The LF24 is a 24VAC spring return direct coupled damper actuator that is designed for on-off, fail-safe control of dampers in HVAC systems. Actuator sizing . Belimo Aircontrols (USA), Inc. LF24 (-S) US. On-off, spring return failsafe, 24 V. ®. Torque min. 35 in-lb, for control of air dampers. Application. For on-off, fail-safe. enclosure must be used to shield the actuator (See Belimo Mechanical Acces- . The LF24, modulating actuators (LFSR US, LF US, LFMFT US) are.

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A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.

LF24 : Belimo Electric Damper Actuator

Technical Data Sheet Installation Manual. Reversible with built-in switch. Actuator Customization characters remaining.

The electric actuator is provided with a 4 Lf42 actuating torque and an overload protection. Products saving in a binding to the projects. Remember me I forgot my password. Product Reviews Rate This Product: Actuator sizing should be done in accordance with the damper manufacturers specifications.

Your message has been successfully sent and will be reviewed as soon as possible. Check your email for further instructions! Visual indicator, 0 to 95 0 is spring return position. You may not enter more than characters for ‘Actuator Customization’.


Add to a new shopping list. The spring return system provides consistent torque to the damper with, and without, power applied to the actuator.

Actuator Customization characters remaining Quantity: Hz Ingress protection rating. This SPDT switch is provided for safety interfacing or signaling, for example, for fan start-up.


In case of power supply cut-off, the damper moves back to its safe position by the spring energy. Power consumption is reduced in holding mode.

Please read our Privacy Policy for more information. Direction of Rotation motor. The ASIC monitors and controls the brushless DC motors rotation and provides a digital rotation sensing function to prevent damage to velimo actuator in a stall condition.

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For controlling air dampers with cross section up to 0. This site use cookies. The angle of rotation is adjusted by mechanical lf2 stops. The actuator is equipped with a return spring, which moves the damper to its operating position while tensioning the return spring at the same time. USE For controlling air dampers with cross section up to 0.


You will be prompted to enter your password belumo the next page. The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches. Direction of Rotation fail-safe. Create an account Forgot Password?


Electronic throughout 0 to 95 rotation. The LF series actuators provide true spring return operation for reliable fail-safe application and positive close-off on air tight dampers. The LF series provides 95 of rotation and is provided with a graduated position indicator showing 0 to Welcomeyou have 0 items in your cart Sign-up View Cart Checkout site search. The actuator beliimo installed directly on the air damper shaft.

For proportional modulation of dampers in HVAC systems. Quantity Discounts Quantity Amount 5 to W Swing time motor. III low voltageII totally insulated. By accepting cookies you can optimize your browsing experience. The microprocessor provides the intelligence to the ASIC to provide a constant rotation rate and to know the actuators exact fail-safe position. Nm Direction of rotation. A 2 to 10 VDC feedback signal is provided for position indication or master-slave applications.