Schneider Electric (Barber Colman) MA40-7040 Actuator

The Schneider Electric (Barber Colman) MA40-7040 Actuator is a robust, two-position spring return actuator engineered for the fail-safe control of dampers and valves in commercial HVAC systems. Operating on 120V AC, this DuraDrive actuator provides a reliable 35 lb-in torque (4 N-m), ensuring positive close-off in air-tight applications. It is the designated direct replacement for MA40-LF120, featuring a universal clamp that accommodates round shafts up to 5/8" or square shafts up to 1/2".

Designed for the rigors of mechanical rooms, the MA40-7040 utilizes a brushless DC motor with an overload-protected gear train, eliminating the need for limit switches. Its rugged NEMA 2 (IP54) die-cast housing allows for flexible mounting in various orientations. With a visual position indicator and a 95-degree rotation capability, this direct-coupled actuator streamlines installation for contractors looking for on-off damper control with a mechanical fail-safe.

• Precise Torque Delivery: Delivers consistent 35 lb-in torque for reliable fail-safe operation in HVAC damper and valve assemblies.
• Universal Compatibility: The factory-installed clamp fits multiple shaft geometries, reducing the need for additional mounting kits.
• Low Maintenance: Features overload protection throughout its rotation, extending the cycle life of the motor and internal components.
• Optimized Energy Use: High efficiency with only 3.4 Watts running and 1.2 Watts holding power consumption.

• Is the MA40-7040 compatible with the older MA40-LF120? Yes, this unit is the official Schneider Electric direct replacement for the discontinued MA40-LF120 series.
• Can this actuator be used for valve control? While primarily used for dampers, it is compatible with specific Schneider Electric valve linkages for 2-way and 3-way water valve applications.
• Does it include an auxiliary switch? The base MA40-7040 model does not include internal switches; however, the MA40-7040-501 variation typically includes a built-in SPDT auxiliary switch.

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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.