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Belimo BFA24 - spring-return actuator for fire dampers

Name: Belimo BFA24 - spring-return actuator for fire dampers
Brand: Belimo
SKU: BFA24
Price: 2249.67 PLN
Availability: OutOfStock

Belimo

zł2,249.67

VAT included

zł1,829.00 tax excluded

Belimo BFA24 spring-return actuator for fire and smoke dampers in ventilation and air-conditioning systems. The motor torque and safety function torque are 20 Nm. AC/DC 24 V power supply, Close/Open control.

If the power supply fails, the spring moves the damper to the safety position. The actuator has 2x SPDT and a 12x12 mm form-fit connection with a hollow through shaft.

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Belimo BFA24 – actuator for fire and smoke dampers

The BFA24 spring-return actuator is designed for 90° fire and smoke dampers in ventilation and air-conditioning systems. During operation, the motor moves the damper to the operating position and tensions the return spring. If the power supply is interrupted, the spring energy moves the damper to the safety position.

Key technical data

Motor torque: 20 Nm; safety function torque: 20 Nm.
Nominal voltage: AC/DC 24 V (SELV); frequency: 50/60 Hz.
Control: Close/Open.
Motor running time: <60 s / 90°; safety function running time: 20 s @ -10...55°C, <60 s @ -30...-10°C.
Rotation angle: max. 95°.
Power consumption during operation: 7.5 W; in standby: 1.5 W; sizing power: 10 VA.
Auxiliary switches: 2x SPDT, switching points 5° / 80°.
Mechanical connection: 12x12 mm form-fit connection, hollow through shaft.
Motor direction selected by L/R mounting; manual override with position stop.
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).
Protection rating: IP54; IEC/EN protection class: II, reinforced insulation.

Supplied with: hand crank, position indicator and protective bag. Manual override must only be performed with the power supply switched off.