{"product_id":"eaton-hkd3350y-350a-600v-3-pole-bolt-on-circuit-breaker","title":"Eaton HKD3350Y - 350 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton HKD3350Y is a robust, three-phase bolt-on molded case circuit breaker built to safeguard large branch circuits in panelboards and load centers. With a 350A rating and a 600V insulation capability, this unit delivers dependable overcurrent and short-circuit protection where it matters most—in demanding commercial and light industrial environments as well as resilient residential setups that require higher ampacity distribution.\u003c\/p\u003e \u003cp\u003eWhy the HKD3350Y stands out:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant connection to the bus, reducing looseness and ensuring consistent electrical contact even in installations subject to vibration or movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines thermal protection for overload conditions with magnetic instantaneous response for short circuits, delivering stable, repeatable protection you can rely on under varying loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e engineered to pair seamlessly with matching Eaton loadcenters and panelboards for straightforward upgrades, expansions, or replacements without compatibility concerns.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-current capability\u003c\/strong\u003e 350A rating supports substantial feeders and branch circuits, enabling fewer devices for larger circuits while maintaining precise protection characteristics.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V rating\u003c\/strong\u003e aligns with common commercial and industrial power distribution networks, offering solid insulation and safety margins for today’s electrical systems.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Eaton\u003c\/li\u003e \u003cli\u003ePart Number: HKD3350Y\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage: 350A\u003c\/li\u003e \u003cli\u003eVoltage: 600V\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Bolt-on\u003c\/li\u003e \u003cli\u003eApplications: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eNew installations in commercial panelboards where high-current distribution is needed without sacrificing protection quality.\u003c\/li\u003e \u003cli\u003eRetrofitting existing panels that require a rugged, compatible 3-pole solution for three-phase circuits.\u003c\/li\u003e \u003cli\u003eLight industrial electrical rooms where vibration resistance and durable bolt-on mounting prevent connection faults over time.\u003c\/li\u003e \u003cli\u003eResidential-commercial hybrids where large feeders demand reliable thermal-magnetic protection and straightforward integration with OEM panels.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical benefits you’ll notice\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eFewer nuisance trips thanks to precise trip curves that respond appropriately to overload and short-circuit events.\u003c\/li\u003e \u003cli\u003eEnhanced service reliability in environments with mechanical vibration or movement, thanks to secure mounting.\u003c\/li\u003e \u003cli\u003eStreamlined maintenance and stocking with OEM-compatible design—simplifies inventory management and reduces downtime during replacements.\u003c\/li\u003e \u003cli\u003eClear, durable protection for demanding three-phase circuits, reducing the risk of electrical faults cascading through the distribution system.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading a panelboard in a commercial space, expanding a load center for a new project, or replacing aged protection devices in a light industrial setting, the Eaton HKD3350Y delivers the high-current, reliable protection you need with installation that’s as straightforward as it is dependable. Choose HKD3350Y for a resilient, long-lasting solution that aligns with your Eaton-compatible infrastructure and delivers predictable performance under real-world conditions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349604618402,"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_45c3bd66-6117-405a-ab39-6dd0608d1492.png?v=1764151049","url":"https:\/\/www.ampstate.com\/products\/eaton-hkd3350y-350a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}