{"product_id":"eaton-hmcp400k5y-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400K5Y - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HMCP400K5Y stands up to demanding electrical environments as a 400 A, 600 V, 3-pole molded case circuit breaker engineered for reliable branch circuit overcurrent and short‑circuit protection. Built to integrate smoothly with Eaton panelboards and load centers, this breaker is a precise, space‑savvy solution for modern electrical rooms, service upgrades, and retrofit projects.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes panel efficiency by saving space without compromising protection or accessibility, making it ideal for tight electrical chambers and crowded load centers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across temperature changes and load fluctuations, reducing nuisance trips and ensuring dependable performance when it matters most.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3‑pole configuration\u003c\/strong\u003e supports three‑phase circuits, enabling clean, coordinated power distribution for commercial and light industrial equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400 A at 600 V rating\u003c\/strong\u003e handles robust branch circuits while remaining compatible with standard industrial and commercial equipment, providing a wide operating envelope for diverse installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM‑level compatibility\u003c\/strong\u003e designed to pair with matching Eaton OEM load centers and panelboards, simplifying replacements, upgrades, and panel modernization projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile use across settings\u003c\/strong\u003e ideal for residential, commercial, and light industrial applications where dependable protection and straightforward maintenance are priorities.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters for your project\u003c\/h3\u003e\n\u003cp\u003eWith the HMCP400K5Y, you’re choosing a proven solution that aligns with real-world electrical demands—short‑circuit events, prolonged overloads, and the need for predictable trips. Its compact footprint means you can fit more protection in the same panel footprint, while the thermal‑magnetic trip unit provides consistent performance across a broad range of operating conditions. This isn’t just a breaker; it’s a reliable safeguard for wiring, devices, and occupants.\u003c\/p\u003e \u003ch3\u003eIdeal applications\u003c\/h3\u003e\n\u003cp\u003eUse this 3‑pole molded case breaker for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpdating or expanding panelboards in offices, retail spaces, and multi‑tenant buildings\u003c\/li\u003e \u003cli\u003eProtecting feeders and branch circuits in light industrial environments\u003c\/li\u003e \u003cli\u003eReplacing aging breakers in existing Eaton load centers to maintain compatibility and reliability\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 HMCP400K5Y\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\u003eApplications:\u003c\/strong\u003e Branch circuit overcurrent and short‑circuit protection in panelboards and load centers\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Eaton HMCP400K5Y for a dependable, space‑efficient, and OEM‑compatible protection solution that keeps critical electrical systems running smoothly across residential, commercial, and light industrial environments.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349611368610,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-hmcp400k5y-400-a-600-v-3-pole-circuit-breaker-ampstate-460.webp?v=1788691738","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400k5y-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}