The Barber Colman MS-1233 is a compact, electronic damper actuator designed for precise proportional control of HVAC dampers and air handling systems. Operating at 24V with a standard 4–20 mA DC input signal, this actuator delivers accurate modulating control with a torque output of 20 lb-in. It is ideal for applications requiring consistent airflow regulation and smooth actuator response in ventilation, zoning, and energy management systems.
Technical Specifications
- Model: MS-1233
- Type: Electronic Damper Actuator
- Control Type: Proportional (Modulating)
- Input Signal: 4–20 mA DC
- Power Supply: 24V, 50/60 Hz
- Torque Output: 20 lb-in
- Motion Type: Rotary
- Mounting: Direct mount or bracketed to damper shaft
- Housing: Compact design for tight installations
- Condition: New
Key Features
- 4–20 mA proportional input for precise modulating control
- 20 lb-in torque output suitable for small to medium damper applications
- Quiet, efficient electronic motor operation
- Designed for continuous-duty use in HVAC zoning and airflow regulation
- Operates on 24V low-voltage power systems
- Provides smooth and reliable position control in automated systems
Compatible Applications
- VAV boxes and terminal units
- Supply, return, and exhaust air dampers
- Zoned heating and cooling systems
- Air handlers and ventilation units
- Building automation and energy management systems
Installation & Maintenance Notes
- Wire actuator to match 4–20 mA control signal source
- Ensure 24V power supply is stable and properly fused
- Mount actuator securely to damper shaft or bracket
- Verify full-range motion and torque delivery during commissioning
- Periodically inspect wiring connections and test control response
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance