KMC Controls MEP-7552 Actuator

The KMC Controls MEP-7552 is a high-torque direct-coupled actuator engineered for precise modulation of large control dampers and valves in commercial HVACR systems. Delivering a robust 180 in-lb torque, this proportional control actuator operates on a 24V VAC/VDC power supply, making it a reliable solution for heavy-duty airflow management. It features a capacitor-driven fail-safe mechanism with switch-selectable direction, ensuring predictable positioning during power loss without the mechanical fatigue associated with traditional spring returns. With a runtime of 90-115 seconds for 90-degree rotation, the MEP-7552 supports 0-10 VDC, 2-10 VDC, or 4-20 mA input signals. It also includes anti-jitter circuitry to prevent hunting and a gear disengagement button for easy manual positioning. This unit is housed in a durable NEMA 2 enclosure and includes removable terminals for streamlined field wiring.

Key Benefits

• High Torque Capacity: Provides 180 in-lb of force, suitable for dampers up to approximately 45 square feet.
• Precision Modulation: Integrated anti-jitter technology ensures stable positioning under varying proportional control signals.
• Flexible Fail-Safe: Capacitor-driven design offers customizable fail-open or fail-closed directions for critical system protection.
• Simplified Installation: Features removable screw terminals and 1/2-inch NPS conduit fittings to reduce labor time for HVAC technicians.
• Versatile Compatibility: Accepts multiple analog input types (VDC and mA) for seamless integration with most building automation systems.

Common Questions

How do I set the fail-safe direction on the MEP-7552?
The fail direction is easily configured via a physical switch located on the actuator housing, allowing you to select between clockwise or counter-clockwise failure upon power loss.

Does this actuator require external limit switches?
No, the KMC MEP-7552 is protected against overloading throughout its entire stroke and does not require end or limit switches to prevent motor burnout.

What size drive shaft can this actuator accommodate?
This model is designed for direct mounting onto standard round shafts from 3/8" to 1.05" or square shafts from 5/16" to 5/8".

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.