Eaton HMCP400Y5C - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState

Eaton HMCP400Y5C — a 400 A, 600 V, 3-pole molded case circuit breaker built for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters.

Key reasons to choose this model:

• Compact molded case design minimizes footprint in crowded panel spaces, making it easier to fit high-current protection without sacrificing room for other devices.
• Thermal-magnetic trip unit delivers stable, repeatable protection as temperatures swing and loads vary, reducing nuisance trips and ensuring consistent circuit safety.
• OEM-ready compatibility designed to work with matching OEM loadcenters and panelboards for straightforward replacements and upgrades.
• Versatile applications suitable for residential, commercial, and light industrial installations requiring reliable 400 A protection at up to 600 V.

Technical snapshot — HMCP400Y5C, type: Thermal-magnetic molded case circuit breaker; amperage rating: 400 A; voltage rating: 600 V; number of poles: 3; purpose: branch circuit overcurrent and short-circuit protection.

Ideal for:

• Electricians upgrading service panels or loadcenters who need a high-current, compact solution without expanding panel space.
• Facility managers maintaining commercial spaces with three-phase or multi-wire branch circuits.
• Light industrial operators seeking dependable protection for feeders and critical circuits.

Practical considerations

• When integrating, verify panelboard compatibility with the OEM enclosure family to ensure seamless fit and proper trip coordination.
• Coordinate with conductor ampacity and protective device requirements in your electrical design to protect both wiring and equipment.
• Use as a main breaker or as a heavy-duty feeder in appropriate panelboards to achieve optimized protection and ease of maintenance.

With Eaton’s trusted protection platform and AmpState’s availability, the HMCP400Y5C delivers robust short-circuit defense and dependable overcurrent protection for your electrical installations, all while respecting panel space and installation efficiency.