{"product_id":"eaton-hmcp400j5c-400a-600v-3-pole-circuit-breaker","title":"Eaton HMCP400J5C - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HMCP400J5C is a robust 3-pole molded case circuit breaker designed to protect your electrical distribution from overcurrent and short-circuit events. With a 400 A rating and a 600 V maximum, this unit is purpose-built for demanding panelboards and loadcenters in residential, commercial, and light industrial settings. \u003c\/p\u003e \u003ch3\u003eWhy choose the HMCP400J5C\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded-case design\u003c\/strong\u003e maximizes panel space, allowing for more organized, reliable distribution without compromising protection or performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection: the thermal element handles sustained overloads, while the magnetic element responds quickly to short circuits, helping minimize equipment damage and downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible installation\u003c\/strong\u003e engineered to be compatible with matching OEM loadcenters and panelboards, reducing retrofit hassles and ensuring a proper fit and electrical coordination.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e suitable for a range of environments—from home electrical rooms to commercial offices and light industrial facilities—where reliable three-phase protection is required.\u003c\/li\u003e\n\u003c\/ul\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 HMCP400J5C\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 loadcenters\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cp\u003eIn a three-phase distribution setup, the HMCP400J5C protects large branch circuits feeding equipment and machinery, preventing damage from overloads and fault conditions. It's ideal for upgrading existing panels that require higher current protection, or for new installations where a compact, reliable 3-pole solution is needed to manage multiple downstream loads in one go. When paired with compatible OEM panels, it ensures coordinated protection and straightforward maintenance.\u003c\/p\u003e \u003ch3\u003eWhat makes it stand out\u003c\/h3\u003e\n\u003cp\u003eThis breaker combines a space-conscious design with a precise, dual-mode trip system. That means you don’t just flip a switch during a fault—you get predictable, repeatable performance that aligns with your protection strategy and panel scheduling. Its compatibility with OEM loadcenters simplifies procurement and reduces the risk of mismatched components during replacement or expansion.\u003c\/p\u003e \u003cp\u003eFor engineers, electricians, and facility managers seeking dependable, three-pole protection at a 400 A capacity, the Eaton HMCP400J5C delivers clear value through efficient panel use, proven protection theory in a compact package, and seamless integration with compatible panelboards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349611073698,"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_dc5be650-14ad-4674-ada3-54ed872444e3.png?v=1764151272","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400j5c-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}