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

Fire Alarm System Power Supply Module – Reliable Power and Protection

This power supply module, designed for fire alarm systems, provides stable and safe power to devices responsible for fire detection and alerting. Designed in accordance with EN54-4 and PN-EN12101-10 standards, it is a key element of a reliable safety system. The device is ideal for both professional fire alarm system installers and end-users looking for a proven solution.

Design and operating parameters

The power supply is designed to work with batteries with a capacity of 7Ah to 17Ah, allowing it to be adapted to the specific needs of the installation. The housing dimensions (200 x 120 x 48 mm) allow for mounting in standard cabinets and enclosures. The device is characterized by high efficiency (up to 89%) and low ripple voltage, which translates into stable operation of connected devices. Versions with different current outputs are available, including the 2A/2x7-17Ah model.

Safety and functionality

The module is equipped with a number of protections, such as SCP (short-circuit protection), OLP (overload protection), OVP (overvoltage protection), and UVP (undervoltage protection). Additionally, it has independently protected AUX1 and AUX2 outputs, providing 27.6V DC voltage with a total current output – continuous operation 1A, momentary operation 2A. In the event of a mains power failure, it automatically switches to battery power, ensuring continuous system operation. Optical signaling (optional EN54M-LED LED panel) and technical outputs EPS (AC power failure), ALARM (collective failure), and EXTi (external failure) allow for quick identification of potential problems and reaction to them. The power supply also has a function to measure the resistance of the battery circuit and automatic temperature compensation for battery charging.