Schneider Electric (Barber Colman) MS40-7170 120V 150 lb-in Proportional Spring Return Direct Mount Actuator

The Schneider Electric (Barber Colman) MS40-7170 is a robust, direct-mount damper actuator engineered for demanding commercial HVAC applications. Delivering 150 lb-in of torque at 120V, this proportional spring-return actuator provides precise, modulating control of dampers in air handling, ventilation, and building automation systems.

Key Features

• 120V AC supply voltage for compatibility with standard commercial control circuits
• 150 lb-in torque output for reliable actuation of medium to large dampers
• Proportional (modulating) control signal for accurate, stepless damper positioning
• Spring-return fail-safe operation — returns damper to a safe position on power loss
• Direct-mount design eliminates the need for crank arms or linkage, simplifying installation
• Compact, rugged housing suitable for commercial and light industrial HVAC environments
• Part of the trusted Schneider Electric (Barber Colman) MS-Series actuator family

Applications

• Commercial air handling units (AHUs)
• VAV and constant-volume damper control
• Outside air, return air, and exhaust dampers
• Building automation and energy management systems

Specifications

• Brand: Schneider Electric (Barber Colman)
• Model / SKU: MS40-7170
• Supply Voltage: 120V AC
• Torque: 150 lb-in
• Control Type: Proportional (Modulating)
• Return Type: Spring Return (Fail-Safe)
• Mounting: Direct Mount