C-TEC BF375P Fire Door Holder Power Supply

C-TEC BF375P Fire Door Holder Power Supply

Overview

The BF375P is a mains derived power supply unit designed to provide power to 24V DC electromagnetic door retainers. It has a maximum output of 250mA and is ideal for installations where fire doors must automatically close when the fire alarm system is activated.

Trigger Release, Hold Off and Local Trigger Inputs allow straightforward connection to fire alarm control panels, building management systems, timers, relays and other ancillary equipment. This ensures reliable control and integration within modern fire safety installations.

The BF375P also includes a manual release button and status indicators to assist with system operation and diagnostics. Its compact design allows installation in standard UK double gang electrical back boxes.

Key Features

  • 250mA maximum output: provides sufficient power for multiple electromagnetic door retainers.
  • Manual release button: allows immediate local door release when required.
  • Status indicators: includes mains on and output triggered indicators for system monitoring.
  • Flexible integration: trigger inputs enable connection to fire alarm systems, BMS and auxiliary equipment.
  • Compact installation: suitable for mounting on a standard 25mm UK double gang flush or surface back box.

Technical Specifications

Parameter Specification
Supply Voltage 230V AC –10% @ 50/60Hz
IP Rating IP40
Maximum Current 45mA
Supply Output 21-28V DC ; 250mA
Maximum Number of Retainers 5 units rated @ 50mA each
Dimensions 147mm (W) x 87mm (H) x 39mm (D)
Protrusion Depth Into Back Box 24mm
Weight 480g
Operating Temperature -5°C to +40°C
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