Belimo LF24-MFT-20 US Damper Actuator, 35 in-lb [4 Nm], Spring return, AC/DC 24 V, 6€¦9 V, MFT/programmable. The LF series actuators provide true spring return operation for reliable fail-safe application and positive close-off on air tight dampers. The spring return system provides consistent torque to the damper with, and without, power applied to the actuator.
