{"product_id":"square-d-lla36400cu31x-circuit-breaker","title":"Square D | LLA36400CU31X | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D LLA36400CU31X Circuit Breaker—built for industrial reliability and straightforward retrofits. This 400A, 3-pole device is rated for up to 600V, making it a solid choice for protecting three-phase power distribution in demanding environments.\u003c\/p\u003e \u003cp\u003eKey advantages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExact-fit compatibility\u003c\/strong\u003e: The part number LLA36400CU31X is your best reference when matching original equipment, ensuring a seamless replacement or upgrade without panel modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowerful protection for three-phase circuits\u003c\/strong\u003e: With a 400A rating and a 3-pole configuration, it provides coordinated protection across all three phases, helping prevent equipment damage and downtime.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-voltage capability\u003c\/strong\u003e: Designed for systems up to 600V, making it suitable for industrial feeders and motor drives in a range of facilities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance, retrofit, and replacement ready\u003c\/strong\u003e: Ideal for maintenance schedules, retrofits, and replacements where precise specifications are required to maintain electrical safety and system performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical guidance for use:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify fit and ratings before ordering\u003c\/strong\u003e: Use the official part number to confirm compatibility with your panel and electrical system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan for three-phase protection\u003c\/strong\u003e: Ensure your panel and downstream equipment are configured for 3-pole protection at 600V to maintain proper coordination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall following OEM procedures\u003c\/strong\u003e: Adhere to manufacturer instructions and applicable electrical codes for safe, reliable operation.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWho benefits most from this Square D circuit breaker? facilities with heavy three-phase loads, data centers, manufacturing lines, and large motors that require robust protection and easy replacement with an exact spec match. If you’re upgrading an older system or performing a retrofit, this unit helps you maintain consistent electrical performance without surprises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46426283016354,"sku":"LLA36400CU31X","price":132214.0,"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-lla36400cu31x-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}