{"product_id":"eaton-hkd3400t106w-circuit-breaker","title":"Eaton | HKD3400T106W | Circuit Breaker | 400A | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eEaton HKD3400T106W\u003c\/strong\u003e is a 400 A, 3-pole circuit breaker engineered for demanding electrical layouts where robust protection and reliable operation matter.\u003c\/p\u003e \u003cp\u003eDesigned for maintenance, retrofit, and replacement projects, this breaker slides into Eaton-compatible panels and disconnects with precision when faults occur, helping prevent downstream equipment damage and unplanned downtime.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage\u003c\/strong\u003e: 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles\u003c\/strong\u003e: 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number\u003c\/strong\u003e: HKD3400T106W\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Maintenance, retrofit, and replacement in compatible Eaton systems\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose this specific unit? The dedicated part number ensures you’re getting the exact trip curve, mechanical interlock, and terminal configuration required by your panel. This isn’t a generic fit—it’s a precise match for Eaton installations demanding 400 A three-phase protection.\u003c\/p\u003e \u003cp\u003eIdeal for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eIndustrial control panels and distribution systems with three-phase loads\u003c\/li\u003e \u003cli\u003eService upgrades where a 400 A main or feeder protection is required\u003c\/li\u003e \u003cli\u003eLegacy panel retrofits where compatibility with HKD3400T106W is specified\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical considerations and tips:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eBefore ordering, \u003cstrong\u003econfirm fit and ratings\u003c\/strong\u003e using the part number HKD3400T106W as the primary reference for compatibility.\u003c\/li\u003e \u003cli\u003eInspect the panel’s interrupting rating to ensure it matches or exceeds your system’s fault current.\u003c\/li\u003e \u003cli\u003eFor maintenance or replacement projects, verify the existing wiring terminals and torque specs align with this three-pole 400 A device.\u003c\/li\u003e \u003cli\u003eUse in three-phase installations where stable protection is critical to avoid nuisance trips in high-demand equipment like motors and drives.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith Eaton’s reputation for reliability and the specificity of the HKD3400T106W designation, this circuit breaker provides not just protection, but confidence—keeping your electrical system running smoothly, with fewer interruptions and faster service restoration after faults.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46424363008162,"sku":"HKD3400T106W","price":10021.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/eaton-hkd3400t106w-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}