Westinghouse MME 11-150 DC Electromagnetic Contactor

The Westinghouse MME 11-150 DC Electromagnetic Contactor is a heavy-duty 150 A DC contactor designed for reliable DC load switching and motor control in industrial settings. It handles high-current DC power applications and is commonly used to switch DC motors, traction circuits, and battery banks in crane systems, mining equipment, rail systems, DC motor drives, battery-powered machinery, and other industrial automation installations. This panel-mounted device features rugged contact construction and magnetic arc suppression to withstand demanding environments and provide stable electromagnetic switching of DC circuits in industrial power control assemblies. For modernization or replacement, common options include the Eaton ME Series DC Contactor, ABB DC Magnetic Contactor, and Siemens Heavy-Duty DC Contactor; the MME series has been superseded by the Eaton ME series for modernization and replacement applications.