{"product_id":"eaton-hmcp400g5w-400a-600v-3-pole-bolt-on-circuit-breaker","title":"Eaton HMCP400G5W - 400 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eEaton HMCP400G5W\u003c\/strong\u003e is a 400A, 600V, 3-pole bolt-on molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, helping maintain reliable performance in environments with vibration, cycling, or high mechanical stress.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting:\u003c\/strong\u003e Provides a robust, vibration-resistant connection that stays tight through ongoing electrical and mechanical activity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit:\u003c\/strong\u003e Delivers stable, repeatable protection by responding to both overloads (thermal) and short circuits (magnetic) for reliable safety performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility:\u003c\/strong\u003e Engineered to work with matching Eaton OEM load centers and panelboards for a cohesive, dependable protection system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications:\u003c\/strong\u003e Suitable for residential, commercial, and light industrial environments where robust branch-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThe HMCP400G5W is purpose-built to protect your electrical system from damaging overcurrents and short circuits on large, three-phase or multi-branch circuits. With a 400A rating and 600V capability, it is well-suited for use in main distribution panels, subpanels, and service equipment where dependable, fast-acting protection is critical.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003cstrongamperage rating:\u003e 400A\u003c\/strongamperage\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongvoltage rating:\u003e 600V\u003c\/strongvoltage\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongnumber of poles:\u003e 3\u003c\/strongnumber\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongmounting style:\u003e Bolt-on\u003c\/strongmounting\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongtype:\u003e Thermal-magnetic molded case circuit breaker\u003c\/strongtype:\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongmanufacturer:\u003e Eaton\u003c\/strongmanufacturer:\u003e\u003c\/li\u003e \u003cli\u003e\u003cstrongpart number:\u003e HMCP400G5W\u003c\/strongpart\u003e\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho benefits most\u003c\/strong\u003e from this breaker are electrical professionals, panel builders, and service technicians who require a reliable, high-capacity protection solution that integrates smoothly with Eaton load centers. Ideal for new installations or field upgrades in panels that demand secure mounting and predictable trip performance.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePractical tips for installation and use\u003c\/strong\u003e:\n- Follow manufacturer torque specifications when securing the bolt-on mounting to ensure a solid bus connection.\n- Confirm compatibility with the existing panelboard or load center to maintain coordinated protection.\n- Use in environments where vibration, mechanical stress, or large fault currents are a consideration to maximize reliability.\u003c\/p\u003e \u003cp\u003eChoose the Eaton HMCP400G5W for a proven, high-capacity, bolt-on solution that delivers consistent protection across a wide range of commercial and light industrial applications, while maintaining compatibility with Eaton’s OEM panel ecosystems.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349610942626,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-hmcp400g5w-400-a-600-v-3-pole-bolt-on-circuit-breaker-868.webp?v=1788691634","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400g5w-400a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}