MEP-4101 | Damper Actuator | 10 in-lb | Non-Spring Return | 24V | Floating | KMC
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Brand: KMCSKU: MEP-4101

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MEP-4101 | Damper Actuator | 10 in-lb | Non-Spring Return | 24V | Floating | KMC

Damper Actuator | 10 in-lb | Non-Spring Return | 24V | Floating

KMC | MEP-4101
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Details for MEP-4101

Damper Actuator | 10 in-lb | Non-Spring Return | 24V | Floating

This compact, tri-state, direct-coupled actuator controls small dampers in HVAC systems that require relatively high rotation speed and low torque. Used with floating thermostats, controllers, or building automation systems, the actuator can rotate a damper 90° in 30 seconds. A minimum torque of 10 in-lb. is available over the 95° angular rotation (with an adjustable end stop).

Under the translucent cover, LEDs indicate (energized) open and closed states for position indication and troubleshooting. When the actuator reaches the end of rotation, the motor is disengaged, and (after about five seconds) the appropriate LED indicator illuminates—green for “power open” (CCW) or red for “power closed” (CW). The LED remains on until power to the terminal is simply removed or power is switched to the other terminal (and the actuator starts turning again in the opposite direction).

Like other, MEP-4xxx actuators, the MEP-4101 mounts directly to 1/4 to 5/8 inch (6 to 16 mm) round shafts or 1/4 to 7/16 inch (6 to 11 mm) square shafts, eliminating the need for expensive and complicated linkages. A non-rotation bracket, to prevent lateral movement, is included with each actuator. A gear disengagement button allows manual positioning of the actuator.


Actuator Type



KMC Controls

Control Input

24 VAC



Input Types



V-Bolt/ Screws

Normality (Fail)

Fail In Place

Power Supply

24 VAC

Selection Guide


Timing (sec)



10 in-lb


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