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

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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..

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

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Please refer to the data sheets for further specifications.

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Spring Return Actuators

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