{"product_id":"eaton-hmcp400k5y-400a-600v-circuit-breaker","title":"Eaton HMCP400K5Y 400A 600V Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton HMCP400K5Y 400 A, 600 V circuit breaker—built for everyday electrical work and the backbone of reliable panel protection. Designed to slot into panelboards, load centers, and electrical distribution with precision, this breaker delivers consistent performance while keeping your Eaton-based systems neatly aligned with a direct part-number match.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact part-number match\u003c\/strong\u003e for Eaton panelboards and load centers, minimizing downtime and installation guesswork.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400 A rating\u003c\/strong\u003e provides robust protection for high-demand feeders and main circuits in commercial and industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V maximum voltage\u003c\/strong\u003e suited for typical distribution networks, ensuring compatibility across a wide range of installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliability in daily use\u003c\/strong\u003e—built to endure routine maintenance and repeated switching without compromise.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eIdeal for maintenance teams, panel builders, and spare inventories\u003c\/strong\u003e where having the exact Eaton part matters for fast, accurate replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEasy replacement in existing Eaton installations\u003c\/strong\u003e—no adapters, no guesswork, just straightforward protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAvailable from AmpState\u003c\/strong\u003e for dependable procurement and quick access to essential parts.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing failed breakers in service panels or distribution panels within commercial buildings or light industrial facilities.\u003c\/li\u003e \u003cli\u003eStocking spare inventory for maintenance teams when uptime is critical and exact part compatibility matters.\u003c\/li\u003e \u003cli\u003eFabricating new panels or expanding electrical distribution with a trusted Eaton component that aligns with existing Eaton ecosystems.\u003c\/li\u003e \u003cli\u003eEnsuring consistent protection for high-draw feeders where a 400 A device is the right fit.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eNeed help matching a part number or confirming compatibility?\u003c\/strong\u003e Message us and we’ll help you confirm fit.\u003c\/p\u003e \u003ch3\u003eSpecifications at a glance\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\u003eProduct Type:\u003c\/strong\u003e Circuit Breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46413737984162,"sku":"HMCP400K5Y","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-hmcp400k5y-400a-600v-circuit-breaker-ampstate-breakers-757.webp?v=1789092123","url":"https:\/\/www.ampstate.com\/products\/eaton-hmcp400k5y-400a-600v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}