{"product_id":"square-d-lgf36400u31x-circuit-breaker","title":"Square D | LGF36400U31X | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eMeet Square D LGF36400U31X, a rugged circuit breaker designed to protect high-demand electrical systems. This 400A, 3-pole device is rated for 600V and is tailored for maintenance, retrofit, and replacement projects where exact specifications matter. The LGF36400U31X is identified by its part number, providing a reliable reference to ensure compatibility with your Square D panels or switchgear before you purchase.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 600 V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUsage:\u003c\/strong\u003e Ideal for maintenance, retrofit, and replacement tasks that require precise specification matching\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eCompatibility note:\u003c\/strong\u003e Confirm fit and ratings before ordering; the part number LGF36400U31X is your best reference for ensuring a correct match\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhy choose this model? When your application demands robust three-phase protection at higher currents, this 400A, 3-pole breaker delivers reliable interruption capability at up to 600V. It’s designed to slot into systems that require the exact LGF-series characteristics, helping you maintain electrical integrity while minimizing downtime during upgrades or repairs.\u003c\/p\u003e \u003cp\u003eIdeal use cases include industrial power distribution, large commercial feeders, and retrofit projects where legacy panels require a precise, compatible replacement. This breaker is most effective in setups that rely on Square D’s established reliability for consistent performance over time.\u003c\/p\u003e \u003cp\u003ePractical tips for procurement and installation:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eDouble-check that the panel or switchgear you’re upgrading expects an LGF-series, 400A, 3-pole, 600V device, using the LGF36400U31X part number as the compatibility reference.\u003c\/li\u003e \u003cli\u003eUse only if the panel labeling confirms the interrupt rating and frame compatibility align with this model.\u003c\/li\u003e \u003cli\u003eDuring replacement, ensure the main power is de-energized and all safety procedures are followed according to your facility’s electrical standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426297041058,"sku":"LGF36400U31X","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\/square-d-lgf36400u31x-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}