Westinghouse Electric LB3400WK Molded Case Switch

Description:

The Westinghouse LB3400WK Molded Case Switch is a non-automatic molded case power switch designed for manual switching and circuit isolation in industrial and commercial electrical distribution systems. Commonly installed in switchgear assemblies, motor control centers, industrial machinery, and commercial electrical panels where dependable three-phase power isolation and heavy-duty switching functionality are required. Maintenance teams, electricians, and facility operators use this molded case switch for equipment disconnect applications, power isolation, and replacement of aging switching hardware.

Applications:

The Westinghouse LB3400WK molded case switch is commonly used in manufacturing facilities, industrial automation systems, HVAC equipment, large motor applications, and power distribution systems where reliable 400 amp three-phase switching and dependable circuit isolation are critical for safe and continuous electrical operation.

Technical Specifications:

• Brand: Westinghouse
• Part Number: LB3400WK
• Product Type: Molded Case Switch
• Breaker Series: LB
• Number of Poles: 3 Pole
• Current Rating: 400 Amp
• Voltage Rating: 600 Volt AC
• Phase Type: 3 Phase
• Protection Type: Non-Automatic Switching
• Mounting Type: Fixed Mount
• 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 LB3400WK
• Cutler-Hammer LB3400WK
• Square D LA36400NS