{"product_id":"eaton-hmcp400w5x-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400W5X - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HMCP400W5X is a robust 400 A, 600 V, 3-pole molded case circuit breaker designed to safeguard branch circuits in panelboards and loadcenters. Its compact, space-saving form factor helps you maximize panel efficiency while delivering dependable protection where it matters most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent and voltage rating:\u003c\/strong\u003e 400 A, 600 V, ideal for demanding branch circuits and higher‑capacity feeders in residential, commercial, and light industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration:\u003c\/strong\u003e Provides synchronized disconnection across all phases, ensuring reliable three-phase protection for motors, feeders, and distribution circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Delivers stable, repeatable protection performance with fast response to short circuits, reducing equipment damage and downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSpace-efficient molded case design:\u003c\/strong\u003e Lets you optimize panel space without compromising protection or ease of installation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility:\u003c\/strong\u003e Precisely engineered to integrate with matching Eaton loadcenters and panelboards for seamless upgrades and replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application range:\u003c\/strong\u003e Suitable for residential, commercial, and light industrial applications where reliable branch‑circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eReal-world use cases\u003c\/h3\u003e\n\u003cp\u003eUse the HMCP400W5X to protect large feeders and motor loads in a commercial panel, upgrade a residential service panel for higher capacity circuits, or replace aging breakers in light industrial setups. The 3-pole design is highly effective for balanced three-phase systems, helping prevent nuisance trips and providing consistent protection across all phases.\u003c\/p\u003e \u003ch3\u003eTechnical snapshot\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 HMCP400W5X\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 \u003cp\u003eChoosing the HMCP400W5X means investing in a reliable, high‑capacity protection solution that aligns with Eaton’s panel systems and provides practical, real‑world benefits—from space-efficient panels to faster fault clearing and longer equipment life. It’s a smart, future‑proof choice for any installation that demands serious protection without sacrificing panel footprint or compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349612122274,"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_7c2e8cb3-c4a3-4747-bd2c-55818de78ea6.png?v=1764151317","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400w5x-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}