Belimo's SM damper actuators are a series of 20 Nm torque actuators without safety function for moving dampers in building installations. Rotary actuators with SM power cable are suitable for air dampers with an area of up to approx. 4 m2. The series includes: SM24A, SM24A-S, SM230A, SM230A-S, SM24A-SR, SM230ASR.
The SM series damper actuators are easy to mount directly on the damper axle using a universal mounting clamp, supplied with a tape to prevent the actuator from turning. Manual operation is possible after pressing the button (the gear remains disengaged until the button is released, the pressed button can be locked).
The angle of rotation is adjusted using mechanical stops. The actuator is overload protected, requires no limit switches and stops automatically when it reaches the limit stop.
• Without a spring,
• Nominal torque 20Nm,
• For air dampers with an area of up to approx. 4 m2,
• Driver of the universal clamping bracket axis: 10...20 mm,
• Movement time - 90° motor: 150 seconds,
• Direction of movement - motor: selectable with the switch 0 (left rotation) / 1 (right rotation),
• IP 54.
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