{"product_id":"eaton-kd3400c-400a-600v-3-pole-circuit-breaker","title":"Eaton KD3400C - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Eaton KD3400C—400 A, 600 V, 3-pole molded case circuit breaker, designed to deliver dependable branch-circuit protection for panelboards and loadcenters. Built to handle demanding electrical loads with precision, it helps protect wiring and equipment from overloads and short circuits so your systems stay reliable.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey benefits that matter in real-world installations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSpace-efficient molded case design\u003c\/strong\u003e minimizes panel crowding and makes retrofits or upgrades in existing panels straightforward, helping you maximize every inch of panel space without sacrificing protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines temperature-sensitive protection with magnetic fault detection, delivering stable, repeatable trip performance under varying load conditions and fast response to short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible for seamless integration\u003c\/strong\u003e designed to drop into matching Eaton loadcenters and panelboards, ensuring consistent electrical characteristics and hassle-free installation.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple applications\u003c\/strong\u003e suitable for residential, commercial, and light industrial environments where robust overcurrent and short-circuit protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Eaton\u003c\/li\u003e \u003cli\u003ePart number: KD3400C\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage rating: 400 A\u003c\/li\u003e \u003cli\u003eVoltage rating: 600 V\u003c\/li\u003e \u003cli\u003eNumber of poles: 3\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWho will benefit most\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eElectrical pros upgrading or expanding panelboards in residential or commercial spaces where a reliable 3-pole, 400 A protection device is required\u003c\/li\u003e \u003cli\u003eMaintenance teams managing loadcenters in light industrial settings that demand consistent trip behavior and compatibility with OEM panels\u003c\/li\u003e \u003cli\u003eSpecifiers seeking a trusted, durable molded case breaker with a clear specification to match existing Eaton infrastructure\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhy this model stands out\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eDurable, compact design paired with a precise thermal-magnetic trip means fewer nuisance trips and better protection alignment with wire sizing and panel ratings.\u003c\/li\u003e \u003cli\u003eOEM compatibility reduces procurement surprises and ensures that replacement and service parts align with your existing Eaton ecosystem.\u003c\/li\u003e \u003cli\u003eA robust solution for feeders and main\/branch circuits in diverse environments—delivering reliable protection where it matters most without overbuilding the panel space.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen you choose the Eaton KD3400C, you’re selecting a proven, purpose-built solution for reliable circuit protection in panelboards and loadcenters. Ideal for projects that require a compact, high-capacity 3-pole breaker with predictable trip characteristics, backed by Eaton’s engineering integrity and compatibility across Eaton OEM panels. Available through AmpState as a trusted source for electrical equipment, this KD3400C helps you build safer, more dependable electrical distributions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349627785378,"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_e75c5d44-5508-498c-b6ba-38a47a846ae5.png?v=1764151846","url":"https:\/\/www.ampstate.com\/products\/eaton-kd3400c-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}