{"product_id":"eaton-hkd3300v","title":"Eaton HKD3300V 300A 3-Pole 3300 V Circuit Breaker","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton HKD3300V — a purpose-built, high-voltage circuit breaker engineered for demanding industrial power systems. With a 300 A current rating, three poles, and a 3300 V operating voltage, this breaker is designed to protect large-scale electrical feeders and equipment against overloads and short circuits while maintaining reliable three-phase protection across all circuits.\u003c\/p\u003e \u003ch2\u003eKey specifications at a glance\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Eaton\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e HKD3300V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCurrent rating:\u003c\/strong\u003e 300 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 3300 V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this high-voltage breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole synchronized protection:\u003c\/strong\u003e Consistent tripping across all phases to prevent unbalanced faults that can stress motors, transformers, and feeders.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect HV compatibility:\u003c\/strong\u003e Lends itself to high-voltage distribution schemes and switchgear where 3.3 kV operation is required, reducing the need for intermediate protection layers.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eRobust industrial design:\u003c\/strong\u003e Built to withstand the rigors of demanding environments, helping minimize nuisance trips and extend service life in harsh facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear, actionable protection:\u003c\/strong\u003e Delivers dependable interruption of fault currents to safeguard downstream equipment, supporting safer operation and reduced maintenance downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProven reliability with Eaton engineering support:\u003c\/strong\u003e Backed by Eaton’s technical expertise and service network, making it a solid choice for long-term HV protection strategies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eProtection for large industrial feeders feeding motors, pumps, and heavy machinery in manufacturing plants.\u003c\/li\u003e \u003cli\u003eHigh-voltage distribution panels and switchgear where 3.3 kV networks are standard.\u003c\/li\u003e \u003cli\u003eSubstation ancillary circuits and other HV protection applications requiring a dependable 3-phase breaker.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eInstallation and best practices\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eOnly qualified electrical professionals should install or service high-voltage equipment. Follow all local codes and Eaton installation guidelines.\u003c\/li\u003e \u003cli\u003eEnsure conductor sizing and termination practices meet system requirements for 300 A and 3300 V operation.\u003c\/li\u003e \u003cli\u003eVerify proper alignment with surrounding HV protection components to maintain coordinated protection and predictable tripping behavior.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical considerations\u003c\/h2\u003e\n\u003cp\u003eThe Eaton HKD3300V delivers a precise, reliable protection solution for high-voltage three-phase systems. Its 300 A rating supports substantial load centers, while the 3-pole design ensures balanced response to faults. If your electrical infrastructure operates at 3.3 kV and requires robust, built-to-last protection, the HKD3300V is purpose-built to meet those demands with clarity and confidence.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46423332290722,"sku":"HKD3300V","price":23038.0,"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-hkd3300v","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}