{"product_id":"square-d-lcl36300-300a-600v-3-pole-circuit-breaker","title":"Square D LCL36300 - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D LCL36300 - 300 A, 600 V, 3-Pole Circuit Breaker from AmpState. This molded case breaker is engineered to deliver dependable branch circuit overcurrent and short-circuit protection inside panelboards and loadcenters, making it a robust choice for demanding electrical distributions.\u003c\/p\u003e \u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eDesigned around a compact molded case, the LCL36300 maximizes panel space while delivering precise protection. Its thermal-magnetic trip unit provides stable, repeatable response to both sustained overloads and rapid transient faults, helping to prevent nuisance tripping while safeguarding wiring and equipment.\u003c\/p\u003e \u003ch2\u003eKey Benefits\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e minimizes footprint inside panelboards and loadcenters, freeing space for additional circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e combines thermal overload sensing with magnetic instantaneous trip for reliable protection against overcurrent and short circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3-pole configuration\u003c\/strong\u003e ensures coordinated protection across all three phases, which is essential for balanced loads and safe operation of 3-phase equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e300 A rating\u003c\/strong\u003e with a \u003cstrong\u003e600 V\u003c\/strong\u003e insulating capacity, tailored for higher-current branch circuits in commercial and light industrial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDirect compatibility\u003c\/strong\u003e with matching OEM loadcenters and panelboards, enabling smooth replacements and straightforward upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatility across environments\u003c\/strong\u003e suitable for residential, commercial, and light industrial applications where reliable circuit protection is critical.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTechnical Details\u003c\/h2\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 LCL36300\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 300 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\u003eApplication:\u003c\/strong\u003e Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eApplications \u0026amp; Compatibility\u003c\/h2\u003e\n\u003cp\u003eThe Square D LCL36300 is purpose-built for protection where space is at a premium and reliability matters. It fits seamlessly into OEM loadcenters and panelboards designed for molded case breakers, making it an excellent upgrade or replacement option for existing 3-pole installations. Its 600 V rating broadens its suitability across commercial panels and certain industrial environments, while the 300 A capacity accommodates larger branch circuits without compromising protection accuracy.\u003c\/p\u003e \u003ch2\u003eUse Cases and Practical Scenarios\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eUpgrading residential or light commercial panels that require a high-current, three-phase protective device for large feeders or equipment racks.\u003c\/li\u003e \u003cli\u003eReplacing aging or incompatible breakers in compatible Square D panelboards to maintain coordinated protection and labeling consistency.\u003c\/li\u003e \u003cli\u003eDistribution panels in small to mid-size facilities where space efficiency and reliable trip performance are critical for uptime.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eTips for Selection and Installation\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eConfirm the panelboard or loadcenter's compatibility with thermal-magnetic molded case breakers and the specific LCL series.\u003c\/li\u003e \u003cli\u003eVerify that the 3-pole configuration matches the existing wiring scheme and that a coordinated protection strategy is in place for all phases.\u003c\/li\u003e \u003cli\u003eWhen replacing an old device, check the mounting and terminal torque requirements per Square D guidelines to ensure a secure connection.\u003c\/li\u003e \u003cli\u003ePlan for future expansion by selecting a breaker that aligns with your expected load growth while keeping a margin above current demand.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith the Square D LCL36300, you’re choosing a trusted, purpose-built solution for reliable overcurrent and short-circuit protection. Its compact form, precise thermal-magnetic trip, and compatibility with OEM loadcenters position it as a practical, long-term upgrade for diverse electrical installations. Available from AmpState for projects that demand dependable, field-proven performance.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355317194914,"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_9604940c-e948-4ead-90cc-c03986ac79b2.png?v=1764691281","url":"https:\/\/www.ampstate.com\/products\/square-d-lcl36300-300a-600v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}