Description
The Schneider Electric (Barber Colman) MP-451 is a heavy-duty proportional actuator engineered for reliable, precise damper and valve control in commercial and industrial HVAC systems. Designed for demanding building automation applications, this actuator delivers high torque output and smooth, proportional modulation to maintain accurate airflow and system balance.
Key Features
- 120 V operating voltage for compatibility with standard commercial control circuits
- 220 lb-in output torque for dependable actuation of large dampers and valves
- 80-second timing (no load) for smooth, controlled proportional positioning
- Non spring return design — maintains last position on power loss
- SPDT auxiliary switch for end-of-travel signaling and interlock applications
- 180-degree rotation range for versatile damper and valve configurations
- Proportional control for precise, stepless modulation in response to control signals
Application
The MP-451 is well-suited for use in commercial HVAC air handling units, VAV systems, and hydronic control applications where high torque and accurate proportional positioning are required. The built-in SPDT auxiliary switch enables integration with building automation systems, providing end-position feedback or enabling downstream equipment sequencing.
Specifications
- SKU: MP-451
- Brand: Schneider Electric (Barber Colman)
- Supply Voltage: 120 V
- Output Torque: 220 lb-in
- Timing (No Load): 80 seconds
- Spring Return: Non spring return
- Auxiliary Switch: SPDT
- Rotation: 180 degrees
- Control Type: Proportional
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