Schneider Electric (Barber Colman) MP-381 Actuator

The Schneider Electric MP-381 is a high-torque proportional actuator engineered for precise modulation of dampers and valves in large-scale HVAC systems. Operating on 24V AC, this non-spring return actuator delivers a robust 220 lb-in torque, ensuring reliable positioning for heavy-duty airflow or fluid control applications. With 180-degree rotation and a 130-second timing interval at no load, it provides synchronized response times and steady control loop stability. This unit features an integrated SPDT auxiliary switch, allowing for easy end-of-travel signaling or equipment sequencing. Designed for backwards compatibility, the MP-381 serves as the direct professional replacement for legacy Barber Colman EYCC series actuators, including the EYCC-11001M and EYCC-523-1 variants. Its die-cast housing and heavy-duty gear train make it a standard choice for contractors managing BAS automation systems that require long-term durability and high-force output without the risk of spring-return failure during power loss.

Key Benefits

• High Torque Output: Rated at 220 lb-in to handle large multi-section dampers and high-pressure valve linkages.
• Broad Compatibility: Direct replacement for multiple discontinued Barber Colman EYCC models, streamlining field retrofits.
• Precision Control: Utilizes a proportional control signal for exact positioning across the full 180-degree stroke.
• Integrated Auxiliary Switch: Built-in SPDT switch simplifies wiring for interlocks and status verification.
• Standard 24V Power: Compatible with standard Class 2 transformers commonly found in commercial HVAC control circuits.

Common Questions

What is the best replacement for a Barber Colman EYCC-523-1?
The Schneider Electric MP-381 is the direct technical replacement for the EYCC-523-1, featuring the same torque ratings and mounting specifications.

Does the MP-381 have a fail-safe position?
No, this is a non-spring return actuator. It will remain in its last position upon loss of power, making it ideal for applications where sudden closure is not desired.

Can I use this actuator with 120V power?
No, the MP-381 actuator is strictly for 24V AC operation. Applying line voltage will damage the internal motor and electronics.

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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.