Description
The Schneider Electric (Barber Colman) MS51-7103-140 is a 24V spring return damper actuator engineered for precise proportional control in commercial HVAC and building automation applications. Designed to deliver reliable, fail-safe performance, this actuator responds to a 6–9 VDC proportional control signal, enabling accurate modulation of damper position to maintain optimal airflow and system efficiency.
Key Features
- 24V AC/DC power supply for broad compatibility with commercial control systems
- Spring return (SR) fail-safe operation — damper returns to a defined position on power loss
- 6–9 VDC proportional control signal for precise, modulating damper positioning
- 105 in-lb torque output to handle demanding damper loads
- Manual override (ManOv) for commissioning, testing, and emergency operation without power
- Compact, robust housing suitable for commercial and light industrial environments
Product Specifications
- Brand: Schneider Electric (Barber Colman)
- SKU / Part Number: MS51-7103-140
- Supply Voltage: 24V
- Control Type: Proportional (6–9 VDC)
- Actuator Type: Spring Return
- Torque: 105 in-lb
- Manual Override: Yes
Applications
- VAV and CAV air handling systems
- Commercial HVAC damper control
- Building automation and energy management systems
- Outside air, exhaust, and mixed-air dampers
The MS51-7103-140 is a trusted solution for HVAC professionals seeking dependable proportional damper actuation with the added confidence of spring return fail-safe functionality and manual override capability.
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