Westinghouse Electric Corporation MC3800WK Molded Case Switch

Description:

The Westinghouse MC3800WK Molded Case Switch is used in industrial and commercial electrical distribution systems to provide manual power switching and circuit isolation for high-capacity three-phase power circuits and electrical equipment. Commonly installed in switchgear assemblies, motor control centers, industrial machinery, and large electrical distribution systems where dependable high-amperage switching and disconnect functionality are required. Maintenance teams and electricians use this switch for equipment isolation, electrical system upgrades, disconnect applications, and replacement of aging switching hardware.

Applications:

The Westinghouse MC3800WK molded case switch is commonly used in manufacturing facilities, industrial automation systems, mining operations, HVAC infrastructure, and heavy-duty power distribution applications where reliable 800 amp three-phase switching and dependable circuit isolation are critical for safe and continuous electrical operation.

Technical Specifications:

• Brand: Westinghouse
• Part Number: MC3800WK
• Product Type: Molded Case Switch
• Breaker Series: MC
• Number of Poles: 3 Pole
• Current Rating: 800 Amp
• Voltage Rating: 600 Volt AC
• Interrupt Rating: 10 kA
• Phase Type: 3 Phase
• Protection Type: Non-Automatic Switching
• Mounting Type: Bolt-On
• Function: Manual power switching and circuit isolation
• Application: Commercial and industrial electrical distribution systems
• Compatible Equipment: Switchgear and distribution systems
• Installation Type: Panel mounted
• Usage Environment: Commercial and industrial electrical systems
• Designed For: High-capacity power distribution and disconnect applications
• Construction: Molded case switch assembly

Common Replacements:

• Eaton MC3800WK
• Cutler-Hammer MC3800WK
• Square D ME36800NS