Eaton HMCP400N5C - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton HMCP400N5C—a 400 A, 600 V, 3-pole molded-case circuit breaker designed to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for residential, commercial, and light-industrial environments, this unit is a purpose-built upgrade for installers who demand consistency, reliability, and OEM compatibility.

• Space-efficient, molded-case design: The compact form factor helps maximize panel density, making it easier to fit multiple breakers in tight enclosures without compromising performance.
• Thermal-magnetic trip unit: A stable, repeatable protection mechanism that responds to both overloads and short circuits, maintaining reliable performance across varying temperatures and supply conditions.
• Three-pole configuration: Ideal for balanced, three-phase circuits common in commercial and light-industrial setups, while still suitable for residential distribution where needed.
• 400 A, 600 V rating: Built to handle high-demand branch circuits while providing robust protection for equipment and wiring in shared electrical spaces.
• OEM-loadcenter compatibility: Designed to work seamlessly with matching Eaton panels and other OEM panelboards, simplifying replacement or expansion without adapters or custom housings.

This HMCP400N5C is purposefully crafted for assets that require dependable protection in panel ecosystems. Use cases range from service panels and subpanels in commercial facilities to main distribution within light-industrial environments, extending to residential projects where larger, more capable protection is needed. The combination of a compact profile, reliable thermal-magnetic protection, and OEM compatibility makes it a smart, long-term choice for ensuring safe, uninterrupted power delivery.

Key details at a glance

• Manufacturer: Eaton
• Part Number: HMCP400N5C
• Type: Thermal-magnetic molded-case circuit breaker
• Amperage Rating: 400 A
• Voltage Rating: 600 V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Choosing the Eaton HMCP400N5C means prioritizing reliability and compatibility in your electrical distribution. For projects that demand solid protection with a compact footprint and straightforward integration into existing panel ecosystems, this breaker from AmpState delivers clear value—delivering peace of mind where it counts most: the safety of people and the integrity of equipment.