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BELIMO TFB120 Spring Return Actuator

BELIMO TFB120 Spring Return Actuator

  • $250.98



For On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. Control is On/Off from an auxiliary contact, or a manual switch. The actuator is mounted directly to a damper shaft from 1/4” up to 1/2” in diameter by means of its universal clamp, 1/2” shaft centered at delivery. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.


  • Torque: 22 in-lb [2.5 Nm]
  • Power Supply: 100...240 VAC, -15% / +10%, 50/60 Hz
  • Angle of Rotation: 95°
  • Direction of Rotation (Fail-Safe): Reversible with cw/ccw mounting
  • Shaft Diameter 1/4...1/2" round centers on 1/2"
  • Actuator Type: Spring return
  • Degree of Protection: IP42, NEMA 2, UL Enclosure Type 2
  • Running Time (Fail-safe):<25 s
  • Running Time (Motor): 75 s 


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