Belimo BF24-2 Actuator

Spring return actuator for fire and smoke dampers 90° in ventilation and air-conditioning systems 
• Torque 18/12 Nm 
• Nominal voltage AC/DC 24 V 
• Control: Open-close
• Damper rotation: 12 mm form-fit
  • Quantity
Product Details

Mode of Operation

The actuator moves the damper to its normal working position while tensioning the return spring at the same time. If the power supply is interrupted, the energy stored in the spring moves the damper back to its safe position.


Two microswitches with fixed settings are installed in the actuator for indicating the damper end positions. The position of the damper blade can be read off on a mechanical position indicator.

Manual operation

Without power supply, the damper can be operated manually and fixed in any required position. Release of the locking mechanism can be achieved manually or automatically by applying the supply voltage.

- Added to cart
- Can't add this product to the cart now. Please try again later.
- Quantity updated
- An error occurred. Please try again later.
Deleted from cart
- Can't delete this product from the cart at the moment. Please try again later.