Power supply for fire protection systems EN54C 27.6V/3A/2x17Ah EN54C-3A17

Power supply for fire protection systems – reliable power and protection

The EN54C-3A17 buffer power supply is a key element of fire alarm systems, smoke and heat control systems, and fire automation. The device provides a stable 27.6V DC voltage, essential for the proper operation of connected devices, and in the event of a mains power failure – it seamlessly switches to battery power, guaranteeing the continuous operation of the system. The design of the power supply has been carefully thought out in terms of both ease of installation and subsequent operation.

Key features and applications

The EN54C-3A17 power supply is designed to work with two 17Ah/12V batteries (AGM or gel), providing long-lasting and reliable backup power. Two independently protected AUX1 and AUX2 outputs with a current of 2.2A (continuous operation) or 3A (momentary operation) allow connection of various receivers. High efficiency (up to 89%) translates to minimal energy losses and extends battery life. The use of microprocessor automation ensures complete diagnostics of the power supply and battery operation, as well as a number of protections against failures and damage.

• Compliance with standards: Meets the requirements of PN-EN 54-4 and PN-EN 12101-10 standards, guaranteeing its use in professional fire protection systems.
• Wide range of applications: Ideal for fire alarm systems (SSP), smoke and ventilation systems, and other devices requiring a stable 27.6V DC power supply.
• High reliability: Protections against overvoltage (OVP), short circuit (SCP), overload (OLP), and excessive battery discharge (UVP) ensure safe and trouble-free operation.
• Easy diagnostics: LEDs on the PCB and the LED panel provide information about the status of the mains power supply, voltage at the AUX outputs, and any failures.
• Flexible mounting: Metal housing in RAL3001 (red) allows surface mounting, and the distance from the ground facilitates cable routing.

Functionality and additional features

The EN54C-3A17 power supply offers a number of additional functions that increase user comfort and system safety:

• Optical signaling: Clear information about the power supply status thanks to LEDs and the LED panel.
• EXTi input: Possibility of connecting an external fault signal.
• EPS FLT and ALARM outputs: Signaling of AC power failure and collective failure.
• Tamper protection: Protection against opening the housing.
• Expandability: Compatibility with EN54-LB4/LB8 fuse modules and EN54-LS4/LS8 sequential modules (available separately).

Thanks to this, the power supply is a comprehensive solution for demanding fire protection installations, providing not only reliable power but also full control over the system status.