Schneider Electric (Barber Colman) MA6-418-500 Actuator

The Schneider Electric (Barber Colman) MA6-418-500 is an industrial-grade 120V explosion proof actuator specifically engineered for high-stakes environments. This two-position, spring-return unit is designed to drive dampers and globe valves that require reliable mechanical motion under terminal block logic control. Built within a rugged NEMA 4 hazardous location housing, it features an oil-immersed gear train and motor to ensure long-term lubrication and consistent 60 lb-in torque output. As a veteran in the field, you know these units are built for durability in Class I or Class II rated areas where standard actuators fail. This model operates with a rotary 180-degree clockwise motion upon power application and provides a fail-safe return to the original position when de-energized. The integrated auxiliary switch (SPDT) allows for easy integration into sequencing or status feedback circuits. Note that the MA6-418-500 is the direct replacement for MA6-418, fitting the same footprint for seamless field upgrades.

• Hazardous Location Protection: Features a 120 VAC X-PRF certified enclosure suitable for complex industrial safety requirements.
• Enhanced Mechanical Life: The oil immersed motor and gearbox reduce friction and internal wear during high-cycle operation.
• Integrated Logic: Includes a built-in SPDT auxiliary switch to handle control logic without requiring secondary field-installed relays.
• Fail-Safe Security: Robust spring return actuator mechanism ensures the system defaults to a safe state during power loss.
• Field-Ready Compatibility: Standard terminal block connections and 60 lb-in torque rating make it a drop-in Barber Colman replacement for older MA6 series motors.

Is this a direct replacement for the MA6-418?
Yes, the MA6-418-500 is the current production direct replacement for the legacy MA6-418 model, maintaining all critical mounting and performance specifications.

Can this actuator be mounted in any orientation?
While the Barber Colman actuator is versatile, the output shaft must remain in a horizontal position for proper operation of the oil-immersed gear train.

What is the maximum torque rating for this unit?
This 120V motor is rated for 60 lb-in (6.8 N-m) of torque, providing sufficient power for standard commercial dampers and small to medium-sized globe valves.

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.