{"product_id":"eaton-ckd3400y-circuit-breaker","title":"Eaton | CKD3400Y | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton CKD3400Y Circuit Breaker—the trusted protection solution built for demanding industrial and commercial power systems. With a rugged 400 A rating, a 3-pole configuration, and a 600 V maximum, this breaker is engineered to guard three-phase circuits where reliable overcurrent protection matters most.\u003c\/p\u003e \u003cp\u003eDesigned for maintenance, retrofit, and replacement scenarios, the CKD3400Y delivers consistent performance in panels and switchgear that require Eaton’s exacting standards. Before you order, confirm fit and ratings—the CKD3400Y part number is the clearest reference for compatibility, ensuring you won’t waste time on mismatched components.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eMaintenance projects where original protection needs to be restored\u003c\/li\u003e \u003cli\u003eRetrofit work to upgrade or replace aging protection with a like-for-like Eaton solution\u003c\/li\u003e \u003cli\u003eReplacement in existing 600 V, three-phase distribution environments\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy choose the CKD3400Y\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eBuilt by Eaton, leveraging decades of engineering for dependable electrical protection\u003c\/li\u003e \u003cli\u003eSpecific, unambiguous compatibility via the CKD3400Y part number—minimizing ordering errors\u003c\/li\u003e \u003cli\u003ePrecisely matches a 400 A, 3-pole, 600 V requirement, making it a targeted choice for your circuit protection needs\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eBuying considerations\u003c\/h3\u003e\n\u003cp\u003eTo ensure a correct match, verify that your equipment’s ratings align with the CKD3400Y configuration. The part number remains the most reliable reference for compatibility, so use it as your primary check when sourcing replacements or retrofits.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426452754594,"sku":"CKD3400Y","price":2010.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/eaton-ckd3400y-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}