KMC Controls MEP-4552 Actuator

The KMC Controls MEP-4552 Actuator is a high-performance proportional control actuator designed for precise regulation of HVAC dampers and valves. Operating on a 24VAC/DC power supply, this direct-coupled unit delivers a minimum 45 in-lb torque to ensure reliable operation in demanding commercial environments. It features capacitor-driven fail-safe technology, allowing for consistent performance and switch-selectable fail direction in the event of power loss. Engineered for technical efficiency, the MEP-4552 includes "anti-jitter" circuitry to prevent hunting and unnecessary wear caused by undamped analog signals. This modulating actuator accepts 0-10 or 2-10 VDC inputs and provides a proportional voltage feedback signal for real-time monitoring through building automation systems. The compact NEMA 2/IP54 housing supports direct mounting to 1/4" to 5/8" round or 1/4" to 7/16" square shafts, eliminating the need for complex linkages. With a drive time of less than 35 seconds for 90-degree rotation, the KMC MEP-4552 provides the speed and accuracy required for modern air handling and terminal unit applications.

• Precise Control: Features proportional 2-10 VDC modulation with built-in anti-jitter circuitry to extend the life of damper components by reducing hunting.
• Electronic Fail-Safe: Efficient capacitor-driven fail-safe mechanism provides reliable emergency positioning without the bulk of mechanical spring returns.
• Versatile Compatibility: Mounts directly to standard round or square shafts; compatible with a 24VAC/DC power source and standard building automation controllers.
• Simplified Installation: Equipped with a gear disengagement button for manual positioning and removable terminals for streamlined field wiring.

What is the fail-safe direction for the KMC MEP-4552?
The fail-safe direction is switch-selectable, allowing contractors to configure the actuator for either clockwise (CW) or counter-clockwise (CCW) return upon power loss.

Can I use this actuator for both dampers and valves?
Yes, the MEP-4552 is designed for direct-coupled damper actuator applications and can be adapted for valve control when paired with compatible KMC valve bodies and brackets.

How does "auto-mapping" work on this model?
The user-initiated auto-mapping feature reassigns the full 2-10 VDC input signal range over a reduced rotation range, ensuring high-resolution control even when the full 95-degree stroke is not utilized.

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.