{"product_id":"eaton-hkd3400c-400a-600v-3-pole-circuit-breaker","title":"Eaton HKD3400C - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered by Eaton, the HKD3400C is a 400A, 600V, 3-pole molded case circuit breaker designed for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Its compact form optimizes panel space without compromising safety or performance, making it a practical choice for modern electrical installations.\u003c\/p\u003e \u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes panel space, enabling efficient layouts in residential, commercial, and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection performance across varying temperatures and load conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole, 400A, 600V\u003c\/strong\u003e configuration tailored for three-phase systems and higher-current circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e designed to work with matching Eaton OEM loadcenters and panelboards for seamless integration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eTargeted protection\u003c\/strong\u003e guards against branch circuit overcurrent and short circuits, helping prevent equipment damage and downtime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\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 HKD3400C\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 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cp\u003eIdeal for protecting feeders and branch circuits in a range of environments, the HKD3400C is well-suited for:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential panelboards seeking reliable three-phase protection where applicable\u003c\/li\u003e \u003cli\u003eCommercial electrical panels requiring compact, space-efficient breakers\u003c\/li\u003e \u003cli\u003eLight industrial installations that demand robust protection for higher-current circuits\u003c\/li\u003e \u003cli\u003eUpgrading existing panels with OEM-compatible components to ensure consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy Choose the HKD3400C\u003c\/h2\u003e\n\u003cp\u003eChoosing this Eaton breaker means aligning with a proven thermal-magnetic protection strategy that responds predictably to faults while maintaining steady operation under normal conditions. The 3-pole design supports three-phase systems, and the 400A rating covers substantial feeder protection without overcomplicating electrical layouts. When paired with matching OEM loadcenters and panelboards, it offers a cohesive, reliable protection solution that simplifies installation and ongoing maintenance.\u003c\/p\u003e \u003ch2\u003eInstallation and Compatibility\u003c\/h2\u003e\n\u003cp\u003eDesigned for straightforward integration, the HKD3400C pairs with compatible Eaton OEM loadcenters and panelboards to maintain consistent trip characteristics and coordination across your protection scheme. This makes it a practical upgrade option for projects aiming to standardize components and ensure predictable protection performance.\u003c\/p\u003e \u003cp\u003eWhether you're assembling a new panel from the ground up or upgrading an existing distribution system, the Eaton HKD3400C delivers trusted protection for demanding electrical environments. Add it to your AmpState lineup for a dependable, industry-grade solution that prioritizes safety, space efficiency, and long-term reliability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349604651170,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton-hkd3400c-400-a-600-v-3-pole-circuit-breaker-ampstate-breakers-297.webp?v=1788690484","url":"https:\/\/www.ampstate.com\/products\/eaton-hkd3400c-400a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}