{"product_id":"eaton-kdc3350y-350a-600v-3-pole-bolt-on-circuit-breaker","title":"Eaton KDC3350Y - 350 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton KDC3350Y is a rugged 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch-circuit protection for panelboards and load centers. With a substantial 350 A rating and a 600 V capacity, it’s engineered to handle demanding residential, commercial, and light industrial environments where reliable disconnection and robust bus connections matter most.\u003c\/p\u003e \u003ch3\u003eWhy the KDC3350Y stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant connection to the bus, minimizing movement, arcing risk, and nuisance trips in equipment rooms or spaces with equipment vibration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection for both overloads and short circuits, helping protect wiring and connected equipment from damage while reducing false trips.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e ensures coordinated protection across all phases, improving safety and reliability in three-phase systems common to commercial and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-loadcenter compatibility\u003c\/strong\u003e engineered to pair with matching Eaton OEM loadcenters and panelboards, simplifying replacement, upgrades, or phased panel work without sacrificing performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity performance\u003c\/strong\u003e 350 A rating paired with a 600 V rating makes it suitable for large feeders, subpanels, or service-distribution points where robust protection is required.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential service panels and subpanels where a trustworthy, high-amperage protection device is needed\u003c\/li\u003e \u003cli\u003eCommercial electrical rooms and small-to-mid size office builds requiring reliable branch-circuit protection\u003c\/li\u003e \u003cli\u003eLight industrial panels and equipment rooms where vibration resistance and durable bus connections are critical\u003c\/li\u003e \u003cli\u003ePanelboard upgrades or replacements that demand exact-fit mounting and compatibility with OEM components\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat problems it solves\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrevents damage from overcurrent and short-circuit events by quickly interrupting faulty circuits\u003c\/li\u003e \u003cli\u003eReduces the frequency of trips due to vibration or loose connections thanks to secure bolt-on mounting\u003c\/li\u003e \u003cli\u003eProvides consistent protection characteristics across three phases, helping maintain balanced loads and equipment safety\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and practical considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUse in installations that require bolt-on MCCB protection to ensure a sturdy, long-lasting bus connection\u003c\/li\u003e \u003cli\u003eInstall in panelboards and load centers designed to accept the KDC3350Y’s bolt-on format and three-pole architecture\u003c\/li\u003e \u003cli\u003eFollow manufacturer torque specifications for mounting hardware to preserve vibration resistance and electrical integrity\u003c\/li\u003e \u003cli\u003eGiven its thermal-magnetic trip behavior, there is no user-adjustable trip setting—the device is designed for stable, predictable protection aligned with system ratings\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\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 KDC3350Y\u003c\/li\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 350 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Bolt-on\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eHow it compares to alternatives\u003c\/h3\u003e\n\u003cp\u003eCompared with common plug-on or thinner-profile breakers, the KDC3350Y emphasizes a bolt-on connection that resists vibration and movement, making it a preferred choice in panels subject to mechanical stress or periodic reconfiguration. Its thermal-magnetic trip unit provides a balanced approach to protection—offering fast response to short circuits while maintaining dependable overload protection—without the variability of adjustable trip settings. When your installation requires a robust, high-current 3-pole solution that integrates cleanly with OEM panel centers, the KDC3350Y delivers a reliable, purpose-built option designed to work as part of a cohesive Eaton panel ecosystem.\u003c\/p\u003e \u003ch3\u003eEasy to source, easy to trust\u003c\/h3\u003e\n\u003cp\u003eDesigned for a straightforward replacement or upgrade path in compatible Eaton panelboards and load centers, the KDC3350Y is a practical choice for projects that demand consistent performance, long service life, and clear alignment with existing electrical infrastructure. Whether you’re refreshing aging equipment, expanding capacity, or consolidating protection on a new circuit, this breaker provides the authoritative combination of amperage, voltage rating, and mechanical fit that professionals rely on.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349630636194,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_096cd32e-555d-4c6e-be9a-cf4c71b43115.png?v=1764151933","url":"https:\/\/www.ampstate.com\/products\/eaton-kdc3350y-350a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}