{"product_id":"eaton-kd4300-circuit-breaker","title":"Eaton | KD4300 | Circuit Breaker | 4-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton KD4300 4-Pole Circuit Breaker delivers dependable, four-pole protection for commercial, industrial, and retrofit projects where precise compatibility matters. Designed for maintenance, retrofit, and replacement tasks, this breaker keeps critical power systems safe and resilient when you need to match exact specifications.\u003c\/p\u003e \u003ch3\u003eKey advantages of the KD4300 4-Pole design\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFour-pole protection\u003c\/strong\u003e Provides complete disconnection for all conductors in four-wire systems, enhancing safety and ensuring proper circuit isolation in panelboards that require a four-pole configuration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility reference\u003c\/strong\u003e The KD4300 part number is your most reliable guide for matching Eaton breakers with compatible panels and load centers. Use it as the primary reference when planning replacements or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e Ideal for maintenance cycles, retrofit projects to upgrade protection, or replacement of aging or failed components in existing installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFit-and-rating emphasis\u003c\/strong\u003e Given the variety of panel models, always verify the breaker’s current rating and interrupting capacity alongside your specific panel model before ordering.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDurable performance\u003c\/strong\u003e Built to support steady operation in demanding environments, helping reduce nuisance trips and maintain steadier electrical protection for connected equipment.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTypical use cases\u003c\/h3\u003e\n\u003cp\u003eUse the Eaton KD4300 4-Pole Circuit Breaker in settings that demand reliable four-wire protection, such as:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eCommercial and industrial panels with four-pole configurations\u003c\/li\u003e \u003cli\u003eRetrofits where a four-pole breaker is required to preserve neutral integrity\u003c\/li\u003e \u003cli\u003eUpgrades of legacy Eaton installations to ensure consistent tripping behavior under fault conditions\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eCompatibility and installation guidance\u003c\/h3\u003e\n\u003cp\u003eTo ensure safe, compliant operation, confirm fit and ratings before purchasing. The KD4300 part number serves as the best reference for compatibility with your panel or load center. When installing, follow all applicable electrical codes and the manufacturer’s installation instructions, and verify that the panel’s bus, mounting, and interrupting capacity align with this four-pole solution.\u003c\/p\u003e \u003ch3\u003eWhy this matters for your project\u003c\/h3\u003e\n\u003cp\u003eChoosing the KD4300 4-Pole Circuit Breaker means prioritizing exact compatibility, reliable four-conductor protection, and a straightforward path for maintenance, retrofit, or replacement work. If your system requires a four-pole device, this Eaton breaker is purpose-built to integrate smoothly with your existing hardware, helping you maintain continuity of service while preserving safety standards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46427386708130,"sku":"KD4300","price":10717.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_ad06fdd7-931c-4a09-bfbe-d05329579cd6.png?v=1765492978","url":"https:\/\/www.ampstate.com\/products\/eaton-kd4300-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}