Allen-Bradley Z-31850 Yoke And Armature Assembly

The Allen-Bradley Z-31850 Yoke & Armature Assembly provides the electromagnetic actuation necessary to engage and disengage contact assemblies in Size 3 motor starters, making it a precise replacement part for Allen-Bradley contactors and motor starters used in industrial motor control systems. This starter-mounted assembly combines the yoke and armature into a single, install-ready unit that delivers reliable actuation and switching performance essential for continuous equipment operation. It is commonly used by maintenance teams, electricians, and system integrators for repair, maintenance, and preventive maintenance to sustain dependable starter operation within industrial electrical control equipment. Typical applications include industrial control panels, manufacturing equipment, motor starter assemblies, and automation systems that utilize Allen-Bradley Size 3 starters, where consistent electromagnetic movement is required to correctly actuate protection and switching contacts. The product is compatible with Size 3 starters and serves as a targeted replacement for worn or degraded actuation components, aligning with common replacements such as the yoke assembly, armature assembly, and starter actuator assembly to maintain dependable control and performance.