{"product_id":"square-d-li36400-circuit-breaker","title":"Square D | LI36400 | Circuit Breaker | 400A | 3-Pole | 600V","description":"\u003cdiv\u003e\n\u003cp\u003eSquare D LI36400 Circuit Breaker is a rugged protection solution engineered for demanding electrical systems. With a 400A rating, 3-pole configuration, and a 600V operating envelope, this device is built to safeguard large motors, feeders, and three‑phase loads in industrial and commercial panels. Identified by the part number LI36400, it’s the precise choice for installations that require exact specification matching.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e LI36400\u003c\/li\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 \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 600V\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eThis breaker is purpose-built for maintenance, retrofit, and replacement projects where you must align with existing specifications. The 3‑pole design supports three‑phase electrical systems, delivering reliable protection for high‑demand equipment and complex power distribution layouts. Its 600V rating makes it suitable for a broad range of industrial applications, where robust fault isolation and quick interruption are essential for uptime and safety.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eWho benefits most\u003c\/strong\u003e from the LI36400:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eFacilities upgrading or expanding three-phase motor control centers and feeders\u003c\/li\u003e \u003cli\u003eMaintenance teams performing panel refurbishments or component replacements\u003c\/li\u003e \u003cli\u003eEngineers specifying exact Square D compatibility to ensure seamless integration\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eKey considerations for ordering\u003c\/strong\u003e:\n\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAlways confirm fit and ratings before purchasing. The part number LI36400 is the best reference for compatibility with your panel and existing protection scheme.\u003c\/li\u003e \u003cli\u003eUse in applications where a high-current, three‑pole, 600V circuit breaker is required to reliably interrupt and protect heavy loads.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIn practice, this LI36400 breaker helps you maintain electrical safety and system availability during installations and upgrades, reducing downtime and ensuring your protection scheme remains consistent with your panel’s original design.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46425624871074,"sku":"LI36400","price":310.0,"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-li36400-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}