{"product_id":"square-d-lla36600u44x-600a-3-pole-plug-in-circuit-breaker","title":"Square D LLA36600U44X - 600 A, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eEngineered for reliability in demanding electrical environments, the Square D LLA36600U44X is a 600 A, 3-pole plug-in molded case circuit breaker designed to protect panelboards and load centers from overcurrent and short circuits. This high-capacity unit from Square D offers a fast plug-in connection, enabling quick installation or swift replacement with minimal service downtime.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for rapid installation and effortless changes in service or expansion projects.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection across varying loads, reducing nuisance trips while still reacting quickly to faults.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 A, 3-pole design\u003c\/strong\u003e well-suited for heavy feeder circuits and 3-phase equipment common in commercial and light industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in molded case construction\u003c\/strong\u003e provides sturdy mechanical protection and easy reuse in compatible panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e designed to work with matching Square D load centers and panelboards for a seamless integration.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBroad applications\u003c\/strong\u003e ideal for residential, commercial, and light industrial electrical systems requiring reliable branch circuit protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePractical benefits and real-world use\u003c\/h2\u003e \u003cp\u003eIn retrofit projects or new installations, the LLA36600U44X serves as the main protection for large branch circuits, guarding feeders that power motors, transformers, or subpanels. The 3-pole configuration ensures proper handling of 3-phase systems, while the plug-in form factor minimizes downtime during service or panel upgrades. By combining a robust thermal-magnetic trip with a simple, secure connection, this breaker helps maintenance teams keep critical infrastructure online with less effort.\u003c\/p\u003e \u003ch3\u003eKey specifications at a glance\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Square D\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e LLA36600U44X\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 600 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\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 \u003ch3\u003eWho should consider this breaker?\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eFacilities managers upgrading existing panelboards to support higher demand or expand capacity.\u003c\/li\u003e \u003cli\u003eElectrical contractors performing service replacements in commercial or light industrial environments.\u003c\/li\u003e \u003cli\u003eProperty owners seeking reliable, manufacturer-backed protection for large single feeders and 3-phase circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eDesigned to integrate smoothly with Square D OEM load centers and panelboards, the Square D LLA36600U44X delivers dependable protection with a straightforward installation path. If you’re safeguarding critical electrical infrastructure where downtime costs can add up, this 600 A, 3-pole plug-in breaker offers the robust, scalable performance you need.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355327615138,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-lla36600u44x-600-a-3-pole-plug-in-circuit-breaker-ampstate-392.webp?v=1788750868","url":"https:\/\/www.ampstate.com\/products\/square-d-lla36600u44x-600a-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}