Power supply module for fire protection systems EN54M 27.6V/5A/2×7-17Ah EN54M-5A7-17

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

This power supply module, designed for fire alarm systems, smoke and heat control, and fire automation, provides uninterrupted 27.6 V DC power. The device is compatible with batteries with a capacity of 7 Ah to 20 Ah, making it a versatile solution for various installations. Designed with safety and reliability in mind, this module is a key element of any professional fire protection installation.

Design and functionality

The power supply is characterized by high efficiency – up to 89% – which translates into energy savings. A microprocessor-based automation system takes care of the complete diagnostics of the power supply and battery parameters, ensuring optimal system operation. Two independently protected AUX1 and AUX2 outputs provide a stable 27.6 V DC voltage, and the ability to cooperate with EN54C-LS4 and EN54C-LS8 sequential modules (available separately) expands the system's functionality. Additionally, an optional EN54M-LED LED panel allows for visual monitoring of the device's status.

Safety and protection

The module is equipped with a number of protections: short-circuit (SCP), overload (OLP), overvoltage (OVP), and UVP (protection of batteries against excessive discharge). Battery circuit continuity control, output voltage, and low battery voltage signaling LoB further increase safety. In the event of a 230 V AC network failure, automatic switching to battery power occurs, guaranteeing continuous system operation. The power supply also has an external failure input EXTi. High quality workmanship and compliance with EN54-4 standards ensure long-lasting and trouble-free operation of the device.

• Wide range of applications: ideal for fire alarm systems, smoke and heat control, and fire automation.
• High efficiency: up to 89% – minimizes energy losses and reduces operating costs.
• Advanced diagnostics: microprocessor system monitors the status of the power supply and batteries.
• Versatility: compatible with various types of batteries (7 Ah - 20 Ah) and additional modules.
• Safety: a number of protections protect the device and installation from damage.
• DIN rail mounting: facilitates installation and integration with existing systems (EN54M-DIN1 bracket required).
• Optical signaling: possibility to connect EN54M-LED LED panel for visual monitoring of the device's status.
• Low voltage ripple: ensures stable power supply to connected devices.

The EN54M-5A7-17 power supply is a solid solution for both professional fire protection system installers and end-users looking for a reliable power source for their security systems.