Belimo Spring Return Fail-Safe, Proportional Damper Control Actuator, Direct Coupled - 24 VAC/DC (No Aux Switch)

The LF24-SR is used for proportional modulation of dampers and control valves in HVAC systems. The actuator operates in response to a 2 to 10 VDC, or with the addition of a 500W resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 VDC feedback signal is provided for position indication or master-slave applications. 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. Features: Cut labor costs with (10 min. installation) simple direct coupling. Actuator Centers on 1/2" shaft (K6-1, 3/4" clamp optional). True mechanical spring return - the most reliable failsafe. Mount for clockwise or counterclockwise fail-safe. Easy-to-adjust mechanical stop to limit damper rotation. Check damper position easily with clear position indicator. Don't worry about actuator burn-out. Belim...