{"product_id":"eaton-chkd3400t57wpn","title":"Eaton CHKD3400T57WPN 400A 3-Pole 600 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eThe Eaton CHKD3400T57WPN is a robust 400 A, 3-pole circuit breaker designed to protect demanding three-phase electrical systems up to 600 V. Built with Eaton’s engineering precision, this unit delivers reliable interruption when faults occur, helping to safeguard power distribution, motor loads, and critical equipment in industrial and commercial environments. If you’re upgrading a panel or stocking spare parts for a high-capacity installation, the CHKD3400T57WPN is a purpose-built choice that aligns with professional electrical standards and Eaton’s legacy of dependable protection.\u003c\/p\u003e \u003ch2\u003eKey specifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e CHKD3400T57WPN\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eThree-pole protection for three-phase systems\u003c\/h2\u003e\n\u003cp\u003eDesigned for three-phase power distribution, the Eaton CHKD3400T57WPN provides synchronized interruption across all poles, minimizing the risk of unbalanced faults and ensuring consistent protection for motors, feeders, and commercial\/industrial equipment. Its 600 V rating makes it suitable for a wide range of industrial power networks, while the 400 A capacity handles substantial load requirements without sacrificing safety or reliability.\u003c\/p\u003e \u003ch2\u003eIdeal applications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eMain feeders and service-disconnect scenarios in industrial facilities\u003c\/li\u003e \u003cli\u003eMotor control centers and large-capacity distribution panels\u003c\/li\u003e \u003cli\u003eCommercial spaces with heavy equipment and compressed-air systems, pumps, and conveyors\u003c\/li\u003e \u003cli\u003eReplacement or upgrade path for legacy Eaton installations requiring exact part traceability\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhat sets the Eaton CHKD3400T57WPN apart\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongexact replacement compatibility:\u003e The CHKD3400T57WPN part number identifies a precise 400 A, 3-pole, 600 V solution, helping reduce compatibility concerns during procurement and maintenance.\u003c\/strongexact\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-phase integrity:\u003c\/strong\u003e A dedicated 3-pole design maintains coordinated protection across all phases, improving fault isolation and system safety in complex power networks.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTrustworthy Eaton engineering:\u003c\/strong\u003e Built on Eaton’s decades of electrical protection experience, this breaker is designed to perform reliably in demanding environments where uptime matters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical guidance for installation and care\u003c\/h2\u003e\n\u003cp\u003eBefore installing or replacing, verify that the panel or enclosure supports a 400 A, 3-pole, 600 V configuration and that mounting and termination provisions align with your Eaton ecosystem. Follow local electrical codes and the manufacturer’s installation instructions to ensure proper alignment, secure terminations, and safe handling. For ongoing performance, perform routine inspections of connections and enclosure integrity as part of your preventive maintenance plan.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46423450386594,"sku":"CHKD3400T57WPN","price":19353.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_229276d9-908d-46df-93e5-6fe31866e0ff.png?v=1765492975","url":"https:\/\/www.ampstate.com\/products\/eaton-chkd3400t57wpn","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}