{"product_id":"eaton-ld3300y-circuit-breaker","title":"Eaton | LD3300Y | Circuit Breaker | 300A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Eaton \u003cstrong\u003eLD3300Y\u003c\/strong\u003e circuit breaker: a \u003cstrong\u003e300A, 3-pole\u003c\/strong\u003e protective device designed for demanding electrical environments where reliability and precise compatibility matter. With a \u003cstrong\u003e600V\u003c\/strong\u003e rating, this breaker guards three-phase feeders, helping prevent fault currents from escalating across multiple lines.\u003c\/p\u003e \u003cp\u003eBuilt for \u003cstrong\u003emaintenance, retrofit, and replacement\u003c\/strong\u003e projects, the LD3300Y is your go-to choice when exact specifications are non-negotiable. For the most reliable fit, use the \u003cstrong\u003eLD3300Y\u003c\/strong\u003e part number as the primary reference to confirm compatibility before ordering.\u003c\/p\u003e \u003ch3\u003eWhy the LD3300Y stands out\u003c\/h3\u003e\n\u003cp\u003eThis breaker is purpose-built to deliver predictable, coordinated protection for three-phase systems. It combines the right amperage, pole count, and voltage rating to align with typical industrial and commercial electrical infrastructure, reducing the guesswork that comes with replacements or upgrades.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact 300A, 3-Pole configuration\u003c\/strong\u003e ensures balanced protection across all three phases, supporting stable operation of large feeders and equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600V capability\u003c\/strong\u003e suits mid- to high-voltage distribution networks commonly found in factories, data centers, and processing facilities.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEfficient maintenance and retrofit\u003c\/strong\u003e workflows thanks to a readily available, clearly specified reference part number, minimizing misfits and downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eClear compatibility guidance\u003c\/strong\u003e—rely on the LD3300Y designation as your best reference when assessing panel compatibility and replacement fit.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal use cases include:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading an existing three-phase panel that requires a 300A, 3-Pole breaker to restore full protection for feeders and connected equipment.\u003c\/li\u003e \u003cli\u003eRetrofits of legacy Eaton panels or systems that originally used LD-series breakers, simplifying spare parts management and service lead times.\u003c\/li\u003e \u003cli\u003eRoutine maintenance where having a precisely rated, ready-to-install replacement reduces error risk and installation time.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical installation notes:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways verify that your system is rated for \u003cstrong\u003e600V\u003c\/strong\u003e and that \u003cstrong\u003e300A\u003c\/strong\u003e is the correct trip setting for the circuit you’re protecting.\u003c\/li\u003e \u003cli\u003eCross-check catalog numbers against Eaton’s breaker family, using the \u003cstrong\u003eLD3300Y\u003c\/strong\u003e as the definitive compatibility reference.\u003c\/li\u003e \u003cli\u003eKeep spare LD-series breakers in a controlled environment to preserve performance and extend service life in the field.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn summary, the Eaton \u003cstrong\u003eLD3300Y\u003c\/strong\u003e is a precisely specified, three-pole solution tailored for professionals who need dependable protection without compromising on fit or future maintenance. If your project demands a rugged, 600V-capable breaker with a 300A rating that integrates smoothly into Eaton-equipped systems, the LD3300Y delivers clarity, compatibility, and confidence in every installation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Eaton","offers":[{"title":"Default Title","offer_id":46426443940002,"sku":"LD3300Y","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-ld3300y-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}