{"product_id":"eaton-cutler-hammer-3ta631lk-400a-circuit-breaker","title":"Eaton Cutler-Hammer 3TA631LK 400A Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton Cutler-Hammer 3TA631LK 400A Circuit Breaker—engineered for reliable protection in panelboards, load centers, and broad electrical distribution networks. This genuine Eaton part is especially valuable for retrofit work and maintenance planning, where keeping the exact part number in service minimizes downtime and rework while preserving system integrity.\u003c\/p\u003e \u003ch2\u003eWhy this 400A circuit breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eExact part number compatibility for Eaton panelboards and load centers, making replacements straightforward and confidently aligned with existing installations.\u003c\/li\u003e \u003cli\u003e400 A interrupting capability delivers robust protection for high-current circuits without compromising system reliability in commercial and industrial settings.\u003c\/li\u003e \u003cli\u003eGenuine Eaton Cutler-Hammer design, crafted to perform consistently under demanding electrical distribution conditions.\u003c\/li\u003e \u003cli\u003eIdeal for retrofit projects and preventive maintenance where maintaining a consistent part number simplifies inventory management and service planning.\u003c\/li\u003e \u003cli\u003eAvailable through AmpState with support to verify fit—our team can help confirm compatibility based on your panel model and configuration.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eRetrofit and replacement in existing Eaton-based panelboards and load centers, keeping the same part number to ensure seamless integration.\u003c\/li\u003e \u003cli\u003eMaintenance programs that rely on standardized components across multiple sites, reducing stocking complexity and mis-matches.\u003c\/li\u003e \u003cli\u003eHigh-current protection in commercial and light-industrial distribution systems where dependable 400 A performance is required.\u003c\/li\u003e \u003cli\u003eNew installations within Eaton-compatible electrical distribution networks that demand certified, genuine parts for safety and compliance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eSpecification snapshot\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Eaton Cutler-Hammer\u003c\/li\u003e \u003cli\u003ePart Number: 3TA631LK\u003c\/li\u003e \u003cli\u003eProduct Type: Circuit Breaker\u003c\/li\u003e \u003cli\u003eAmperage: 400 A\u003c\/li\u003e \u003cli\u003eApplications: Panelboards, Load Centers, Electrical Distribution\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eNeed help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46410955260066,"sku":"3TA631LK","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-cutler-hammer-3ta631lk-400a-circuit-breaker-ampstate-breakers-471.webp?v=1788996384","url":"https:\/\/www.ampstate.com\/products\/eaton-cutler-hammer-3ta631lk-400a-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}