Schneider Electric (Barber Colman) MP-475 Actuator

The Schneider Electric MP-475 (formerly Barber Colman MP-475) is a robust proportional electric actuator designed for heavy-duty modulation of dampers and globe valves in commercial HVACR systems. As a veteran technician knows, the oil-immersed gear train and motor within this spring return actuator ensure consistent lubrication and thermal regulation, providing reliable performance even in demanding environments. Operating on a 120V power supply, it delivers a rated 50 lb-in torque to handle air-side dampers or fluid-control valves with precision. This model features a built-in transformer and a single-pole double-throw (SPDT) auxiliary switch for integrated signaling. Designed for 180-degree rotation, the unit defaults to a fail-safe counter-clockwise position upon loss of power, making it a staple for safety-critical air handling sequences. Its die-cast aluminum housing and terminal block connections accommodate common field-wiring practices, ensuring straightforward installation for veteran contractors.

• Fail-Safe Operation: Mechanically-driven spring return counter-clockwise (CCW) ensures a safe system state during power outages.
• Durable Construction: Features an oil-immersed motor and gear train housed in a rugged die-cast aluminum NEMA 1 enclosure.
• Simplified Wiring: Includes a built-in transformer and coded screw terminals for efficient field integration.
• Versatile Control: Provides precision modulating control for high-torque damper and valve applications across various cooling and heating stages.
• Adjustable Feedback: Compatible with various series controllers for sequenced or parallel actuator operation.

Common Questions

The MP-475 is a dedicated spring return CCW (counter-clockwise) model. Upon loss of the 120V supply, the internal spring mechanism force-rotates the shaft to the counter-clockwise start position.

Yes. This Schneider Electric actuator is commonly used with VP-7313 series valves and standard air dampers that require up to 50 lb-in of torque.

As a proportional actuator, it typically interfaces with 2 to 12 VDC or 100 to 1000 ohm signals depending on the specific bridge circuit or controller being used.

This item is not eligible for free shipping.

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.