Schneider Electric (Barber Colman) MP-465 Actuator

The Schneider Electric MP-465 is a high-torque proportional actuator engineered for precise modulation of dampers, globe valves, and program switches in heavy-duty HVACR systems. Operating on a 120V power supply, this gear-train driven motor delivers a consistent 50 lb-in torque, ensuring reliable control even in high-static environments. As a direct drop-in replacement for the Barber Colman EA-42, it features an oil-immersed motor for superior heat dissipation and extended service life. The unit is designed with a spring return clockwise safety fail-safe and an integrated transformer, simplifying field installation by eliminating the need for external power step-downs for the 2 to 12 Vdc control signal. With a 90-second timing and 180-degree rotation, the MP-465 actuator provides the repeatable performance required for Microtherm proportional systems and various DDC controller applications.

• Spring Return Fail-Safe: Ensures dampers or valves return to a clockwise position upon power loss for system protection.
• Internal Transformer: Built-in 120 VAC to 24 VAC conversion reduces wiring complexity and external component costs.
• High Output Torque: 50 lb-in capacity supports larger damper assemblies and proportional globe valve linkages.
• Auxiliary Switch Integration: Includes a factory-standard SPDT auxiliary switch for position feedback or sequencing peripheral equipment.
• Cross-Compatibility: Identical specifications to the Barber Colman EA-42, allowing for seamless legacy system upgrades.

Common Questions

Can the MP-465 be used for on/off control?
While optimized for proportional modulation via a 2-12 Vdc signal, this 120V actuator can be configured for two-position control or floating control depending on the wiring of terminal X and the use of snap-acting SPDT switches.

Is the rotation adjustable on this model?
The standard MP-465 provides a fixed 180-degree rotation. For applications requiring specific stroke limits, ensure your linkage is calibrated correctly, as changing the internal rotation travel can affect the feedback potentiometer accuracy.

What controllers are compatible with the built-in transformer?
The internal transformer secondary leads are typically wired to terminals 7 and 8, specifically designed for Barber Colman Microtherm series or AE-504 paralleling relays. For other controllers, these leads should be taped off.

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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.