Eaton HMCP400R5W - 400 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The Eaton HMCP400R5W is a robust 400 A, 600 V, three‑pole molded‑case circuit breaker designed to deliver reliable branch circuit protection in panelboards and load centers. Its bolt‑on mounting creates a secure, vibration‑resistant bus connection, ensuring dependable performance in environments where machinery and equipment introduce movement or shock. Key features that set this breaker apart - Secure bolt‑on mounting for a rigid, vibration‑resistant connection to the bus, reducing the risk of connection loosening and nuisance trips. - Thermal‑magnetic trip unit provides stable, repeatable protection across varying temperatures and current profiles, delivering consistent interruption behavior when faults occur. - OEM compatibility: engineered to pair with matching Eaton OEM load centers and panelboards for a seamless fit and dependable operation. - Versatile application range: well suited for residential upgrades, commercial electrical rooms, and light industrial installations that demand durable, continuous protection. Why this matters for your electrical system - Precise overcurrent and short‑circuit protection: the combination of thermal and magnetic elements ensures the right response for both gradual overloads and rapid fault conditions. - Long‑term reliability in demanding environments: bolt‑on mounting and a rugged MCCB design minimize maintenance needs and keep panels running smoothly. - Clear path to compliant configurations: designed to work with Eaton’s family of load centers and panelboards, helping you maintain code‑compliant, maintainable electrical assemblies. Technical snapshot - Manufacturer: Eaton - Part Number: HMCP400R5W - Type: Thermal‑magnetic molded case circuit breaker (MCCB) - Amperage Rating: 400 A - Voltage Rating: 600 V - Number of Poles: 3 - Mounting Style: Bolt‑on - Application: Branch circuit overcurrent and short‑circuit protection Ideal use cases and scenarios - New panel installations or upgrades in residential, commercial, and light industrial facilities where a high‑amp, three‑pole protection solution is required. - Retrofit projects in existing panels where vibration or equipment in the vicinity could impact line connections, thanks to the secure bolt‑on design. - Service panels and distribution centers that demand predictable trip behavior and compatibility with OEM panelboards for streamlined maintenance. What you gain with the HMCP400R5W - Peace of mind from a proven, vendor‑supported protection device that aligns with Eaton’s panel and load center ecosystems. - A clear, reliable path to safeguarding main distribution networks against damaging faults without sacrificing installation simplicity or panel integrity. - Confidence in performance consistency across the full operating range, from normal load to fault conditions, backed by a robust thermal‑magnetic trip mechanism. If you’re outfitting or upgrading panelboards and load centers that require strong, dependable protection for large branch circuits, the Eaton HMCP400R5W delivers a precise, field‑ready solution that pairs native compatibility with durable, vibration‑tolerant construction.