{"product_id":"square-d-q4l3350-350a-240v-3-pole-circuit-breaker","title":"Square D Q4L3350 - 350 A, 240 V, 3-Pole Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003ePowerful, space‑efficient protection for demanding electrical systems—the Square D \u003cstrong\u003eQ4L3350\u003c\/strong\u003e is a 3‑pole molded case circuit breaker rated for \u003cstrong\u003e350A at 240V\u003c\/strong\u003e. Engineered to deliver dependable branch circuit overcurrent and short‑circuit protection in panelboards and loadcenters, this device is built to withstand the rigors of residential, commercial, and light industrial environments.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCompact molded case design\u003c\/strong\u003e saves panel space and simplifies installation in crowded electrical panels.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by rapidly sensing overloads and short circuits for reliable performance over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e350A, 240V, 3‑pole configuration\u003c\/strong\u003e supports high‑current, three‑phase protection for main feeders and heavy branch circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM loadcenter compatibility\u003c\/strong\u003e ensures a smooth, worry‑free fit with matching Square D panelboards and loadcenters.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple sectors\u003c\/strong\u003e ideal for modern homes, commercial spaces, and light industrial installations requiring robust protection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use scenarios\u003c\/h3\u003e\n\u003cp\u003eUse the Q4L3350 as a main or large feeder breaker in compatible panelboards to guard high‑current distribution circuits. It’s well suited for three‑phase motor circuits, large lighting or HVAC feeds, and other demanding loads where precise protection coordination is essential. With its OEM compatibility, you can upgrade or expand existing installations without compromising performance or space in your panel lineup.\u003c\/p\u003e \u003ch3\u003eWhat makes this breaker different\u003c\/h3\u003e\n\u003cp\u003eUnlike generic protective devices, the Square D Q4L3350 combines a compact molded case with a thermal‑magnetic trip, delivering consistent protection across temperature and load conditions. Its three‑pole construction aligns with three‑phase systems, while the 350A rating provides ample headroom for future growth. The design prioritizes panel space efficiency and straightforward replacement within Square D‑barely‑compatible ecosystems, reducing downtime and installation complexity.\u003c\/p\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\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 Q4L3350\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal‑magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmpere rating:\u003c\/strong\u003e 350A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVoltage rating:\u003c\/strong\u003e 240V\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\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355366477986,"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-q4l3350-350-a-240-v-3-pole-circuit-breaker-ampstate-727.webp?v=1788752418","url":"https:\/\/www.ampstate.com\/products\/square-d-q4l3350-350a-240v-3-pole-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}