{"product_id":"eaton-hldb3300x-circuit-breaker","title":"Eaton | HLDB3300X | Circuit Breaker | 300A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton HLDB3300X circuit breaker—a precise, high-demand protective device designed for 3-pole, 600V systems with a 300A rating. Built for maintenance, retrofit, and replacement projects, it keeps critical circuits safe and online with minimal downtime.\u003c\/p\u003e \u003ch3\u003eWhy choose HLDB3300X\u003c\/h3\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact-spec compatibility:\u003c\/strong\u003e Use HLDB3300X as the primary reference to match your panel’s requirements; it’s specifically identified for matching high-current, 3-pole, 600V configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-current protection:\u003c\/strong\u003e 300A capacity protects large loads and feeders from overloads without compromising system integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-pole design for balanced protection:\u003c\/strong\u003e Ideal for three-phase systems, ensuring equal protection across all phases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile application:\u003c\/strong\u003e Suitable for new installations, panel retrofits, or replacement of a failed device in existing Eaton-based systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClear part identification:\u003c\/strong\u003e Part number HLDB3300X simplifies sourcing and reduces ordering errors.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications and checklists\u003c\/h3\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 300A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e HLDB3300X\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment note:\u003c\/strong\u003e Confirm fit and ratings before ordering; the HLDB3300X is the best reference for compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider this breaker?\u003c\/h3\u003e \u003cp\u003eFacility maintenance teams, electrical contractors, and panel designers who require dependable protection for high-current, three-phase circuits will find this Eaton breaker ideal. If your project involves updating an existing Eaton system, upgrading to a 600V service, or replacing a failed 300A, 3-pole component, HLDB3300X ensures a reliable, compatible fit.\u003c\/p\u003e \u003ch3\u003ePractical tips for installation and performance\u003c\/h3\u003e \u003cul\u003e\n\u003cli\u003eBefore purchasing, verify your panel’s electrical rating and the exact pole configuration to ensure seamless replacement.\u003c\/li\u003e\n\u003cli\u003eKeep a spare HLDB3300X on hand for proactive maintenance to minimize downtime during service windows.\u003c\/li\u003e\n\u003cli\u003eConsult a qualified electrician to validate all connections, torque specs, and safety compliance for your installation environment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426465468578,"sku":"HLDB3300X","price":2010.0,"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-hldb3300x-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}