Belimo BFN24-T Fire & Smoke Damper Actuator 24V 9Nm (IP54)

Immediately available

Belimo BFN24-T Fire & Smoke Damper Actuator 24V 9Nm (IP54)

Immediately available

Brand: Belimo

Product type: Damper Actuator

Operating Voltage: 24 VAC/DC

Force / Torque: 9 Nm

Control Signal: 2 Position

Belimo BFN24-T spring-return actuator with thermoelectric tripping device BAT (72°C) for fire & smoke dampers (90°); 9 Nm motor / 7 Nm fail-safe, AC/DC 24 V, open/close, <60 s/90°, 2x SPDT auxiliary switches, IP54, 12×12 mm continuous hollow shaft

Product information "Belimo BFN24-T Fire & Smoke Damper Actuator 24V 9Nm (IP54)"

The Belimo BFN24-T is a spring-return actuator designed for fire and smoke dampers (90°) in HVAC ventilation and air-conditioning systems. It provides open/close (on/off) control and returns the damper to the safety position using spring energy when power is interrupted.

This “-T” version is supplied combined with the BAT thermoelectric tripping device (72°C). The datasheet specifies thermal fuse response at 72°C for both duct outside and duct inside temperature monitoring.

Applications

Fire & smoke damper actuation (90°) in AHUs, ventilation risers, and smoke/fire safety ductwork
Fail-safe damper control (spring return to safety position)
End-position feedback to BMS / fire interface using 2x SPDT auxiliary switches

Technical Specifications

Specification	Value
Model	BFN24-T
Function	Spring-return actuator + BAT tripping device
Application	Fire & smoke dampers (90°)
Control	Open/Close (On/Off)
Supply	AC/DC 24 V, 50/60 Hz (AC 19.2–28.8 V / DC 21.6–28.8 V)
Torque	9 Nm (motor), 7 Nm (fail-safe)
Running time	<60 s / 90° (motor)
Fail-safe time	20 s @ -10…55°C; <60 s @ -30…-10°C
Aux switches	2x SPDT (5° / 80°)
Protection	IP54 (all mounting orientations)
Rotation angle	Max 95°
Interface	12×12 mm continuous hollow shaft
BAT response temperature	72°C duct outside; 72°C duct inside
Ambient temperature	-30…55°C (normal); safety position up to 75°C
Weight	1.4 kg