Gruner spring return damper actuators are designed for adjusting air dampers and come with various torque ratings ranging from 3Nm to 20Nm.

Our models range from24V to 240V AC/DC. With 2/3 point control and 0...10V/4...20mA continuous control, with or without auxiliary switches..

The damper coupling can be clamp or form fit direct onto the damper shaft.

Please refer to the data sheets for further specifications.

Spring Return Actuators

Spring Return Actuators
341 Series
Spring Return Actuator 341 Series
Power Supply
24VAC/DC or
240V
available with 3 & 5 Nm
2/3 point or 0-10V or 4-20mA control
auxiliary switch
Spring Return Actuators
361 Series
Spring Return Actuator 361 Series
Power Supply
24VAC/DC or
240V
available with 10 & 20Nm
2/3 point or 0-10V or 4-20mA control
auxiliary switch