MEP-7851 | Damper Actuator | 320 in-lb | Electronic Fail-Safe | 24V | Floating | KMC Controls

MEP-7851: 24V 320Lbs FLTNG FAIL/SAFE by KMC Controls The MEP-7851 is a 24V floating fail/safe linear actuator with a 320-pound lifting capacity. It is designed for use in industrial and commercial applications where precise positioning and reliable operation are required. The MEP-7851 is constructed with a durable aluminum housing and stainless steel shaft, providing excellent corrosion resistance and long-lasting performance. It features a compact design, making it suitable for applications where space is limited. The MEP-7851 is equipped with a variety of advanced features, including: - Fail-safe operation: In the event of a power failure, the actuator will automatically return to its home position, ensuring safety and reliability. - Adjustable limit switches: The actuator's limit switches can be adjusted to set the desired travel range, providing precise positioning control. - Hall effect sensors: Hall effect sensors provide accurate feedback on the actuator's position, enabling precise control and monitoring. The MEP-7851 is a versatile actuator that can be used in a wide range of applications, including: - Industrial automation - Robotics - Medical devices - Aerospace - Defense Shop our HVAC supply store for the best prices and fast shipping on the MEP-7851 linear actuator.

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 180 or 320 in-lb. 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, 2–10 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, 2–10 VDC, or 4–20 mA) input signal range over a reduced rotation range (from 45° to 94°). Proportional input models also feature a switch-selectable, voltage feedback output that is proportional to the actuator position. With the 0–10 VDC input, feedback options are 0–5 or 0–10 VDC, and with 2–10 VDC or 4–20 mA inputs, feedback options are 1–5 or 2–10 VDC.

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. Fail-safe models also allow two-position control as well.

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.

(If lower torque is required, see also the MEP-4200/4500/4900 series.