Barber Colman MP-461-111 Valve ActuatorBarber Colman MP-461-111 Valve Actuator
120v with Built-In Feedback Potentiometer

The Barber Colman MP-461-111 is a proportional electric valve actuator designed for precise control in HVAC and industrial automation systems. Operating on 120 VAC, it features a built-in feedback potentiometer, enabling accurate positioning and integration with control systems.

Technical Specifications

  • Model: MP-461-111
  • Type: Proportional electric valve actuator
  • Voltage: 120 VAC
  • Torque Output: 50 lb-in (5.6 Nm)
  • Timing: 90 seconds for 180° rotation (no load)
  • Rotation: Adjustable from 45° to 320°
  • Spring Return: Clockwise (CW) upon power loss
  • Feedback Potentiometer: 1000 Ω slidewire
  • Housing: Die-cast aluminum with two 1/2″ conduit openings
  • Operating Temperature: -40°F to 136°F (-40°C to 58°C)
  • Humidity Range: 5% to 95% RH, non-condensing
  • Mounting: Direct coupling to valve or damper shafts

Key Features

  • Proportional control for precise modulation of valves
  • Built-in feedback potentiometer for accurate position monitoring
  • Spring return mechanism ensures fail-safe operation
  • Rugged construction suitable for demanding environments
  • Compatible with various control signals and systems

Compatible Applications

  • HVAC systems requiring modulating valve control
  • Industrial process control applications
  • Building automation systems
  • Energy management systems

Installation & Maintenance Notes

  • Ensure proper alignment with valve or damper shafts during installation
  • Verify electrical connections comply with local codes and standards
  • Regularly inspect actuator for signs of wear or damage
  • Follow manufacturer guidelines for calibration and maintenance

We ship this product worldwide! Delivery is normally stock.

Request a Quote now or call us at 1-800-755-2883 for expert assistance.

MP461111

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