{"product_id":"square-d-lx36400g-400a-3-pole-plug-in-circuit-breaker","title":"Square D LX36400G - 400 A, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D \u003cstrong\u003eLX36400G\u003c\/strong\u003e is a \u003cstrong\u003e400 A, 3-pole\u003c\/strong\u003e plug-in molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Its \u003cstrong\u003efast plug-in connection\u003c\/strong\u003e streamlines installation and replacement, reducing downtime when you’re upgrading or servicing electrical distribution.\u003c\/p\u003e \u003cp\u003eWith a \u003cstrong\u003ethermal-magnetic trip unit\u003c\/strong\u003e, this breaker provides stable, repeatable protection against overloads and short circuits. The \u003cstrong\u003e3-pole\u003c\/strong\u003e design ensures simultaneous disconnection of all three phases, which is essential for balanced operation of large motors and multi‑wire branch circuits in three-phase systems. Built to work with \u003cstrong\u003ematching OEM load centers and panelboards\u003c\/strong\u003e, it delivers reliable coordination and electrical compatibility across square D installations.\u003c\/p\u003e \u003cp\u003eIdeal for \u003cstrong\u003eresidential, commercial, and light industrial\u003c\/strong\u003e applications, the LX36400G is a robust choice for service upgrades, retrofit projects, or new builds that demand a high-capacity, plug-in breaker. Use cases include protecting large feeders, supplying heavy machinery, or safeguarding high‑demand circuits in multi‑unit buildings where uptime and safety are paramount.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in connection\u003c\/strong\u003e enables quick installation and easy replacement in compatible panelboards and loadcenters.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip\u003c\/strong\u003e provides reliable overload and short-circuit protection with consistent trip performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e ensures simultaneous disconnection of all phases for safe, coordinated protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e400 A rating\u003c\/strong\u003e supports high-demand branch circuits and large equipment loads.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e construction guarantees proper fit and electrical coordination with Square D panelboards and load centers.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LX36400G\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 400 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 3\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Plug-in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIf you’re upgrading an existing Square D system or outfitting a new installation, the LX36400G 400 A 3-pole plug-in breaker offers rapid, reliable protection with a design and compatibility pedigree you can trust. Pair it with your OEM panelboard for optimal performance, safety, and longevity in your electrical distribution network.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355329876130,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/schnieder_and_square_d_breaker_and_panel_0636b46e-7130-4cfd-b404-1cd07b19842c.png?v=1764691387","url":"https:\/\/www.ampstate.com\/products\/square-d-lx36400g-400a-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}