{"product_id":"eaton-hmcp400d5-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400D5 - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered by Eaton, the HMCP400D5 is a 400 A, 600 V, 3-pole molded case circuit breaker built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its compact molded case design respects valuable panel space, making it a practical choice for tight electrical rooms and retrofit projects without sacrificing protection performance.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e minimizes intrusion into panel space, enabling streamlined layouts in residential, commercial, and light industrial installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by combining precise overload sensing with instantaneous magnetic response to short circuits, delivering reliable trips across varying temperatures and loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-ready compatibility\u003c\/strong\u003e is designed to work seamlessly with matching Eaton OEM load centers and panelboards, reducing fit issues and ensuring consistent protection performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole construction for 3-phase systems\u003c\/strong\u003e ideal for distributing power in panelboards and load centers up to 600 V, with a robust 400 A rating for heavy feeders and critical circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWho this is for\u003c\/h2\u003e \u003cul\u003e \u003cli\u003eElectrical contractors upgrading or expanding commercial and light industrial panels where reliable 3-phase protection is essential.\u003c\/li\u003e \u003cli\u003eFacilities managers seeking durable, low-maintenance protection for feeders and main circuits in panelboards and load centers.\u003c\/li\u003e \u003cli\u003eDevelopers or technicians performing panel modernization in spaces where panel footprint matters but protection cannot be compromised.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical snapshot\u003c\/h2\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HMCP400D5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker (MCCB)\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose the HMCP400D5 in your panel assembly? It delivers precise protection that adapts to real-world conditions—from busy commercial floors to compact residential service rooms—while maintaining a clean, space-conscious installation. Pair it with compatible Eaton load centers to ensure cohesive protection characteristics and straightforward maintenance, so you can protect critical circuits with confidence and clarity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349610451106,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-hmcp400d5-400-a-600-v-3-pole-circuit-breaker-ampstate-breakers-187.webp?v=1788691522","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400d5-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}