{"product_id":"square-d-lh36350-350a-600v-3-pole-plug-in-circuit-breaker","title":"Square D LH36350 - 350 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003ePowerful, dependable, and ready for demanding electrical layouts, the Square D LH36350 350A, 600V, 3-Pole Plug-In Molded Case Circuit Breaker is engineered to protect your branch circuits in panelboards and load centers. Its fast plug-in connection means less downtime during installation or replacement, keeping your electrical distribution teams productive.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug-in connection\u003c\/strong\u003e for quick installation and effortless future swaps, minimizing service interruptions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable overcurrent protection, responding to both sustained overloads and short-circuit events.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole design\u003c\/strong\u003e ideal for three-phase systems, delivering synchronized protection across all phases.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e350 A rating\u003c\/strong\u003e supports high-capacity branch circuits common in commercial and light industrial configurations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e600 V rating\u003c\/strong\u003e suitable for a wide range of commercial, industrial, and multi-volt applications.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-in molded case construction\u003c\/strong\u003e with OEM-compatible mounting ensures reliable fitment in matching Square D panels and panelboards.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM panel compatibility\u003c\/strong\u003e—designed to work with matching Square D load centers, ensuring proper coordination and expected protection performance.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical snapshot\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\u003cstrong manufacturer:\u003e Square D\u003c\/strong\u003e\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e LH36350\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 350 A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 600 V\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\u003eApplications:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWho should consider the LH36350?\u003c\/h3\u003e\n\u003cp\u003eThis breaker is particularly well-suited for residential, commercial, and light industrial environments where large, three-phase loads—such as large HVAC equipment, pumps, motors, and distribution feeders—require reliable, modular protection. If you’re updating panelboards or stocking a service van with a capable, high-capacity MCCB that fits standard Square D systems, the LH36350 is a precise match.\u003c\/p\u003e \u003ch3\u003eWhy this solution stands out\u003c\/h3\u003e\n\u003cp\u003eUnlike generic cutoff devices, the LH36350 is built to integrate seamlessly with Square D OEM load centers, preserving system coordination and protection performance. The fast plug-in design reduces installation time and simplifies future maintenance. The combination of a 350 A rating, 600 V capability, and a thermal-magnetic trip mechanism provides robust protection for demanding electrical layouts while keeping replacement and service straightforward for technicians.\u003c\/p\u003e \u003ch3\u003ePractical tips and best-use scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eUse in panelboards where a high-current, three-phase branch circuit needs reliable protection with easy replacement paths.\u003c\/li\u003e \u003cli\u003ePair with compatible Square D load centers to maintain proper trip coordination and panel labeling consistency.\u003c\/li\u003e \u003cli\u003eDuring installation, ensure the plug-in connection seats fully into the bus and verify torque and panel compatibility per manufacturer guidelines.\u003c\/li\u003e \u003cli\u003eFor preventive maintenance, test the breaker’s trip function during routine inspections to confirm predictable performance under fault conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355323519138,"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-lh36350-350-a-600-v-3-pole-plug-in-circuit-breaker-579.webp?v=1788750444","url":"https:\/\/www.ampstate.com\/products\/square-d-lh36350-350a-600v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}