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These powerful, efficient, durable, direct-coupled actuators provide tri-state or proportional control for large control air dampers or valves in HVAC systems. A minimum torque of 120, 180, or 320 in-lbs. is available over the 94° angular rotation. Capacitor-driven fail-safe models provide durable, efficient operation with switch-selectable fail direction.
The proportional actuator models accept a 0–10 VDC or 4–20 mA control signal input from a thermostat, controller, or building automation system. “Anti-jitter” circuitry significantly reduces hunting and needless wear on the actuator and valve packing or damper components (from unnecessary miniscule position changes caused by undamped analog input signals). A user-initiated, auto-mapping feature provides more precise equipment control by reassigning the (0–10 VDC or 4–20 mA) input signal range over a reduced rotation range (from 45° to 94°). These models also feature a switch-selectable, 0–5 or 0–10 VDC voltage feedback output that is proportional to the actuator position.
The tri-state models are designed for use with floating thermostats, controllers, or building automation systems. They feature an optional 10K ohm (±10%), three-wire potentiometer feedback output.
All actuators mount directly on 3/8" up to 1.05" round or 5/16" up to 5/8" 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 damper and/or gear train without energizing the actuator. Removable terminals and 1/2" NPS conduit fittings make wiring easier. The actuators are protected against overloading and do not require end or limit switches.
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MEP-7201
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 120 in.-lb., 75-90 sec. |
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MEP-7202
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(Download)
| ACTUATOR, 24VAC/VDC, proportional, 120 in.lb., 75-90 seconds |
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MEP-7203
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 120 in.-lb., 75-90 sec., with feedback pot. Same as MEP-7201 but with feedback pot. |
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MEP-7251
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 120 in.-lb., 75-90 sec., Failsafe |
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MEP-7252
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(Download)
| ACTUATOR, 24VAC/VDC, proportional, 120 in.lb., 75-90 seconds, failsafe. |
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MEP-7253
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 120 in.-lb., 75-90 sec., failsafe with feedback pot. Same as MEP-7251 but with feedback pot. |
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MEP-7501
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 180 in.lb,, 90 - 115 seconds. |
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MEP-7502
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(Download)
| Actuator, 24 VAC/VDC, proportional, 180 in.lb., 90 - 115 seconds. |
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MEP-7503
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 180 in.lb,, 90 - 115 seconds, feedback pot |
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MEP-7551
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 180 in.lb,, 90 - 115 seconds, failsafe |
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MEP-7552
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(Download)
| Actuator, 24 VAC/VDC, proportional, 180 in.lb., 90 - 115 seconds, failsafe |
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MEP-7553
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 180 in.lb,, 90 - 115 seconds, feedback pot, failsafe |
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MEP-7801
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 320 in.lb., 90 - 115 seconds. |
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MEP-7802
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(Download)
| Actuator, 24 VAC/VDC, proportional, 320 in.lb., 90 - 115 seconds. |
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MEP-7803
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 320 in.lb., 90 - 115 seconds,feedback pot. |
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MEP-7851
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 320 in.lb., 90 - 115 seconds, failsafe. |
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MEP-7852
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(Download)
| Actuator, 24 VAC/VDC, proportional, 320 in.lb., 90 - 115 seconds, failsafe |
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MEP-7853
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(Download)
| Actuator, 24 VAC/VDC, Tristate, 320 in.lb., 90 - 115 seconds, feedback pot, failsafe. |
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