Cutler-Hammer HKD3400T56WZGP Circuit Breaker, 400A, 3-Pole, 600V

The Cutler-Hammer HKD3400T56WZGP is a rugged, industrial-grade circuit breaker designed for demanding electrical service, maintenance, and replacement projects. With a 400 A capacity and 3 poles, this unit delivers reliable three-phase protection at up to 600 V, making it a trusted choice for heavy-duty power distribution in manufacturing, facilities, and large commercial environments.

Built within the Case Breaker series, the HKD3400T56WZGP pairs durable construction with a proven protection mechanism to help minimize unplanned downtime. Its three-pole design ensures synchronized protection across all three phases, reducing the risk of imbalanced loading and improving overall system reliability in demanding environments.

Why this breaker stands out

• 400 A, 3-pole configuration—ideal for safeguarding three-phase circuits that drive motors, conveyors, pumps, and other heavy loads.
• 600 V rating—suitable for a wide range of industrial power distribution setups and control panels.
• Case Breaker lineage—a trusted family within Cutler-Hammer for durable performance in tough environments.
• Compatibility at a glance—verify fit by part number (HKD3400T56WZGP) and ensure it meets your specific application requirements.
• Industrial-focused use cases—perfect for service entrances, replacement in existing panels, and integration into motor control centers where robust protection is essential.

Notes: To ensure proper fit and performance, confirm compatibility using the exact part number and your system’s electrical specifications. If you need help matching this part number to your application, send a message—we’re ready to assist with compatibility checks and guidance.

Specifications at a glance

• Part Number: HKD3400T56WZGP
• Amperage: 400 A
• Poles: 3
• Voltage: 600 V
• Series: Case Breaker
• Product Type: Circuit Breaker