{"product_id":"eaton-kdb3400w-400a-600v-3-pole-bolt-on-circuit-breaker","title":"Eaton KDB3400W - 400 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered by Eaton, the KDB3400W is a 400 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to deliver unwavering branch circuit protection and reliable short-circuit interruption in panelboards and load centers. Its robust design targets the demanding environments of residential, commercial, and light industrial electrical installations, ensuring your critical circuits stay safeguarded when it matters most.\u003c\/p\u003e \u003ch3\u003eWhy the KDB3400W stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e: A rigid connection to the bus helps resist vibration-induced movement, maintaining a dependable feed and reducing wear over time in busy panel environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: Dual‑element protection offers stable, repeatable response to overloads and rapid interruption during short circuits, helping minimize damage to wiring and connected equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e: Specifically engineered to integrate with matching OEM load centers and panelboards, promoting consistent performance and straightforward replacement or upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e: Ideal for residential service panels, commercial distribution boards, and light industrial installations that require robust 400 A protection at up to 600 V.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\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: KDB3400W\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: 400 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 in panelboards\/load centers\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases and benefits\u003c\/h3\u003e\n\u003cp\u003eThe KDB3400W is an excellent choice when upgrading or replacing protection on large-draw circuits in panelboards or load centers. Use it to shield feeders and main branch circuits in spaces prone to vibration or where a rigid, durable connection is essential for long-term reliability. Its thermal-magnetic characteristics help prevent nuisance tripping from gradual heating while still delivering swift interruption during high‑fault events, reducing the risk of damage to downstream equipment.\u003c\/p\u003e \u003ch3\u003eIdeal for\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eResidential panel upgrades requiring high-capacity protection for major feeders\u003c\/li\u003e \u003cli\u003eCommercial distribution boards that demand dependable 3‑pole, 400 A protection\u003c\/li\u003e \u003cli\u003eLight industrial electrical rooms where vibration resistance and reliability are priorities\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eChoose the Eaton KDB3400W for a dependable, compatible, and performance-focused solution that aligns with your panelboard or load center’s design intent, while delivering clear protection against overcurrent and short circuits.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349628702882,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-kdb3400w-400-a-600-v-3-pole-bolt-on-circuit-breaker-ampstate-628.webp?v=1788695746","url":"https:\/\/www.ampstate.com\/products\/eaton-kdb3400w-400a-600v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}