{"product_id":"eaton-ld3300-300a-600v-3-pole-circuit-breaker","title":"Eaton LD3300 - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet a robust solution for reliable power protection: the Eaton LD3300—300 A, 600 V, 3-pole molded case circuit breaker. Engineered to sit neatly in panelboards and loadcenters, this MCCB is built to handle demanding commercial and light-industrial environments while staying compact enough to maximize panel space. In AmpState's catalog, the Eaton LD3300 is a trusted choice for engineers and electricians seeking dependable branch circuit protection.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWhat sets the LD3300 apart?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e saves valuable panel space without sacrificing performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection: thermal for normal overloads and magnetic for high-energy faults, ensuring fast disconnection when it matters most.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e supports three-phase circuits, ideal for commercial equipment, conveyor systems, and distributed power in offices and light manufacturing.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e300 A, 600 V rating\u003c\/strong\u003e designed for branch circuit protection in medium to large loads and feeders; suitable for residential, commercial, and light industrial applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e designed to pair with matching Eaton OEM loadcenters and panelboards for a dependable, integrated protection system.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eKey use cases and scenarios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacing aging or worn-out breakers in panelboards serving commercial offices or small data rooms with a single, trusted Eaton solution.\u003c\/li\u003e \u003cli\u003eFeeding high-demand equipment from a central service panel in light industrial facilities where a consistent 3-phase protection profile is essential.\u003c\/li\u003e \u003cli\u003eUpgrading residential or small commercial loadcenters to modern, coordinated protection by installing a 3-pole breaker that matches the panel’s design and bus configuration.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot at a glance\u003c\/strong\u003e\u003c\/p\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 LD3300\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 300 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 V\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 \u003cp\u003e\u003cstrong\u003ePractical tips for installation and long-term reliability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eEnsure the breaker is used with matching Eaton loadcenters or panelboards to guarantee a proper fit, bus alignment, and mechanical interlock compatibility.\u003c\/li\u003e \u003cli\u003ePlan for future expansion: a 3-pole design provides the groundwork for adding or upgrading 3-phase loads without changing the protection strategy.\u003c\/li\u003e \u003cli\u003eFollow standard electrical safety practices during installation; verify that circuits are de-energized and locked out before service work.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re equipping a new commercial space, upgrading a service panel in a light-industrial setting, or refreshing a residential loadcenter with more capable protection, the Eaton LD3300 delivers dependable, space-efficient, three-pole protection you can trust.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46349631553698,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/eaton_breaker_and_panels_38f0306d-dfe6-4204-a32d-7dfc4487c712.png?v=1764151964","url":"https:\/\/www.ampstate.com\/products\/eaton-ld3300-300a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}