{"product_id":"eaton-hmcp400x5y-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400X5Y - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HMCP400X5Y is a rugged 400A, 600V, 3-pole molded case circuit breaker engineered to protect electrical systems in panelboards and load centers. Built for reliability, it delivers precise overcurrent and short-circuit protection while optimizing space in the panel with its compact molded case design.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e minimizes footprint in crowded panel spaces, helping you fit protection where it’s needed without sacrificing accessibility or serviceability.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection across varying loads and fault conditions, balancing long-term reliability with fast response to faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-ready compatibility\u003c\/strong\u003e designed to work with matching OEM load centers and panelboards for straightforward replacement and dependable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments, delivering consistent protection for main feeds and critical branch circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey 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 HMCP400X5Y\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 in panelboards and load centers\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model is a smart choice\u003c\/h3\u003e\n\u003cp\u003eThe HMCP400X5Y is more than a breaker—it’s a strategic protection solution for controlled, reliable electrical distribution. The three-pole design ensures balanced protection across phases, which is crucial for three-phase panelboards and industrial-style loads. Its about-the-job practicality means fewer panel swaps or mismatches and more consistent performance over time.\u003c\/p\u003e \u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eElectrical professionals upgrading or maintaining panelboards and load centers in homes, offices, retail spaces, and light industrial facilities.\u003c\/li\u003e \u003cli\u003eSystems requiring high-current protection with a compact footprint and OEM compatibility.\u003c\/li\u003e \u003cli\u003eSituations where predictable thermal-magnetic protection translates to safer, more reliable fault response.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical tips and considerations\u003c\/h3\u003e\n\u003cp\u003eWhen integrating the HMCP400X5Y, ensure you’re pairing it with compatible OEM load centers and panelboards to maintain calibration and labeling consistency. Follow the latest electrical codes and manufacturer installation guidelines, and torque lugs to the recommended specifications to preserve secure connections and optimal trip performance. This breaker is designed to be a robust backbone for main feeders and select branch circuits where dependable, repeatable protection matters most.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349612417186,"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_0b4b88e8-c493-4834-a6cb-5e53d70eaf96.png?v=1764151325","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400x5y-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}