{"product_id":"eaton-hmcp400g5c-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400G5C - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HMCP400G5C is a high-capacity molded case circuit breaker engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. With a robust 400 A rating and a 600 V maximum, this three-pole unit is built to handle demanding residential, commercial, and light industrial electrical needs while integrating seamlessly with matching OEM panel hardware.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design\u003c\/strong\u003e maximizes panel space, helping you fit protective devices where space is at a premium without compromising performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection—balancing time-delayed response for overloads with immediate action for short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration\u003c\/strong\u003e ideal for three-phase systems, providing coordinated protection across all phases in load centers and panelboards.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V rating\u003c\/strong\u003e supports higher-voltage applications common in commercial and light industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400 A continuous rating\u003c\/strong\u003e suitable for protecting large feeders and substantial branch circuits, reducing the risk of nuisance trips on heavier loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e designed to work with matching OEM load centers and panelboards, ensuring reliable performance and straightforward replacement or upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider the HMCP400G5C\u003c\/h3\u003e\n\u003cp\u003eThis breaker is an excellent choice for professionals building or upgrading electrical infrastructure in:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential service panels requiring robust protection for sizeable feeder circuits.\u003c\/li\u003e \u003cli\u003eCommercial electrical rooms with multi-zone panelboards and demand-heavy loads.\u003c\/li\u003e \u003cli\u003eLight industrial installations where three-phase circuits and higher current protection are needed.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical scenarios and benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eMain feeder protection:\u003c\/strong\u003e Use in main distribution panels to safeguard large feeders feeding subpanels, ensuring quick isolation during faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase motor circuits:\u003c\/strong\u003e Protect motors and related controls in light industrial equipment where reliable trip characteristics matter for uptime and safety.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSystem protection upgrades:\u003c\/strong\u003e Retrofit older panelboards with a modern, compatible HMCP400G5C to improve protection coordination and trip performance without a full panel overhaul.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and care tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify compatibility with your panelboard or load center and ensure the system voltage and current levels align with 600 V and 400 A ratings.\u003c\/li\u003e \u003cli\u003eFollow manufacturer torque specifications for connections and use appropriate torque tools to maintain a secure, low-resistance connection.\u003c\/li\u003e \u003cli\u003ePlan trip coordination with adjacent protective devices to optimize fault-clearing times and minimize unnecessary outages.\u003c\/li\u003e \u003cli\u003eKeep documentation on model, part number (HMCP400G5C), and installation date for future troubleshooting, replacement, or upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eElevate your electrical protection with the Eaton HMCP400G5C—a purpose-built solution that combines space-conscious design, precise protection, and reliable compatibility to safeguard large circuits across residential, commercial, and light industrial applications.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349610909858,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_9d5c72b4-1200-4681-aa24-679781996ee4.png?v=1764151265","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400g5c-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}