Product unavailable

Belimo BF24-TN-ST - fire damper actuator

Name: Belimo BF24-TN-ST - fire damper actuator
Brand: Belimo
SKU: BF24-TN-ST
Price: 2841.30 PLN
Availability: OutOfStock

Belimo

zł2,841.30

VAT included

zł2,310.00 tax excluded

Spring-return actuator for fire and smoke dampers, equipped with a BAT thermal release (72°C). The motor torque is 18 Nm, and the safety function torque is 12 Nm. AC/DC 24 V power supply, Close/Open control.

The model has two auxiliary switches 2x SPDT and a 12x12 mm form-fit connection with a non-through hollow shaft.

Product unavailable

Notify me when available

Interested in this product? Drop us an email and we will let you know when it's available for order.

Belimo BF24-TN-ST

Spring-return actuator for fire and smoke dampers in ventilation and air-conditioning systems. During operation, the motor moves the damper and tensions the return spring. If the power supply is interrupted, the spring moves the damper to the safety position. The BAT thermal release has thermal fuses that respond to a temperature of 72°C inside and outside the duct.

Key features and parameters

Motor torque: 18 Nm; safety function torque: 12 Nm.
Rated voltage: AC/DC 24 V; frequency: 50/60 Hz.
Control: Close/Open; motor running time: <120 s / 90°; safety function running time: 16 s @ 20°C.
Power consumption during operation: 7 W; in standby: 2 W; sizing power for cables: 10 VA.
Auxiliary switches: 2x SPDT, switching points 5° / 80°.
12x12 mm form-fit connection, non-through hollow shaft; maximum rotation angle: 95°.
Motor direction of movement selected by L/R mounting; manual override with stop and mechanical position indicator.
Cables with 1 m connecting plugs: power supply and control 2x 0.75 mm², auxiliary switches 6x 0.75 mm²; FRNC (halogen-free).
Protection rating: IP54.

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

Brand

Belimo
Reference

BF24-TN-ST
EAN13

7630498103629

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)

7 W
Power consumption (holding)

2 W
Rated power

10 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)

＜120 s / 90°
Running time (safety function)

16 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

18 Nm
Direction of movement - motor

Selectable by mounting L/R
Rotational angle

95°
Mechanical connection

Form-fit connection 12x12 mm, blind hollow shaft