The actuator is designed for air handling sections that need to be closed in the event of a power failure. 

Emergency function - in the event of a power failure or disconnection of the operating voltage, the damper will return to the mechanically zero position using the actuator's spring.

By mounting two identical types of actuators on the same damper shaft, double the torque can be achieved. 

Features: 

• torque 7 Nm 
• emergency function solved by spring 
• self-centering shaft adapter 
• working range can be mechanically set between 0...90° 
• installed connection cable with a standard length of 0.9 m
• position indicator
• feedback potentiometer
• automatic adaptation of the angle range 
• adjustable auxiliary contacts for additional functions
• adjustment time 90 s
• spring closure 15 s
• protection rating IP54
• dimensions 192 mm (l) x 81 mm (w) x 63 mm (h)
• 3-point control