Schneider Electric MS51-7103-140 24V Proportional Damper Actuator 105 lbf 6-9VDC

The Schneider Electric (Barber Colman) MS51-7103-140 is a proportional damper actuator designed for precise control of HVAC dampers in commercial building automation systems. This spring return actuator operates on 24VAC power and features 6-9VDC proportional control signal input for modulating damper positioning.

Key Features:

• 105 lbf (pound-force) torque rating for reliable operation of large commercial dampers
• 24VAC power supply with 6-9VDC proportional control signal
• Spring return mechanism for fail-safe positioning during power loss
• Proportional control for precise modulating damper control
• Includes manual override capability for maintenance and testing
• Durable construction for long-term reliability in commercial HVAC applications

This actuator is ideal for applications requiring proportional control of dampers in VAV systems, air handling units, and other commercial HVAC equipment where precise airflow control is essential. The spring return design ensures the damper returns to a predetermined position in the event of power failure, providing safety and system integrity.