MEP-4672Q | Actuator: Proportional/2-Pos., 24 VAC/VDC, Failsafe, 54 in-lb, 3-sec/90-deg., 2 Aux-Sw.

These compact but powerful direct-coupled ControlSet® actuators provide 90° rotation within three seconds. A minimum torque of 54 in-lb. is available over the 95° angular rotation. These actuators are designed for dampers or valves in critical HVAC, laboratory fume hood, and life-safety applications.

Efficient, durable, capacitor-driven fail-safe operation (in MEP-4652Q/4672Q) with switch-selectable direction provides consistent torque in both powered and fail-safe modes.

The actuators offer proportional or two-position control. Two-position control mode is designed for use with on/off switches, thermostats, or controller outputs.

Proportional control mode accepts either a 0-10 or 2-10 VDC control signal input from a thermostat or controller. With an external 500 ohm resistor, a 0-20 or 4-20 mA control signal is also accepted. A switch-selectable, 0-5 or 0-10 (or 1-5 or 2-10) VDC voltage feedback output is proportional to the actuator position and is standard on all models. “Anti-jitter” circuitry significantly reduces hunting and needless wear (from unnecessary miniscule position changes caused by undamped analog input signals) on the actuator, valve, or damper components. A user-initiated, auto-mapping feature provides more precise equipment control by reassigning the input signal range over a reduced rotation range. The feature also provides “soft stall” protection (from stalling hard against a physical stop) that extends actuator life.

MEP-4622Q and MEP-4672Q models also have two built-in SPDT auxiliary switches for remote position indication or an auxiliary equipment interface. One switch is fully adjustable (0 to 90°) and the other is fixed at 10° from full CW direction. A three-foot cable is included with the switches.

All actuators mount 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 easy manual positioning of the actuator.