{"product_id":"eaton-hmcp400l5-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400L5 - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HMCP400L5 is a 400A, 600V, 3-pole molded‑case circuit breaker designed to deliver reliable branch‑circuit overcurrent and short‑circuit protection inside panelboards and load centers. Built for demanding electrical distributions, it combines a compact form factor with dependable protection performance.\u003c\/p\u003e \u003cp\u003eKey advantages that set this model apart:\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e400 A nominal rating\u003c\/strong\u003e handles high-load circuits without frequent trips, helping keep critical equipment powered during peak demand.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V voltage rating\u003c\/strong\u003e supports common commercial and light industrial power distribution needs, accommodating three‑phase systems with confidence.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e provides comprehensive protection across all phases in three‑phase installations, simplifying integration in standard panelboards.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e offers stable, repeatable protection by combining a thermal element for overload detection and a magnetic element for instantaneous short-circuit interruption.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case construction\u003c\/strong\u003e maximizes panel space and eases installation in crowded enclosures without compromising protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e is designed to work with matching Eaton OEM load centers and panelboards for a seamless, reliable fit.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e ideal for residential, commercial, and light industrial electrical distributions requiring robust, predictable protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eSpecifications at a glance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eAmperage rating: 400 A\u003c\/li\u003e \u003cli\u003eVoltage rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of poles: 3\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003ePart number: HMCP400L5\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use and installation guidance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eEnsure panel compatibility with matching OEM loadcenters and panelboards to maintain coordinated protection and convenient replacement.\u003c\/li\u003e \u003cli\u003eConfirm the host panel can accommodate 400 A protection and a 3-pole device within the intended circuit layout.\u003c\/li\u003e \u003cli\u003eInstall in accordance with OEM recommendations and standard electrical practices to guarantee proper trip performance and safe operation.\u003c\/li\u003e \u003cli\u003eUse this breaker for subfeed protection, service panels, and distribution blocks where three‑phase protection and space efficiency are priorities.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor electrical systems that demand dependable overcurrent and short‑circuit protection without sacrificing panel space, the Eaton HMCP400L5 delivers clear, tangible value. Its combination of a robust 400 A rating, 600 V compatibility, and a compact molded‑case design makes it a practical, reliable choice for protecting essential loads in panelboards and load centers.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349611434146,"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_97d78d1b-1b1e-4f90-aac2-517a6719643d.png?v=1764151283","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400l5-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}