Belimo NF24 / NF24A 24V Spring Return Damper Actuator – 10Nm

The Belimo NF24 / NF24A is a robust 24V spring return rotary actuator designed for the reliable operation of air dampers in ventilation, climate control and agricultural building applications.

The actuator provides 10 Nm torque and incorporates a mechanical spring-return fail-safe function. In the event of a power failure, the spring automatically returns the damper to its predetermined safe position.

Key Features

• Supply Voltage: AC/DC 24V
• Torque: 10 Nm
• Control: Open / Close
• Spring Return / Fail-Safe: Yes
• Motor Running Time: 75 seconds / 90°
• Spring Return Time: Less than 20 seconds under normal operating temperatures
• Rotation: Up to 95°
• Shaft Clamp: Universal 10–25.4 mm
• Protection Rating: IP54
• Manual Override: Hand crank with locking switch
• Operating Temperature: -30°C to +50°C
• Suitable for ventilation and air damper applications
• Reliable Belimo industrial-quality actuator

Typical Applications

Suitable for controlling ventilation dampers in poultry, pig and livestock buildings, as well as HVAC and general industrial ventilation systems.

The spring-return mechanism provides additional protection by automatically moving the damper to its fail-safe position if the electrical supply is interrupted.

Brand: Belimo
Model: NF24 / NF24A
Voltage: 24V AC/DC
Torque: 10 Nm
Type: Spring Return Damper Actuator