The Barber Colman MC-351 is a two-position, non-spring return electric damper actuator designed for HVAC systems requiring reliable open/close control. Operating on 24V AC, it delivers 220 in-lb of torque and features a robust, oil-immersed gear train for enhanced durability.
Technical Specifications
-
Model: MC-351
-
Type: Electric damper actuator
-
Voltage: 24V AC
-
Control Signal: Two-position (on/off)
-
Torque: 220 in-lb
-
Run Time: 70 seconds no load
-
Spring Return: No (non-spring return)
-
Auxiliary Switch: SPDT included
-
Housing: Die-cast aluminum, NEMA 1 rated
-
Operating Temperature Range: -40°F to 136°F (-40°C to 58°C)
-
Power Consumption: 53 VA
-
Electrical Connection: Terminal block
-
Condition: New
Key Features
-
Provides reliable two-position control for HVAC dampers
-
Oil-immersed gear train ensures smooth operation and longevity
-
SPDT auxiliary switch allows for additional control functions
-
Rugged die-cast aluminum housing suitable for various environments
Compatible Applications
-
HVAC systems requiring two-position 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
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance