Westinghouse Electric DK3400W Circuit Breaker

Description:

The Westinghouse DK3400W Circuit Breaker 400 Amp 240 Volt No Trip is an industrial molded case circuit breaker frame used in power distribution and motor control systems for high-current circuit protection applications requiring a separate or replacement trip unit. Commonly installed in industrial electrical panels, motor control centers, manufacturing equipment, and three-phase power distribution systems requiring dependable high-current circuit interruption. Maintenance technicians, electricians, and system integrators use this breaker frame for panel upgrades, electrical maintenance, and industrial power distribution replacement applications. The DK3400W is part of the Westinghouse/Eaton Series C K-Frame breaker family.

Applications:

The Westinghouse DK3400W breaker frame is designed for industrial and commercial electrical protection in demanding power distribution environments. It is frequently used in manufacturing facilities, HVAC electrical systems, motor control applications, conveyor systems, and industrial distribution panels where dependable three-phase circuit protection and stable electrical operation are critical for equipment safety and system reliability. No-trip configurations are commonly used when replacing or reusing compatible trip units.

Technical Specifications:

• Brand: Westinghouse
• Part Number: DK3400W
• Product Type: Molded Case Circuit Breaker Frame
• Current Frame Rating: 400 Amp
• Voltage Rating: 240 Volt AC / 250 Volt DC
• Pole Configuration: 3 Pole
• Phase Configuration: 3 Phase
• Breaker Series: DK Series / K-Frame
• Trip Unit: No Trip Included
• Mounting Type: Bolt-on installation
• Interrupt Rating: Up to 65 kAIC @ 240VAC
• Function: Circuit breaker frame for overload and short-circuit protection systems
• Application: Industrial and commercial power distribution systems
• Suitable For: Three-phase branch and feeder circuit protection
• Usage Environment: Industrial electrical systems
• Construction: Industrial-duty breaker housing
• Designed For: Continuous industrial operation

Common Replacements:

• WESTINGHOUSE KDB3400W SER. C 600VAC 400A NSNP
• Eaton DK Series Circuit Breaker
• Siemens Industrial Circuit Breaker