BELIMO LF120 Spring Return Actuator

LF120

Description:

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 3/8” up to 1/2” in diameter by means of its universal clamp, 1/2” shaft centered at delivery. For shafts up to 3/4” use K6-1 accessory. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.

Specifications: 

• Actuator Type: Spring return
• Angle of Rotation: 95
• Control Type: On/Off
• Degree of Protection: IP54, NEMA 2, UL Enclosure Type 2
• Direction of Rotation (Fail-Safe): Reversible with cw/ccw mounting
• Electrical Connection: cable
• Power Consumption (Holding): 3.5 W
• Power Consumption (Running): 5.5 W
• Running Time (Fail-safe): <25 s
• Running Time (Motor): 75 s
• Safety Function: YES
• Shaft Diameter: 3/8...1/2" round, centers on 1/2"
• Torque: 35 in-lb [4 Nm]
• Voltage AC/DC: AC 120 V

Also See:

• Belimo LF120-S Spring Return Actuator 

Resources:

• Belimo LF120 Spring Return Actuator Technical Litertaure
  
• Belimo LF Spring Return Actuator Installation Instructions