{"product_id":"square-d-lgf36400cu31x-circuit-breaker","title":"Square D | LGF36400CU31X | Circuit Breaker | 400A | 3-Pole","description":"\u003cdiv\u003e\n\u003cp\u003eWhen your three‑phase system needs robust, dependable protection, the Square D LGF36400CU31X circuit breaker stands up to the job. This 400A, 3-pole device is designed for high-load environments and is ideal for maintenance, retrofit, or replacement projects where exact compatibility matters.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3‑Pole\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWhy this Square D breaker stands out\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrongexact part reference:\u003e The LGF36400CU31X is identified by its specific part number, making it the best reference for matching panels and ensuring reliable, consistent protection across all three phases.\u003c\/strongexact\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eHigh-capacity protection:\u003c\/strong\u003e With a 400A rating, this breaker is built to shield large loads and demanding equipment from overcurrent scenarios in commercial or industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile installation context:\u003c\/strong\u003e Designed for maintenance, retrofit, and replacement, it provides a practical, drop-in solution when upgrading or refreshing a panel that requires a 3‑pole, high‑ampere device.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cp\u003eUse the Square D LGF36400CU31X in three-phase distribution panels where a 400A, 3-pole breaker is required. It’s well-suited for upgrading legacy hardware during facility retrofits, performing scheduled maintenance without compromising protection, or replacing a worn‑out unit with an exact, compatible match.\u003c\/p\u003e \u003ch2\u003eHow to verify compatibility\u003c\/h2\u003e\n\u003cp\u003eBefore ordering, confirm fit and ratings with your panel’s catalog. Rely on the LGF36400CU31X part number as the primary reference to guarantee compatibility and uninterrupted protection for your electrical system.\u003c\/p\u003e \u003ch2\u003eInstallation and safety note\u003c\/h2\u003e\n\u003cp\u003eFollow local electrical codes and consult a licensed electrician when installing or replacing circuit breakers. Ensure power is fully disconnected and equipment is de‑energized before any service to avoid hazards.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426751107234,"sku":"LGF36400CU31X","price":28976.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-lgf36400cu31x-circuit-breaker-400a-3-pole-463.webp?v=1789616241","url":"https:\/\/www.ampstate.com\/products\/square-d-lgf36400cu31x-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}