Barber Colman MP-5233 Actuator

The Barber Colman MP-5233 is a 24V AC modulating damper actuator designed for precise proportional control in HVAC systems. Part of the MP-5200 Series, it features a spring return mechanism that ensures the actuator returns to its fail-safe position upon power loss. This actuator is suitable for applications requiring accurate positioning of dampers.​

Technical Specifications

  • Model: MP-5233

  • Type: Electronic modulating damper actuator

  • Voltage: 24V AC

  • Control Signal: 2 to 15 VDC input (nominal 3 VDC operating span)

  • Input Impedance: 10,000 Ω or greater

  • Stroke Length: 2 inches (51 mm)

  • Torque: 1.86 in-lb (0.21 N·m)

  • Spring Return: Yes

  • Power Consumption: 12.0 W

  • Operating Temperature Range: -20°F to 140°F (-29°C to 60°C)

  • Enclosure Rating: NEMA Type 1

  • Condition: New​

Key Features

  • Provides precise modulating control for HVAC dampers

  • Spring return mechanism ensures safety during power loss

  • Compact design suitable for various installations

  • Designed for 24V AC power supply

Compatible Applications

  • HVAC systems requiring modulating damper control

  • Ventilation and exhaust systems

  • Applications where precise damper positioning is critical

Installation & Maintenance Notes

  • Ensure proper alignment during installation to prevent binding

  • Verify electrical connections match the actuator’s specifications

  • Regularly inspect for signs of wear or damage

  • Follow manufacturer guidelines for maintenance procedures


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