Description
The Belimo AFB24-SR spring return, 180 lb-in electronic damper actuator provides proportional, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications.
The actuator is mounted directly to a damper shaft up to 1.05” in diameter by means of its universal clamp. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.
The actuator operates in response to a 2 to 10 Vdc, or with the addition of a 500Ω resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 Vdc feedback signal is provided for position indication. Not to be used for a masterslave application.
Features
- Brushless DC motor with Application Specific Integrated Circuit (ASIC) stall protection
- Bi-directional fail-safe spring return
- Unique self-centering shaft coupling
- Manual override
- 180 lb-in (20 Nm) torque
- 5° preload as shipped from factory
- Maintenance free
- UL and CSA listed
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