Belimo BFL24-T95 - spring-return actuator for fire dampers

Belimo BFL24-T95

Spring-return actuator for fire and smoke control dampers with 90° rotation in ventilation and air-conditioning systems. If the power supply is interrupted, the spring moves the damper to the safety position. The BAT release responds at a temperature of 72°C outside the duct or 95°C inside the duct.

Key features and specifications

• AC/DC 24 V, 50/60 Hz supply; Close/Open control.
• Motor torque 4 Nm; safety function torque 3 Nm.
• Motor running time <60 s / 90°; safety function running time 20 s @ -10...55°C and <60 s @ -30...-10°C.
• Rotation angle: max. 95°. Motor direction of rotation selected by L/R mounting.
• Power consumption: 2 W during movement, 0.7 W at rest; 2.8 VA for cable sizing.
• Auxiliary switches 2x SPDT, switching points 5° / 80°.
• Power and control connection: 1 m cable, 2x 0.75 mm², FRNC (halogen-free); auxiliary switch connection: 1 m cable, 6x 0.75 mm², FRNC (halogen-free).
• Mechanical connection: 12x12 mm form-fit connection, through hollow shaft.
• Manual override with position stop; mechanical position indicator.
• IP54 protection rating; IEC/EN III protection class, Safety Extra-Low Voltage (SELV).

Included: hand crank, indicator, protective bag and insert for 12/10 mm form-fit connection.