{"product_id":"eaton-hmcp400l5w-400a-600v-3-pole-bolt-on-circuit-breaker","title":"Eaton HMCP400L5W - 400 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for dependable branch circuit protection, the Eaton HMCP400L5W is a 400 A, 600 V, 3-pole bolt-on molded case circuit breaker designed for panelboards and loadcenters. With secure bolt-on mounting and a thermal-magnetic trip unit, it delivers precise, repeatable protection for residential, commercial, and light industrial electrical systems, while staying fully compatible with Eaton’s OEM loadcenters and panelboards.\u003c\/p\u003e \u003ch2\u003eKey benefits\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection for reliable operation in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines overload protection with instantaneous short-circuit protection for consistent performance across time and varying loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400 A at 600 V, 3-pole design\u003c\/strong\u003e delivers robust protection for larger feeders and multi-wire circuits in a single, compact package.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMolded case construction\u003c\/strong\u003e built to withstand the rigors of commercial and light industrial installations, reducing nuisance trips and maintenance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM loadcenter compatibility\u003c\/strong\u003e ensures straightforward replacement and reliable integration with matching Eaton panelboards and loadcenters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Eaton\u003c\/li\u003e \u003cli\u003ePart number: HMCP400L5W\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage rating: 400 A\u003c\/li\u003e \u003cli\u003eVoltage rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of poles: 3\u003c\/li\u003e \u003cli\u003eMounting style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eResidential panels and subpanels requiring dependable 400 A protection for main feeders or large branch circuits\u003c\/li\u003e \u003cli\u003eCommercial service panels and distribution boards where reliable short-circuit interruption is critical\u003c\/li\u003e \u003cli\u003eLight industrial electrical distributions that demand robust, durable protection with easy maintenance and compatible OEM components\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation \u0026amp; compatibility insights\u003c\/h2\u003e\n\u003cp\u003eThe bolt-on mounting design ensures a strong mechanical connection to bus bars, delivering stable current paths even in environments with vibration or movement. Designed to work with Eaton’s matching OEM loadcenters and panelboards, the HMCP400L5W simplifies replacement and minimizes integration issues across existing installations. When selecting this breaker, verify that the host panelboard or loadcenter supports a 3-pole, 400 A, 600 V device for optimal performance and warranty alignment.\u003c\/p\u003e \u003ch2\u003ePerformance you can rely on\u003c\/h2\u003e\n\u003cp\u003eWith a thermal-magnetic trip mechanism, this breaker responds to both sustained overloads and short-circuit events, helping protect downstream equipment, wiring, and connected loads. The 400 A rating accommodates substantial feeder circuits, making it a practical choice for mid-sized commercial spaces and controlled industrial environments where predictable protection and quick fault interruption are essential. Pair it with compatible panelboards for a cohesive, maintenance-friendly electrical distribution solution.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349611499682,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-hmcp400l5w-400-a-600-v-3-pole-bolt-on-circuit-breaker-474.webp?v=1788691764","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400l5w-400a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}