Description
Schneider Electric (Barber Colman) MS41-6343 Overview
The Schneider Electric (Barber Colman) MS41-6343 is a 24V proportional, non-spring-return (NSR) damper actuator delivering 300 in-lb of torque. Engineered for commercial and industrial HVAC applications, this actuator provides smooth, precise modulating control of dampers in air handling units, VAV systems, and building automation environments. Its proportional control signal input allows for accurate positioning across the full range of damper travel, making it an ideal choice for demanding ventilation and energy management systems.
Key Features
- 24V AC/DC operating voltage for broad system compatibility
- Proportional (modulating) control for precise damper positioning
- Non-spring-return (NSR) design — damper holds last position on power loss
- 300 in-lb torque output — suitable for medium to large damper applications
- Compact, robust housing designed for reliable long-term performance
- Compatible with Schneider Electric / Barber Colman building automation and control systems
- Easy direct-coupled mounting for fast installation
Specifications
- Brand: Schneider Electric (Barber Colman)
- Model / SKU: MS41-6343
- Supply Voltage: 24V
- Control Type: Proportional (Modulating)
- Return Type: Non-Spring-Return (NSR)
- Torque Rating: 300 in-lb
- Application: Commercial / Industrial HVAC Damper Control
Applications
- Air handling units (AHUs)
- Variable air volume (VAV) systems
- Outside air and exhaust dampers
- Building automation and energy management systems
- Mixing boxes and economizer dampers
Why Choose the MS41-6343?
The MS41-6343 combines the trusted Barber Colman engineering legacy with Schneider Electric’s modern build quality. Its proportional control capability ensures precise airflow regulation, contributing to improved indoor air quality and energy efficiency. The non-spring-return design keeps the damper in its last commanded position during a power interruption, making it well-suited for applications where fail-in-place operation is preferred. With 300 in-lb of torque, this actuator handles a wide range of damper sizes without sacrificing responsiveness or accuracy.
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