Westinghouse DK3400W Molded Case Circuit Breaker

Description:

The Westinghouse DK3400W Circuit Breaker 400A 240V 3P 3PH with KT3400T Trip Unit is an industrial molded case circuit breaker used in power distribution and motor control systems for overload and short-circuit protection. 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 circuit breaker for panel upgrades, electrical maintenance, and industrial power distribution replacement applications.

Applications:

The Westinghouse DK3400W circuit breaker with KT3400T trip unit 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.

Technical Specifications:

• Brand: Westinghouse
• Part Number: DK3400W
• Trip Unit Part Number: KT3400T
• Product Type: Molded Case Circuit Breaker
• Current Rating: 400 Amp
• Voltage Rating: 240V
• Pole Configuration: 3 Pole
• Phase Configuration: 3 Phase
• Function: Overload and short-circuit protection
• Trip Type: Thermal magnetic trip unit
• Application: Industrial and commercial power distribution systems
• Suitable For: Three-phase branch and feeder circuit protection
• Mounting Type: Panelboard breaker installation
• Usage Environment: Industrial electrical systems
• Compatibility: Industrial power distribution equipment
• Construction: Industrial-duty breaker housing
• Designed For: Continuous industrial operation

Common Replacements:

• Eaton DK Series Circuit Breaker
• Siemens Industrial Circuit Breaker
• Square D PowerPact Circuit Breaker