Overview
The Belimo AFB24 is a spring return damper actuator designed for high-torque on/off fail-safe control of dampers in commercial HVAC systems.
Features
- High-torque output for demanding air damper control applications
- Spring return fail-safe operation provides immediate mechanical reset on power loss
- Dual voltage operation accepting 24 VAC or 24 VDC
- Universal shaft clamp for direct mounting to damper shafts
Specifications
- Torque: 180 in-lb [20 Nm]
- Nominal Voltage: AC 24 V / DC 24 V
- Control Type: On/Off
- Actuator Type: Spring Return
- Power Consumption: 5 W running, 2.5 W holding
- Degree of Protection: IP54, NEMA 2
Applications
- Fail-safe on/off damper control in commercial HVAC ducting
- Safety damper actuation in building ventilation systems





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