Description
Schneider Electric (Barber Colman) MS51-7103-150 Overview
The Schneider Electric MS51-7103-150 is a 24V spring return damper actuator engineered for proportional control in commercial and industrial HVAC systems. Featuring a 0–10VDC proportional control signal and a robust 105 in-lb torque output, this actuator delivers precise, reliable damper positioning across a wide range of air-handling and building automation applications. Formerly marketed under the Barber Colman brand, this unit carries the trusted engineering legacy now backed by Schneider Electric’s global quality standards.
Key Features
- Supply Voltage: 24V AC/DC
- Control Signal: 0–10VDC proportional
- Torque Output: 105 in-lb
- Spring Return (SR) fail-safe operation — returns to a defined position on power loss
- Proportional modulating control for precise damper positioning
- Compatible with standard building automation and DDC control systems
- Formerly Barber Colman — now manufactured under Schneider Electric
Application
The MS51-7103-150 is ideal for use with variable air volume (VAV) systems, air handling units (AHUs), and damper control applications where accurate proportional positioning and fail-safe spring return are required. Its 0–10VDC input makes it directly compatible with most modern DDC controllers and building automation systems (BAS).
Why Choose the MS51-7103-150
With spring return functionality, the actuator automatically returns to its fail-safe position in the event of a power interruption, helping protect your HVAC system and maintain building safety. The 105 in-lb torque rating ensures dependable performance even on larger or tighter damper assemblies. Backed by Schneider Electric’s reputation for quality and innovation, this actuator is a trusted choice for HVAC professionals and building automation engineers alike.
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