Westinghouse A201K4CA Electric Magnetic Motor Starter

The Westinghouse A201K4CA Electric Magnetic Motor Starter is an industrial-grade, 135 A magnetic starter designed to start, switch, and protect electric motors within motor control systems. Sized at 4, it supports panel or enclosure mounting and provides reliable motor control and overload protection through a robust electromechanical starter assembly. In industrial settings, it's commonly installed in manufacturing equipment, pump systems, conveyor lines, HVAC equipment, and automation panels, enabling stable operation of heavy-duty machinery and process equipment. Key specifications include Brand: Westinghouse; Part Number: A201K4CA; Product Type: Electric Magnetic Motor Starter; Starter Size: Size 4; Current Rating: 135 A; Function: Motor switching and overload protection; System Compatibility: motor control and automation systems; and Application: industrial motor starting and protection. Common replacements listed for this size include Allen-Bradley Bulletin 509 Size 4 Starter, Siemens SIRIUS Size 4 Motor Starter, and Eaton Freedom Size 4 Magnetic Starter.