{"product_id":"eaton-hmcp400x5-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400X5 - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton HMCP400X5 — a robust 400 A, 600 V, 3-pole molded case circuit breaker designed to deliver reliable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for residential, commercial, and light industrial distribution, it provides dependable protection where it’s needed most.\u003c\/p\u003e \u003ch3\u003eWhat makes the HMCP400X5 unique\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSpace-efficient molded case design\u003c\/strong\u003e maximizes panel real estate and simplifies wiring in compact installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by combining precise thermal overload sensing with an instantaneous magnetic trip for short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e supports three-phase distribution and aligns with common panelboard layouts for reliable, coordinated protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V rating\u003c\/strong\u003e enables use in higher-voltage residential, commercial, and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-loadcenter compatibility\u003c\/strong\u003e is designed to drop into Eaton’s matching loadcenters and panelboards for straightforward replacement and consistent performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HMCP400X5\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\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\u003eNumber of Poles:\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 \u003ch3\u003eIdeal applications and practical use\u003c\/h3\u003e\n\u003cp\u003eThe HMCP400X5 is well-suited for larger feeders and main protection in distribution panels found in residential complexes, commercial spaces, and light industrial environments. Use it to protect heavy-load circuits, motor feeders, or critical branch circuits where reliable trip performance is essential. When upgrading or retrofitting, pairing this breaker with matching OEM loadcenters ensures coordinated protection and simplified maintenance.\u003c\/p\u003e \u003ch3\u003eInstallation, compatibility, and practical tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePair the HMCP400X5 with Eaton’s compatible loadcenters and panelboards to guarantee fit, fitment integrity, and consistent trip characteristics.\u003c\/li\u003e \u003cli\u003eVerify that your installation aligns with the 400 A, 600 V rating and the 3-pole configuration to meet system design requirements.\u003c\/li\u003e \u003cli\u003eFollow applicable electrical codes and Eaton installation guidelines to ensure safe, reliable operation over the life of the panel.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eEquip your electrical distribution with the Eaton HMCP400X5 for durable, precise protection that helps keep large feeders and critical circuits safe, compliant, and efficiently managed. \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349612253346,"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_a9d580a3-efa8-4405-b5da-b7596ec91090.png?v=1764151320","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400x5-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}