{"product_id":"square-d-li36450-450a-3-pole-plug-in-circuit-breaker","title":"Square D LI36450 - 450 A, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eIntroducing the Square D LI36450, a robust 450A, 3-pole plug-in molded case circuit breaker designed to safeguard your most important electrical loads. Built for dependable branch circuit overcurrent and short-circuit protection, it thrives in panelboards and load centers across residential, commercial, and light industrial settings.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e: Enjoy quick installation and effortless replacement, minimizing downtime during maintenance or panel upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e: Delivers stable, repeatable protection by balancing thermal response to gradual overcurrents with instantaneous magnetic action for short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e: Precisely matched to the corresponding Square D load centers and panelboards for reliable fit and seamless electrical performance.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFocused protection\u003c\/strong\u003e: Specifically engineered for branch circuit overcurrent and short-circuit protection, helping maintain system reliability in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in mounting\u003c\/strong\u003e: A streamlined, service-friendly mounting style that supports rapid maintenance and easy succession in panel assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and ideal applications\u003c\/h3\u003e\n\u003cp\u003e Perfect for upgrading or expanding panel systems in residential service panels, retail spaces, small offices, and light industrial facilities. When you need a high-amperage, three-pole solution that slots into existing OEM setups without custom adapters, the LI36450 provides a straightforward, reliable path to protecting feeders and heavy-load circuits. It’s especially valuable in panelboard retrofits where downtime matters and compatibility with current gear is essential.\u003c\/p\u003e \u003ch3\u003eCompatibility and installation considerations\u003c\/h3\u003e\n\u003cp\u003eDesigned to pair with matching Square D OEM load centers and panelboards, this plug-in breaker helps maintain code-compliant protection and predictable performance. For best results, confirm panel compatibility with the LI36450’s part number and ensure the installation is performed by a qualified electrician. The plug-in design simplifies swaps and upgrades, reducing installation time compared with more complex mounting options.\u003c\/p\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: LI36450\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 450 A\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eMounting Style: Plug-in\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen selecting a high-capacity, plug-in protection solution for panelboards and load centers, the Square D LI36450 offers a precise blend of rapid installation, reliable trip performance, and OEM-fit compatibility. Trust AmpState to provide authentic Square D components designed to keep your electrical systems protected and running smoothly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355324534946,"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_f494aada-7a30-4464-8932-e6ba7f67d550.png?v=1764691333","url":"https:\/\/www.ampstate.com\/products\/square-d-li36450-450a-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}