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BFN Fire damper actuators 9 Nm / 90°  For small fire and smoke dampers
 90° angle of rotation

The product may differ from the illustration

BFN24-ST
Fire damper actuator 90°
9 Nm/7 Nm, <60 s/20 s (Motor/Fail-safe)
AC/DC 24 V, Open/close, Cable with connector plug 1 m
Form fit 12x12 mm, continuous hollow shaft
Auxiliary switch 2 x SPDT (5° / 80°)
Manual override with position stop
IP54, Direction of motion selectable by mounting L/R
Incl. Hand crank, Pointer, Protective bag


Only available through manufacturers
of fire protection dampers
Select another actuator
Documentation for BFN24-ST
Send PDFs for other items
Technical data, wiring diagram, dimensions (PDF - 378 kb)
 Send Data Sheet
Mounting instruction BFL/BFN (PDF - 1,117 kb)
 Send Data Sheet
Mounting instruction auxiliary switches ( ZSN-B) (PDF - 265 kb)
 Send Data Sheet
Fire damper actuators – Technology that saves lives (PDF - 7,910 kb)
 Send Data Sheet
CE Declaration of Conformity
 Send Data Sheet
Accessories for BFN24-ST
BAT72
Thermoelectric tripping device
AC/DC 24 V, Cable 1 m
Duct inside temperature 72°C (color black)
Duct outside temperature 72°C
Probe length 65 mm
BAT72-ST
Thermoelectric tripping device
AC/DC 24 V, Cable with connector plug 1 m
Duct inside temperature 72°C (color black)
Duct outside temperature 72°C
Probe length 65 mm
ZA10-B
Form fit insert
for BFL, BLF, BFN, BF, BLE, BEN, BEE
for hollow shaft 12x12 mm
Reduction to 10x10 mm
ZA10-B.1
Form fit insert
for BFL, BLF, BFN, BF, BLE, BEN, BEE
for hollow shaft 12x12 mm
Reduction to 10x10 mm
Multipack 50 pcs.
ZA11-B
Form fit insert
for BFL, BLF, BFN, BF, BLE, BEN, BEE
for hollow shaft 12x12 mm
Reduction to 11x11 mm
ZA11-B.1
Form fit insert
for BFL, BLF, BFN, BF, BLE, BEN, BEE
for hollow shaft 12x12 mm
Reduction to 11x11 mm
Multipack 50 pcs.
BKN230-24
Communication and power supply unit
for fire damper actuators 24 V with connector
with status LED
Connection for a smoke switch
Power supply AC 230 V
BKN230-24-C-MP
Communication and power supply unit
for fire damper actuators 24 V with connector
Communication MP-Bus
UK24MOD, UK24BAC and SBS-Control
with status LED
BKN230-24-MOD
Communication and power supply unit
for fire damper actuators 24 V with connector
Communication BACnet MS/TP, Modbus RTU
with status LED
Connection with power supply for a smoke switch
BSIA24-48
Communication and power supply unit
for fire damper actuators 24 V with connector
Control by pulse release
Connection for one BAT72-ST
Nominal voltage AC/DC 24/48 V
BSIA24-48-R
Communication and power supply unit
for fire damper actuators 24 V with connector
Control by interrupt release
Connection for one BAT72-ST
Nominal voltage AC/DC 24/48 V
SN2-C7
Auxiliary switch 2 x SPDT
 
ZA8-B
Form fit insert
for BFL, BLF, BFN, BF, BLE, BEN, BEE
for hollow shaft 12x12 mm
Reduction to 8x8 mm
ZA8-B.1
Form fit insert
for BFL, BLF, BFN, BF, BLE, BEN, BEE
for hollow shaft 12x12 mm
Reduction to 8x8 mm
Multipack 50 pcs.
ZKN1-B
Hand crank 40 mm
for BFL, BFN, BEN, BEE
ZKN1-B.1
Hand crank 40 mm
for BFL, BFN, BEN, BEE
Multipack 100 pcs.
ZKN2-B
Hand crank 63 mm
for BFL, BFN, BEN, BEE
ZKN2-B.1
Hand crank 63 mm
for BFL, BFN, BEN, BEE
Multipack 100 pcs.
ZSD-B.1
Protective bag with wire
Dimensions LxW approx. 350x250 mm
Multipack 100 pcs.
ZSN-B
Bracket
for SN2-C7 for BFL, BFN
ZZN12-B
Pointer
for BFL, BFN, BEN, BEE
for hollow shaft 12x12 mm
Material polycarbonate
ZZN12-B.1
Pointer
for BFL, BFN, BEN, BEE
for hollow shaft 12x12 mm
Material polycarbonate
Multipack 100 pcs.
Recommendation for application

Regular operational checks (open-close control of the fire damper) enhance the safety of people, animals, property and the environment. Unless other requirements are stipulated – e. g. in the damper manufacturer's operating instructions – Belimo recommends the performance of monthly operational checks. Fire damper actuators from Belimo are designed in accordance with service life specifications contained in the technical datasheet for regular operational checks. Notes for regular operational checks can be found in the European Product Standard for Fire Dampers (EN 15650) under "Maintenance information".

In the case of motorised fire dampers, remote operational checks are also possible, thus lowering operating costs.
New range of fire damper actuators BFL and BFN
Fire protection scenarios
Advantages of motorised fire dampers
Safety Notes

The device must not be used outside the specified field of application, especially not in aircraft or in any other airborne means of transport.
The actuator is adapted to and installed on the smoke control damper by the damper manufacturer. For this reason, the actuator is only supplied direct to safety damper manufacturers. The manufacturer then bears full responsibility for the proper functioning of the damper.
The two switches integrated in the actuator are to be operated either on power supply voltage or at safety extra-low voltage. The combination power supply voltage/ safety extra-low voltage is not permitted.
Cables must not be removed from the device
The device may only be opened at the manufacturer’s site. It does not contain any parts that can be replaced or repaired by the user.
The device contains electrical and electronic components and must not be disposed of as household refuse. All locally valid regulations and requirements must be observed.

Legal disclaimer

All information applies to common Standard-Applications. Country specific regulations may require different solutions. Deviations in specific markets might be possible. The information regarding the Standard-Applications is therefore not to be seen as a warranty.
For detailed information concerning valid standards or regulations please contact the local Belimo agency.

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