The actuator is designed for ventilation sections where the actuator must move to the zero position (emergency position) during power failure.

Fail-safe function - in the event of a power failure or disconnection of the operating voltage, the damper returns to the mechanically zero position by means of the actuator spring return.

When mounting two identical actuator types on the same damper axis, double the torque can be achieved.

Features: 

• torque 7 Nm
• spring return function, fail-safe function
• self-centering axis adapter
• rotary angle can be set mechanically between 0 ... 90°
• installed connection cable with standard length 0,9 m
• position indicator
• feedback potentiometer
• automatic adaptation of the rotary angle
• adjustable auxiliary contacts for additional functions
• run time 90 s
• closing time with return spring 15s
• IP54 protection
• 2-point control