Power supply module for fire protection systems EN54M 27.6V/2A/2x7Ah EN54M-2A7

Fire alarm system power supply module – reliable power in critical situations

This power supply module, compliant with EN54M standard, is designed to provide uninterrupted power to fire alarm, smoke and heat control systems, and other fire protection systems. It provides a stable voltage of 27.6 V DC, essential for the proper operation of these key safety elements. The module's design allows it to operate in both mains and battery mode, guaranteeing continuous operation even in the event of a power failure.

Construction and functionality – what distinguishes this power supply?

The EN54M-2A7 module is characterized by high efficiency (up to 89%) and low voltage ripple. It has two independently protected AUX1 and AUX2 outputs, which increase the system's resistance to failures of individual components. A built-in microprocessor manages the battery charging process, ensuring optimal use of their capacity and extending their lifespan. Additionally, the power supply monitors the battery status, signaling low voltage (LoB) and protecting them against excessive discharge (UVP).

The protections used – SCP (short-circuit), OLP (overload), OVP (overvoltage) – protect both the module itself and the connected devices from damage caused by incorrect installation operation. This ensures long-term and trouble-free operation of the fire protection system.

Key features and applications

• Compliance with standards: Meets the requirements of EN 54-4:1997+AC:1999+A1:2002+A2:2006 and EN 12101-10:2005+AC:2007, which guarantees its suitability for professional fire protection installations.
• Efficiency: Output current of 2A with momentary load up to 1.6A and continuous up to 1.6A provides sufficient power for most fire alarm systems.
• Versatility: Works with batteries with a capacity of 7 Ah to 65 Ah, allowing it to be adapted to different installation needs.
• Signaling: Has EPS (AC mains failure) and ALARM (collective failure) technical outputs and EXTi (external failure) input, enabling quick response to potential problems.
• Mounting: Possibility of mounting for built-in or DIN rail (using optional EN54M-DIN1 bracket) facilitates integration with existing infrastructure.
• Charging automation: Two-phase battery charging process with automatic temperature compensation ensures optimal charging and battery maintenance.
• Dimensions: Compact dimensions (200 x 120 x 48 mm) allow for installation in limited space.

This module is a solid solution for both professional fire protection system installers and end-users looking for a reliable power source for their safety systems. Thanks to its high-quality workmanship and advanced features, it provides peace of mind and reliable operation in critical situations.