Description
The Schneider Electric (Barber Colman) MP-424 is a heavy-duty proportional actuator engineered for precise damper and valve control in commercial and industrial HVAC systems. Carrying the trusted Barber Colman legacy now backed by Schneider Electric’s global engineering expertise, the MP-424 delivers reliable, repeatable positioning performance in demanding building automation applications.
Key Features
- 120 V operating voltage for compatibility with standard commercial HVAC control circuits
- 60 lb-in output torque for positive, authoritative damper and valve actuation
- 13–130 second timing range (no load) for flexible proportional control response
- Non-spring return design — actuator holds last position on power loss
- SPDT auxiliary switch included for end-of-travel signaling and interlock applications
- 90-degree rotation for standard quarter-turn damper and ball valve applications
Product Specifications
- SKU: MP-424
- Brand: Schneider Electric (Barber Colman)
- Supply Voltage: 120 V
- Output Torque: 60 lb-in
- Timing (No Load): 13–130 seconds
- Return Type: Non-Spring Return
- Auxiliary Switch: SPDT
- Rotation: 90 Degrees
- Control Type: Proportional
Application
The MP-424 is ideal for use in VAV systems, air handling units, economizer dampers, and two-position or modulating valve applications. Its proportional control capability allows the actuator to position the damper or valve blade precisely in response to a modulating control signal, making it well-suited for energy-efficient building automation and HVAC zoning strategies. The integrated SPDT auxiliary switch provides a convenient dry-contact output for end-of-stroke indication, fan interlock, or alarm signaling.
Why Choose the Schneider Electric MP-424?
- Proven Barber Colman design with decades of field-proven reliability
- Proportional control for precise, energy-efficient damper positioning
- Non-spring return holds actuator position during power interruptions
- Built-in SPDT switch simplifies wiring for interlock and status circuits
- 90-degree rotation fits the most common damper and quarter-turn valve configurations
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