Eaton HKW3400F Circuit Breaker, 400A, 3-Pole, 600V

The Eaton HKW3400F circuit breaker is designed for demanding industrial electrical service, maintenance, and replacement projects. With a robust 400 A rating and a three-pole configuration, it provides reliable protection for three-phase circuits in challenging environments.

Key specifications at a glance

• Amperage: 400 A
• Poles: 3
• Voltage: 600 V
• Manufacturer: Eaton
• Part Number: HKW3400F
• Application: Industrial service, maintenance, and replacement projects
• Compatibility note: Verify fit by part number and application requirements

Why the HKW3400F stands out

• Part-number precision: The HKW3400F is a purpose-built solution; confirming the exact part number ensures you’re selecting the right device for your panel, bus, and enclosure configuration.
• Three-pole protection for three-phase systems: The 3-pole design is ideal for protecting motors, conveyors, and other three-phase equipment common in industrial settings.
• Broad voltage capability: With a 600 V rating, it fits a wide range of industrial applications, from assembly lines to processing plants.
• Designed for retrofit and maintenance: Its form and function are suited for replacing aging breakers or upgrading service panels in existing facilities.
• Support-ready: If you’re unsure about compatibility, our team can assist in matching the HKW3400F to your application.

Practical use cases

Ideal for upgrading or maintaining industrial electrical infrastructure, the Eaton HKW3400F supports:

• Service panel replacements in manufacturing environments
• Motor control centers and machinery protection where three-phase loads are common
• Retrofits on aging electrical systems needing a reliable 400 A, 3-pole solution

How to verify compatibility

To ensure the HKW3400F will fit your application, confirm:

• Part number accuracy: HKW3400F exactly matches your equipment requirements
• Voltage and current ratings align with system design (600 V, 400 A)
• Enclosure and mounting compatibility for a 3-pole MCCB of this size
• Application needs such as load type and protection coordination within your electrical scheme

If you need assistance with part-number matching or compatibility confirmation, send a message and we’ll help ensure the HKW3400F is the right fit for your project.

Tips for seamless deployment

• Plan for proper clearance and ventilation around the breaker to maintain performance and safety margins.
• Label corresponding circuits clearly to support quick resets and accurate fault isolation.
• Pair this breaker with appropriate protective devices in your system to achieve coordinated protection and minimize nuisance tripping.