Description
The Schneider Electric (Barber Colman) MP-371 is a high-performance proportional actuator engineered for precise damper and valve control in commercial HVAC and building automation applications. Designed to deliver reliable, repeatable positioning, this actuator is a trusted solution for VAV systems, air handling units, and other modulating control applications.
Key Features
- 24 V operating voltage for compatibility with standard low-voltage control systems
- 50 lb-in output torque for dependable actuation of dampers and valves
- 90-second timing (no load) for smooth, controlled positioning
- Spring return counter clockwise (CCW) fail-safe operation ensures the actuator returns to a defined safe position upon loss of power
- SPDT auxiliary switch provides end-of-travel signaling for integration with building automation or safety circuits
- 180-degree rotation for broad damper and valve compatibility
- Proportional control for precise, modulating positioning in response to a control signal
Technical Specifications
- Brand: Schneider Electric (Barber Colman)
- Model / SKU: MP-371
- Supply Voltage: 24 V
- Output Torque: 50 lb-in
- Timing (No Load): 90 seconds
- Spring Return Direction: Counter Clockwise (CCW)
- Auxiliary Switch: SPDT
- Rotation: 180 degrees
- Control Type: Proportional
Applications
- Variable air volume (VAV) damper control
- Air handling unit (AHU) damper positioning
- Modulating valve actuation in commercial HVAC systems
- Building automation and energy management systems
The spring return CCW fail-safe mechanism ensures that in the event of a power interruption, the actuator automatically returns to its counter-clockwise position, protecting equipment and maintaining system safety. The integrated SPDT auxiliary switch allows for end-of-travel feedback, enabling seamless integration with BAS controllers and alarm circuits. With 180-degree rotation, the MP-371 accommodates a wide range of damper and valve configurations, making it a versatile choice for new installations and retrofit projects alike.
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