{"product_id":"eaton-hmcp400l5x-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400L5X - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HMCP400L5X is a high-capacity, 3-pole molded case circuit breaker rated at 400 A and 600 V, built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Available through AmpState, this breaker is designed to meet the demanding needs of commercial, residential, and light-industrial electrical installations while fitting seamlessly into your existing Eaton ecosystem.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design:\u003c\/strong\u003e Maximizes panel space and simplifies layout, helping you achieve cleaner, more efficient panel installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Delivers stable, repeatable protection by reliably responding to overloads and short circuits, reducing nuisance trips and ensuring long-term reliability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration for three-phase systems:\u003c\/strong\u003e Provides coordinated protection across all three phases up to 600 V, ideal for modern commercial and light-industrial power networks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400 A continuous rating:\u003c\/strong\u003e Supports heavy-duty branch circuits without compromising protection, making it suitable for high-load panels and distribution nodes.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM loadcenter compatibility:\u003c\/strong\u003e Crafted to be drop-in compatible with matching Eaton OEM loadcenters and panelboards for straightforward retrofits and upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications:\u003c\/strong\u003e An excellent choice for residential, commercial, and light-industrial environments that require reliable overcurrent and short-circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eUse cases include upgrading aging panels to handle higher loads, equipping new three-phase installations with robust protection, and simplifying panel design by consolidating multiple protections into a single, reliable 3-pole device. The HMCP400L5X is purpose-built for environments where space is at a premium, yet protection must be uncompromising and consistent across all phases.\u003c\/p\u003e \u003cp\u003eHow it helps you solve real-world problems: with its compact form, proven thermal-magnetic protection, and easy compatibility with Eaton loadcenters, this breaker minimizes installation complexity while maximizing panel safety and reliability. It’s the practical, scalable choice when you need solid, industry-standard protection that aligns with your existing Eaton infrastructure.\u003c\/p\u003e \u003cp\u003ePractical tips for selection and installation: verify your panelboard is rated for molded-case breakers and designed to accept a 3-pole, 400 A device up to 600 V. Pair the HMCP400L5X with compatible OEM loadcenters for a clean retrofit, and ensure installation is performed by qualified personnel following applicable electrical codes. With Eaton HMCP400L5X, you’re choosing a proven solution that combines space efficiency, robust protection, and straightforward integration.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349611532450,"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_0e2974f7-a049-4e7d-a894-65f4847bc9f8.png?v=1764151288","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400l5x-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}