{"product_id":"square-d-qo350gfi-50a-240v-3-pole-plug-in-circuit-breaker","title":"Square D QO350GFI - 50 A, 240 V, 3-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSquare D QO350GFI\u003c\/strong\u003e is a 50‑amp, 240‑volt, 3‑pole plug‑in molded‑case circuit breaker with built‑in ground fault protection. Designed for dependable branch‑circuit overcurrent and short‑circuit protection in panelboards and load centers, this device delivers safety and speed when it matters most.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eFast plug‑in connection\u003c\/strong\u003e enables quick installation and easy replacement in existing OEM load centers and panelboards, minimizing downtime.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal‑magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection across changing loads and conditions, reducing nuisance trips and safeguarding connected equipment.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGFI\/ground‑fault protection\u003c\/strong\u003e adds an essential layer of safety by detecting ground faults and interrupting power to prevent shock hazards on branch circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e3‑pole, 50A, 240V configuration\u003c\/strong\u003e supports multi‑wire and three‑phase style circuits common in commercial and light‑industrial environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM compatibility\u003c\/strong\u003e designed to work with matching Square D\/QO load centers and panelboards, preserving performance and simplifying stocking.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eIdeal applications\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eResidential panels requiring robust protection for larger 240V circuits and multi‑wire branch circuits.\u003c\/li\u003e \u003cli\u003eCommercial and light‑industrial panelboards that demand reliable 50A protection with fast maintenance cycles.\u003c\/li\u003e \u003cli\u003eRetrofits and replacements where a plug‑in solution minimizes downtime while maintaining panel topology.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical snapshot\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: Square D\u003c\/li\u003e \u003cli\u003ePart number: QO350GFI\u003c\/li\u003e \u003cli\u003eType: Thermal‑magnetic molded case circuit breaker with GFI functionality\u003c\/li\u003e \u003cli\u003eAmperage: 50A\u003c\/li\u003e \u003cli\u003eVoltage: 240V\u003c\/li\u003e \u003cli\u003ePoles: 3\u003c\/li\u003e \u003cli\u003eMounting: Plug‑in\u003c\/li\u003e \u003cli\u003eApplication: Branch‑circuit overcurrent and short‑circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003ePractical guidance for use\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eConfirm panel compatibility with the QO series to ensure seamless plug‑in fit and trip characteristics.\u003c\/li\u003e \u003cli\u003eMatch the breaker rating to the protected circuit’s load to prevent unnecessary trips while ensuring adequate protection.\u003c\/li\u003e \u003cli\u003eFollow electrical codes and standards, keeping a spare QO350GFI on hand for swift replacement during service windows.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWith its combination of rapid installation, reliable thermal‑magnetic protection, and built‑in ground fault interlock, the Square D QO350GFI delivers trustworthy protection for essential circuits in homes, businesses, and light industrial settings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355405373602,"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_0a1a29d0-eff4-4d2a-8af2-6172a7bfcbb4.png?v=1764691872","url":"https:\/\/www.ampstate.com\/products\/square-d-qo350gfi-50a-240v-3-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}