Power supply module for fire alarm systems EN54M 27.6V/3A/2×7-17Ah EN54M-3A7-17

Power supply module for fire protection systems – reliable power supply and full control

This power supply module is dedicated to fire protection systems, providing uninterrupted power to critical devices. It has been designed in accordance with EN 54-4 and EN 12101-10 standards, guaranteeing the highest level of safety and reliability. This device is the heart of the system, protecting against the effects of mains voltage failure and ensuring the continued operation of alarms and fire detection systems.

Design and functionality

The power supply is characterized by a solid construction in a metal housing (RAL 3001 – red) and is adapted to work with two 17Ah/12V batteries. High efficiency (up to 89%) translates into minimal energy losses, and low ripple voltage ensures stable power supply to connected devices. A microprocessor-based automation system monitors key operating parameters, and advanced algorithms compensate for temperature changes, optimizing the battery charging process. This ensures that the batteries operate under ideal conditions and their lifespan is maximized.

The power supply has two independently protected AUX1 and AUX2 outputs, allowing for flexible connection of various receivers. It also offers a range of diagnostic functions, such as battery circuit resistance measurement, automatic battery testing, and voltage and fuse status control. In the event of a failure, optical and acoustic alarms and ALARM and EPS relay outputs are activated, informing about problems in the system. Remote monitoring via a serial port (MODBUS RTU) and optional modules (WiFi, Ethernet, RS485, USB) allows for current monitoring of the device status and quick response in the event of irregularities.

Advantages in practice

• Full compliance with standards: Meets the requirements of EN 54-4 and EN 12101-10 standards – a guarantee of safety and approval for use in fire protection systems.
• Reliable power supply: Provides uninterrupted power even in the event of a mains voltage failure thanks to seamless switching to battery power.
• Advanced diagnostics: Monitors the condition of batteries, output circuits and its own operation – quick identification of potential problems.
• Installation flexibility: Two independently protected AUX1 and AUX2 outputs allow you to connect various receivers without the risk of damaging the entire system.
• Efficiency and savings: High efficiency (up to 89%) minimizes energy losses and reduces operating costs.
• Long-term operation: Automatic temperature compensation for battery charging extends their lifespan.
• Remote monitoring: The ability to remotely monitor the device status via a serial port or optional communication modules facilitates system management.
• Tamper protection: Anti-tamper function protects against unauthorized access to the device.

The EN54M-3A7-17 power supply is an investment in safety and peace of mind – a reliable power source for fire protection systems that will meet the expectations of even the most demanding installers and end users.