Schneider Electric (Barber Colman) MF41-6043 Actuator

The Schneider Electric MF41-6043 is a high-torque, 24V floating actuator designed for precise control of damper and valve assemblies in commercial HVAC systems. Providing 35 lb-in torque, this non-spring return (NSR) unit is a rugged replacement for legacy Barber Colman hardware, specifically serving as the direct replacement for MF-6103, MF40-6043, and MF4E-60430-100 series. Unlike its predecessors, the MF41-6043 features an integrated manual override, allowing technicians to manually position the damper during commissioning or system troubleshooting without power. Designed for three-wire floating control, it integrates seamlessly with DDC controllers and thermostat interfaces to manage airflow in VAV terminals and small air handling units. Its compact footprint supports direct-coupled mounting on round or square shafts, ensuring a secure mechanical link and reducing slop in the linkage. This actuator is engineered for high-cycle reliability in demanding environmental conditions, maintaining stable positioning and consistent timing across its full 90-degree stroke.

Key Benefits:

• Increased Field Flexibility: The onboard manual override button permits instant manual positioning, streamlining the startup and testing process.
• Broad Compatibility: Serves as a Barber Colman replacement actuator for several discontinued models, maintaining existing wiring logic and physical footprints.
• Reliable Floating Control: Optimized for 24VAC damper actuator applications requiring three-point floating signals for incremental positioning.
• Durable Non-Spring Return: Engineered for 35 lb-in torque output, providing sufficient force for multi-blade dampers without the complexity of a mechanical return spring.
• Simple Installation: Supports direct-coupled mounting, eliminating the need for complex external linkages in standard damper motor retrofits.

Common Questions:

Can the MF41-6043 replace the old MF-6103 exactly?
Yes, the MF41-6043 replacement for the MF-6103 is a direct mechanical and electrical match, though it adds the manual override feature which the original unit lacked.

What type of control signal does this actuator require?
This is a floating control actuator, requiring a three-wire SPDT signal (Common, Open, and Close) to drive the motor in either direction.

What happens to the damper position if power is lost?
As a non-spring return actuator, the MF41-6043 will maintain its last position upon loss of 24V power until power is restored or the manual override is engaged.

This item is not eligible for free shipping.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.