{"product_id":"square-d-q4l3300-300a-240v-3-pole-circuit-breaker","title":"Square D Q4L3300 - 300 A, 240 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D Q4L3300 is a 300A, 240V, 3-pole molded case circuit breaker engineered for reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed to integrate seamlessly with matching OEM Square D panels, this breaker delivers dependable protection for demanding electrical systems in residential, commercial, and light industrial settings.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e maximizes panel space and simplifies layouts for cleaner, more efficient installations.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection across varying loads and temperatures, reducing nuisance trips while safeguarding equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole configuration\u003c\/strong\u003e delivers balanced protection for 3-phase systems, ensuring synchronized fault clearing and system integrity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e specifically engineered to fit Square D load centers and panelboards that accept Q4L breakers, simplifying replacement and upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile, suitable for multiple sectors\u003c\/strong\u003e ideal for residential, commercial, and light industrial applications where high-current protection is essential.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart Number: Q4L3300\u003c\/li\u003e \u003cli\u003eType: Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003eAmperage Rating: 300 A\u003c\/li\u003e \u003cli\u003eVoltage Rating: 240 V\u003c\/li\u003e \u003cli\u003eNumber of Poles: 3\u003c\/li\u003e \u003cli\u003eApplication: Branch circuit overcurrent and short-circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eUse cases and practical considerations\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eInstall as primary protection for high-current branch circuits in commercial panelboards and load centers that require robust 300A protection.\u003c\/li\u003e \u003cli\u003eIdeal replacement part for compatible Square D Q4L series setups, helping maintain system continuity and orderly panel organization.\u003c\/li\u003e \u003cli\u003eSuitable for large living spaces with heavy electrical demand, small office suites, retail fixtures, HVAC feeders, and light industrial equipment where dependable trip performance matters.\u003c\/li\u003e \u003cli\u003eWhen planning upgrades, pair this 3-pole breaker with matching OEM panels to ensure electrical compatibility and streamlined serviceability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor professionals sourcing reliable, code-compliant protection, the Square D Q4L3300 from AmpState combines space efficiency, precise protection, and industry-standard compatibility. It’s a practical choice for projects that demand trustworthy performance from a trusted brand in electrical distribution.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355366412450,"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_f8e3853a-ba77-4499-8d8c-84f9ef8d28c2.png?v=1764691553","url":"https:\/\/www.ampstate.com\/products\/square-d-q4l3300-300a-240v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}