Belimo AFB24-MFT Spring Return Damper Actuator.,180 in-lb [20 Nm], AC/DC 24 V, 2...10 V, MFT/programmable. The AF 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
