{"product_id":"eaton-hmcp400n5x-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400N5X - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HMCP400N5X is a 400 A, 600 V, 3-pole molded case circuit breaker engineered to safeguard panelboards and load centers from overcurrent and short circuits. Equipped with a thermal-magnetic trip unit, it delivers stable, repeatable protection that minimizes nuisance trips in demanding electrical environments.\u003c\/p\u003e \u003ch2\u003eWhy this breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSpace-efficient design:\u003c\/strong\u003e A compact molded case helps maximize panel space, making it easier to organize feeders in tight enclosures.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliable protection:\u003c\/strong\u003e The thermal-magnetic trip unit provides fast, precise response to overloads and short circuits, delivering dependable protection for critical circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration:\u003c\/strong\u003e Ideal for three-phase systems common in commercial and light industrial settings, ensuring coordinated protection across all phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current capability:\u003c\/strong\u003e With a 400 A rating, it’s suited for main feeders and large branch circuits within panelboards.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility:\u003c\/strong\u003e Designed to be used with matching OEM loadcenters and panelboards for a seamless, integrated protection solution.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\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\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HMCP400N5X\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cp\u003ePerfect for residential, commercial, and light industrial applications where robust branch circuit overcurrent and short-circuit protection is required. Use it as a main feeder protection device in panelboards, as a service disconnect in larger installations, or as a reliable protection component within sub-panel distributions. Its compatibility with matching OEM loadcenters and panelboards simplifies specification and installation, delivering a cohesive protection strategy across your electrical infrastructure.\u003c\/p\u003e \u003ch2\u003ePractical considerations\u003c\/h2\u003e\n\u003cp\u003eWhen integrating the HMCP400N5X, ensure alignment with the panelboard’s design and the OEM recommendations. The 3-pole design supports three-phase systems, and the 600 V rating covers a broad range of commercial and industrial circuits. The result is a compact, durable protection solution that keeps wiring organized and accessible while maintaining strong protection against overcurrent events.\u003c\/p\u003e \u003cp\u003eChoose the Eaton HMCP400N5X for a dependable, space-conscious circuit breaker that pairs precisely with compatible panelboards to deliver clear protection, straightforward installation, and long-term reliability in demanding environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349611729058,"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_dc5721b0-c17d-4966-b1d8-7d52989026b2.png?v=1764151298","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400n5x-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}