The Barber Colman MP453 is a 120V capacitor-driven proportional actuator designed for precise control of dampers, valves, and program switches in HVAC and industrial automation systems. Part of the trusted MP series, this actuator supports two-position, floating, and proportional control modes. Built with a rugged die-cast aluminum housing and oil-immersed motor and gear train, the MP453 delivers long-lasting durability in both standard and hazardous environments. Models intended for hazardous locations feature a cast aluminum case with bolted cover and 3/4″ pipe-tapped conduit openings. The MP453 is UL listed for safe, compliant installations.
Technical Specifications
• Model: MP453
• Type: Proportional Electric Actuator
• Voltage: 120V
• Drive Type: Capacitor driven
• Control Modes: Two-position, floating, and proportional
• Enclosure: Die-cast aluminum housing
• Hazardous Location Model: Cast aluminum with bolted cover and (2) 3/4″ pipe-tapped conduit ports
• Motor & Gear Train: Oil-immersed for extended life
• Feedback: Built-in feedback potentiometer
• Conduit Openings: (2) 1/2″ standard (non-hazardous); (2) 3/4″ (hazardous models)
• Certification: UL Listed
• Manufacturer: Barber Colman (Schneider Electric)
Key Features
• Proportional actuator with integral feedback potentiometer
• Compatible with multiple control modes (2-position, floating, proportional)
• Die-cast aluminum housing offers durability in demanding environments
• Hazardous location models built with safety-rated enclosures
• Oil-immersed motor and gear train for quiet, reliable operation
• Separate terminal wiring simplifies field installation
Compatible Components & Accessories
• Barber Colman dampers and valves
• Schneider Electric HVAC control systems
• Linkage kits and mounting hardware
• Programmable logic and feedback controllers
Industry Applications
• Commercial HVAC zone and system control
• Building automation and industrial ventilation
• Institutional heating and cooling systems
• Hazardous location ventilation and fluid control
• Valve and damper modulation in energy management
Installation & Maintenance Notes
• Mount actuator securely using compatible linkage or brackets
• Ensure electrical connections are made through specified conduit openings
• Connect to control signal per configuration (proportional, floating, or 2-position)
• For hazardous locations, verify enclosure rating and compliance with local codes
• Periodically inspect motor performance and gear lubrication integrity
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance