{"product_id":"eaton-kdb3300y-300a-600v-3-pole-circuit-breaker","title":"Eaton KDB3300Y - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton KDB3300Y is a 300A, 600V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built for reliability in demanding environments, this breaker ensures overcurrent and short-circuit protection with precision and consistency, keeping electrical systems safe and available when it matters most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes panel space, enabling cleaner installations and easier consolidation in crowded panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection by responding to both gradual overloads and high-current faults, reducing nuisance trips and protecting wiring and devices.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration with 300A rating\u003c\/strong\u003e provides robust, coordinated protection for three-phase systems or multi-wire branch circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V rating\u003c\/strong\u003e supports a wide range of commercial and light industrial applications, offering versatile protection for higher voltage distributions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-grade compatibility\u003c\/strong\u003e engineered to pair with matching Eaton panelboards and load centers, ensuring seamless integration and reliable performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where consistent protection and space efficiency are top priorities.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy this matters for your project: the KDB3300Y's combination of a compact form factor and a thermal-magnetic trip unit means you can protect critical branch circuits without sacrificing room in the enclosure. It’s a practical choice for installers who need a dependable, easy-to-specify solution that aligns with Eaton’s panel systems, helping you reduce inventory variety while maintaining consistent protection performance.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 300A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e KDB3300Y\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical guidance for use\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConfigure this breaker within compatible Eaton panelboards and load centers to ensure reliable trip coordination and protection.\u003c\/li\u003e \u003cli\u003ePair with appropriately rated conductors and protection schemes to match the 300A, 600V capacity and three-pole configuration.\u003c\/li\u003e \u003cli\u003eSchedule routine inspections of enclosure cleanliness and mounting integrity to preserve performance in residential, commercial, or light industrial settings.\u003c\/li\u003e \u003cli\u003eKeep spare KDB3300Y units on hand for fast replacement and minimal downtime during maintenance or panel upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading an existing panel or specifying a replacement for a new build, the Eaton KDB3300Y delivers focused protection where you need it most—efficiently, reliably, and in harmony with Eaton’s family of panel products. It’s a solid, purpose-built choice for professionals who value precise protection, space efficiency, and straightforward compatibility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349628571810,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-kdb3300y-300-a-600-v-3-pole-circuit-breaker-ampstate-breakers-485.webp?v=1788695711","url":"https:\/\/www.ampstate.com\/products\/eaton-kdb3300y-300a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}