{"product_id":"eaton-hkddc3400f-circuit-breaker","title":"Eaton | HKDDC3400F | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton HKDDC3400F Circuit Breaker — a rugged, high-capacity protection solution engineered for demanding 3-phase power systems. With a 400A rating and a 3-pole configuration, this 600V breaker is built to safeguard industrial or commercial electrical distributions during maintenance, retrofit, or replacement projects. Remember: the part number HKDDC3400F is your most reliable reference for compatibility, so verify fit and ratings before ordering.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\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\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy the HKDDC3400F stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong purpose-built for maintenance retrofit and replacement:\u003e Designed to slot into existing 3-phase installations where a high-current, reliable breaker is needed without overwhelming system changes.\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole protection for balanced trip behavior:\u003c\/strong\u003e Ensures synchronized shutdown across all phases, reducing the risk of unequal phase loading and electrical faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility guidance:\u003c\/strong\u003e The HKDDC3400F is the definitive reference when matching breakers to Eaton-compatible panels and assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal uses and scenarios\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eUpgrading legacy panels in industrial facilities that run heavy machinery and high-current loads, where precise 400A protection is required.\u003c\/li\u003e \u003cli\u003eRetrofits in manufacturing lines that demand quick replacements with exact amperage, pole count, and voltage specifications.\u003c\/li\u003e \u003cli\u003eMaintenance outages where a like-for-like replacement minimizes downtime and preserves system labeling and protection schemes.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eCompatibility and purchasing guidance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings using the part number HKDDC3400F before ordering to ensure seamless replacement in your specific panel or switchgear lineup.\u003c\/li\u003e \u003cli\u003eAssess your system’s current, voltage, and three-phase configuration to align with the 400A, 3-pole, 600V specifications.\u003c\/li\u003e \u003cli\u003eKeep a focus on safety and compliance by coordinating with qualified personnel during installation and verification steps after replacement.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat you gain with this Eaton breaker\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eReliable, high-current protection that supports continuous operation in demanding environments.\u003c\/li\u003e \u003cli\u003eStreamlined maintenance and retrofit planning thanks to a well-defined part number reference for compatibility.\u003c\/li\u003e \u003cli\u003eConsistent protection across all three phases, promoting system stability and reducing the likelihood of phase-related faults.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426090209442,"sku":"HKDDC3400F","price":43890.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-hkddc3400f-circuit-breaker-400a-3-pole-600v-625.webp?v=1789508658","url":"https:\/\/www.ampstate.com\/products\/eaton-hkddc3400f-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}