Schneider Electric (Barber Colman) M573-3111 Actuator

The Schneider Electric M573-3111 is a robust piston damper actuator designed for proportional control of dampers in precision HVAC systems. Engineered for reliability, this pneumatic actuator features a 3-inch stroke and a 5 to 10 psig spring range, ensuring accurate positioning under varying load conditions. It operates on a 20 psig nominal supply air pressure and utilizes a spring return mechanism that retracts the shaft upon loss of air pressure for fail-safe performance. This unit is the direct manufacturer replacement for the legacy 2473-130 and MK-573-31 models, allowing for seamless integration into existing Barber Colman setups. The kit includes a right-angle mounting bracket, ball joint, push rod, and crank arm compatible with a 1/2-inch damper shaft. Connection is simplified via a barbed fitting for 1/4-inch O.D. plastic tubing, making it a standard choice for commercial HVAC control applications requiring durable pneumatic damper control.

• Universal Compatibility: Serves as the precise drop-in replacement for 2473-130 and MK-573-0-0-1 series.
• Complete Installation Kit: Includes necessary linkage hardware for 1/2" shafts, reducing field fabrication time.
• Rugged Construction: Built for heavy-duty piston movement within demanding air handling units.
• Fail-Safe Operation: Mechanical spring return ensures the damper moves to a safe position during power or air loss.
• Simplified Integration: Standard barbed fittings allow for quick connection to existing pneumatic lines.

Is the M573-3111 compatible with older Barber Colman systems?

Yes, this unit is specifically designed to replace the MK-573 series and 2473-130 models, maintaining the same mounting footprint and technical specifications.

What damper shaft size does the included hardware support?

The provided crank arm and push rod assembly are designed to fit standard 1/2-inch diameter damper shafts.

Does this actuator include the mounting bracket?

Yes, the M573-3111 comes complete with a right-angle mounting bracket, ball joint, and the required pneumatic linkage hardware.

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.