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Belimo BFL24-T-ST - spring-return actuator for fire dampers

Name: Belimo BFL24-T-ST - spring-return actuator for fire dampers
Brand: Belimo
SKU: BFL24-T-ST
Price: 2099.61 PLN
Availability: OutOfStock

Belimo

zł2,099.61

VAT included

zł1,707.00 tax excluded

Belimo BFL24-T-ST spring-return actuator for fire and smoke dampers, with BAT thermoelectric release (72°C). AC/DC 24 V supply, Close/Open control and motor torque of 4 Nm.

The return spring moves the damper to the safety position when the power supply is interrupted. The actuator has 2x SPDT position indication switches and a 12x12 mm mechanical connection.

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Belimo BFL24-T-ST actuator

Spring-return actuator with BAT thermoelectric release (72°C), designed for 90° fire and smoke dampers in ventilation and air-conditioning systems. During operation, the motor moves the damper and tensions the return spring. An interruption of the power supply moves the damper to the safety position.

Main features and specifications

Rated voltage: AC/DC 24 V; frequency: 50/60 Hz.
Control: Close/Open; motor torque: 4 Nm; safety function torque: 3 Nm.
Motor running time: <60 s / 90°; safety function running time: 20 s @ -10...55°C, <60 s @ -30...-10°C.
BAT thermoelectric release: tripping temperature of thermal fuses inside and outside the duct 72°C.
Auxiliary switches: 2x SPDT; switching points: 5° / 80°.
Power consumption during operation: 2 W; in rest position: 0.7 W; for cable sizing: 2.8 VA.
Mechanical connection: form-fit connection 12x12 mm, through hollow shaft; maximum rotation angle: 95°.
Motor direction of movement selected by L/R mounting; manual override with stop; mechanical position indicator.
Power and control connection: 1 m cable with connector, 2x 0.75 mm², FRNC (halogen-free). Auxiliary switch connection: 1 m cable with connector, 6x 0.75 mm², FRNC (halogen-free).
Protection rating: IP54; IEC/EN protection class: III, Safety Extra-Low Voltage (SELV).

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

Brand

Belimo
Reference

BFL24-T-ST
EAN13

7630498110535

AC/DC voltage

AC/DC 24 V
Auxiliary switch connection

Cable with connector plug 1 m, 6x 0.75 mm², FRNC (halogen-free)
Power consumption (running)

2 W
Power consumption (holding)

0.7 W
Rated power

2.8 VA
Power supply control connection

Cable with connecting plug 1 m, 2x 0.75 mm², FRNC (halogen-free)
Control type

Close/Open
Protection rating

IP54
Manual override

With stop
Running time (motor)

＜60 s / 90°
Running time (safety function)

20 s
Connection plug

Power / control: 3-pin plug, compatible with indicating devices with power supply (see “Accessories”) Auxiliary switch: 6-pin plug, compatible with indicating devices with power supply (see “Accessories”)
Auxiliary contacts

2x SPDT
Torque

4 Nm
Direction of movement - motor

Selectable by mounting L/R
Rotational angle

95°
Mechanical connection

Form-fit connection 12x12 mm, through hollow shaft