{"product_id":"square-d-li36450-circuit-breaker","title":"Square D | LI36450 | Circuit Breaker | 450A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D LI36450 circuit breaker — a robust, genuine protection solution engineered for demanding electrical systems. This 450A, 3-pole, 600V unit is ideal for maintenance, retrofit, and replacement projects where exact specifications matter, ensuring your three-phase power stays safe and reliably controlled.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 450A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this matters\u003c\/h3\u003e\n\u003cp\u003eChoosing the authentic Square D LI36450 guarantees precise compatibility with your panel and electrical system. The part number is the best reference for ensuring proper fit, bus connections, and trip characteristics, which helps maintain correct protection coordination and minimizes downtime during replacements. Using this exact model preserves the intended performance and safety standards of your 3-phase, 600V distribution network.\u003c\/p\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eRepair or replacement in existing Square D panelboards that require a 450A, 3-pole, 600V breaker\u003c\/li\u003e \u003cli\u003eRetrofits and capacity upgrades for three-phase 600V distributions in industrial settings\u003c\/li\u003e \u003cli\u003eFeeder protection for heavy machinery, manufacturing lines, and critical equipment in commercial facilities\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical benefits\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDirect, authentic compatibility simplifies sourcing and reduces risk of misfit parts\u003c\/li\u003e \u003cli\u003eMatched amperage and voltage ratings help ensure reliable tripping behavior under fault conditions\u003c\/li\u003e \u003cli\u003eSupports consistent protection across your three-phase system, helping safeguard equipment and personnel\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and safety notes\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify fit and ratings before ordering — LI36450 is the best reference for compatibility\u003c\/li\u003e \u003cli\u003eHave a licensed electrician perform installation, following proper lockout\/tagout procedures\u003c\/li\u003e \u003cli\u003eEnsure correct torque on terminal connections and adherence to your panel’s installation guidelines\u003c\/li\u003e \u003cli\u003eConfirm your system is indeed a 3-phase, 600V setup to match the breaker’s specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424427757730,"sku":"LI36450","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-li36450-circuit-breaker-450a-3-pole-600v-455.webp?v=1789358202","url":"https:\/\/www.ampstate.com\/products\/square-d-li36450-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}