Barber Colman MMC-90 Actuator

The Barber Colman MMC-90 is a modular actuator control module designed for precise positioning of dampers and valves in HVAC and process control systems. It operates with 24V power and accepts a variety of control signals, making it suitable for integration into diverse control environments.

Technical Specifications

  • Model: MMC-90

  • Type: Modular actuator control module

  • Power Supply: 24 VAC ±10%, 50/60 Hz

  • Power Consumption: 4.0 VA

  • Control Signal Inputs: 135Ω slidewire, 0–7 mADC, and 2-position SPST/SPDT (with resistor kit)

  • Compatible Actuators: MM and MMR Series Modular Motors

  • Electrical Stroke Adjustment: 90° to 160° via potentiometer (factory set at 160°)

  • Mounting: Plug-in mounting within MM or MMR series motors

  • Dimensions: 1.5″ H × 3.5″ W × 2.5″ D (38 mm × 89 mm × 64 mm)

  • Operating Temperature: -40°F to 140°F (-40°C to 60°C)

  • Humidity Range: 5% to 95% RH, non-condensing

Key Features

  • Accepts multiple control signal types for versatile integration

  • Adjustable stroke range to suit various applications

  • Plug-in design simplifies installation and maintenance

  • Compatible with a range of Barber Colman actuators

Compatible Applications

  • HVAC systems requiring modulating control of dampers and valves

  • Process control systems with modular actuator configurations

  • Building automation systems utilizing MM or MMR series actuators

Installation & Maintenance Notes

  • Ensure correct wiring of input signals and power supply

  • Adjust stroke range using the built-in potentiometer as needed

  • Verify actuator compatibility before installation

  • Regularly inspect for secure connections and proper operation


We ship this product worldwide! Delivery is normally stock.

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