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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Reversible with built-in switch. The LF series provides 95 of rotation and is provided with a graduated position indicator showing 0 to The actuator operates in response to a 2 to 10 VDC, or with the addition of a W resistor, a 4 to 20 mA control input from an electronic controller or positioner.

Visual indicator, 0 to 95 0 is spring return position. Add to a new shopping list. Actuator Customization characters remaining Quantity: Power consumption is reduced in holding mode. Actuator Customization characters remaining.


The ASIC monitors and controls the brushless DC motors rotation and provides a digital rotation sensing function to prevent damage to the actuator in a stall condition.

The LF series actuators provide true spring return operation for reliable fail-safe application and positive close-off on air tight dampers.

The switching function is adjustable between 0 and Personalization If needed, use the space below to type in any additional actuator configuration required for your order: A 2 to 10 VDC feedback signal is provided for position indication or master-slave applications. The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches. Quantity Discounts Quantity Amount 5 to For proportional modulation of dampers in HVAC systems.

Direction of Rotation motor.

Belimo Damper Actuator LF

Direction of Rotation fail-safe. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.

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You may not enter lf42 than characters for ‘Actuator Customization’. This SPDT switch is provided for safety interfacing or signaling, for example, for fan start-up. Welcomeyou have 0 items in your cart Sign-up View Cart Checkout.

Actuator sizing should be done in accordance with the damper manufacturers specifications. The microprocessor provides the intelligence to the ASIC to provide a constant rotation rate and to know the actuators exact fail-safe position.

LF24-S – Belimo Spring-return actuator 4 Nm, 75 s, 95° AC / DC 24 V, Open/Close

The spring return system provides consistent torque to the damper with, and without, power applied to the actuator. Product Reviews Rate This Product: Electronic throughout 0 to 95 rotation.

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