUEN54-2AL is a professional-grade EN54-4 certified 27.6V DC 2A power supply unit designed specifically for fire detection and alarm systems. Engineered for reliability and compliance, this power supply delivers uninterrupted power to fire alarm panels, sounders, detectors, emergency interfaces, and other critical life-safety equipment.

Built within a durable large steel enclosure, the unit accommodates 2 x 18Ah sealed lead-acid backup batteries, ensuring continued operation during mains power failures. Intelligent battery management continuously monitors battery condition and automatically switches to standby power when required.

The HAY-PSUEN54-2AL features advanced protection mechanisms including overload protection, short-circuit protection, battery deep discharge protection, and temperature-compensated charging. Integrated fault monitoring outputs provide clear reporting for mains failure, battery issues, and system faults, making it ideal for commercial, industrial, educational, healthcare, and public-sector fire alarm installations.

Designed to meet the stringent requirements of modern fire safety systems, the Haydon EN54 PSU range provides dependable performance, long-term reliability, and full compliance with EN54 fire alarm standards.

Key Features

✔ EN54-4 Certified Fire Alarm Power Supply

✔ 27.6V DC Regulated Output

✔ 2A Continuous Output Current

✔ Large Steel Enclosure

✔ Supports 2 x 18Ah Backup Batteries

✔ Intelligent Battery Charging & Monitoring

✔ Automatic Battery Switchover During Mains Failure

✔ Deep Discharge Battery Protection

✔ Short Circuit & Overload Protection

✔ EPS & GEN Fault Reporting Outputs

✔ LED Status Indicators

✔ Suitable for Fire Detection & Alarm Systems

✔ Professional Wall-Mounted Installation

✔ 110-240V AC Universal Input

Technical Specifications

The Haydon HAY-PSUEN54-2AL is a fully EN54-4 certified 27.6V DC 2A fire alarm power supply featuring intelligent battery monitoring, automatic standby operation, fault reporting outputs, and a large steel enclosure supporting 2 x 18Ah backup batteries for reliable life-safety system protection.