Actuadores giratorios
MSxx20F 175 lb-in. Fire and Smoke Damper Actuators
The MS4120, MS4620, and MS8120 are spring return direct coupled actuators (DCA) for Fire and Smoke dampers.
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The MS4120F, MS4620F, MS8120F Fast-Acting, Two-Position Actuators are spring return direct coupled actuators (DCA) for on/off damper control. The actuator accepts an on/off signal from a single-pole, single-throw (spst) controller. Reversible mounting allows actuator to be used for either clockwise (cw) or counterclockwise (ccw) spring rotation.
Features & Benefits:- 175 lb-in. (20 Nm) minimum driving torque at 350°F (176°C)
- Reversible mounting facilitates use in either clockwise (cw) or counterclockwise (ccw) spring rotation
- Integral spring return ensures level of return torque
- Stainless steel internal spring
- Fifteen-second spring return timing
- No special cycling required during long-term holding
- No audible noise during holding
- Models available for 24, 120, and 230 Vac applications
- Ninety-five degree angle of rotation
- Actuator holds rated torque at reduced power level
- Die-cast aluminum housing
- Housing design allows flush mounting to damper
- Patented Self-Centering Shaft Adapter (SCSA). Patent Number: US 6,505,991
- Designed to operate reliably in smoke control systems requiring Underwriter’s Laboratories Inc. UL555S ratings up to 350°F.
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