{"product_id":"square-d-qo340gfi-ground-fault-circuit-breaker-40a-3-pole-208y-120vac-plug-on-6ma-gfi-qo-series","title":"Square D QO340GFI Ground Fault Circuit Breaker – 40A – 3 Pole – 208Y\/120VAC – Plug-On – 6mA GFI – QO Series","description":"\u003cp\u003eThe Square D QO340GFI is a QO-series three-pole ground fault circuit interrupter designed for use in 208Y\/120VAC systems. It provides thermal magnetic overcurrent protection combined with 6mA ground fault sensing for enhanced personnel safety. This breaker includes a pigtail neutral and is intended for installation in QO load centers, NQOD panelboards, and OEM distribution equipment. It is commonly used in commercial and industrial environments where ground fault protection is required for three-phase circuits.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eElectrical Ratings\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCurrent Rating: 40 A\u003c\/li\u003e\n\u003cli\u003eVoltage Rating: 208Y\/120 VAC\u003c\/li\u003e\n\u003cli\u003eFrequency: 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003ePhase: 3 Phase\u003c\/li\u003e\n\u003cli\u003ePoles: 3 Pole\u003c\/li\u003e\n\u003cli\u003eInterrupting Rating: 10 kA @ 208Y\/120 VAC\u003c\/li\u003e\n\u003cli\u003eGround Fault Sensitivity: 6 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eProtection and Function\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eTrip Technology: Thermal Magnetic + Ground Fault (GFI\/GFCI)\u003c\/li\u003e\n\u003cli\u003eTrip Function: Common Trip (Overload + Short-Circuit + Ground Fault)\u003c\/li\u003e\n\u003cli\u003eProtection Type: Personnel protection (shock hazard protection)\u003c\/li\u003e\n\u003cli\u003eApplication: Commercial and industrial distribution systems requiring ground fault protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eConfiguration and Function\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSeries: QO Series (Square D \/ Schneider Electric)\u003c\/li\u003e\n\u003cli\u003eModel: QO340GFI\u003c\/li\u003e\n\u003cli\u003eCatalog Number: QO340GFI\u003c\/li\u003e\n\u003cli\u003eFrame Type: QO Miniature Frame\u003c\/li\u003e\n\u003cli\u003eMounting Style: Plug-On\u003c\/li\u003e\n\u003cli\u003eTerminal Type: Box Lug\u003c\/li\u003e\n\u003cli\u003eNeutral Type: Pigtail neutral included\u003c\/li\u003e\n\u003cli\u003eCompatibility: QO Load Centers, NQOD Panelboards, OEM interiors \/ Speed-D switchboards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eMechanical and Physical Characteristics\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCompact molded breaker housing\u003c\/li\u003e\n\u003cli\u003ePlug-on installation for QO system compatibility\u003c\/li\u003e\n\u003cli\u003eIntegrated ground fault detection module (6mA sensitivity)\u003c\/li\u003e\n\u003cli\u003ePigtail neutral lead for sensing circuitry\u003c\/li\u003e\n\u003cli\u003eBox lug terminals for secure conductor termination\u003c\/li\u003e\n\u003cli\u003eWire range: 14–6 AWG copper, 12–4 AWG aluminum\u003c\/li\u003e\n\u003cli\u003eDesigned for three-phase distribution systems\u003c\/li\u003e\n\u003cli\u003eStandard QO-frame construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eStandards and Certifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUL Listed\u003c\/li\u003e\n\u003cli\u003eCSA Certified\u003c\/li\u003e\n\u003cli\u003eManufactured by Schneider Electric \/ Square D\u003c\/li\u003e\n\u003cli\u003eDesigned for North American electrical safety standards\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Square D","offers":[{"title":"NEW","offer_id":48539919155449,"sku":"QO340GFI","price":642.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/QO315GFI-3-Pole-Ground-Fault-Circuit-Breaker_SquareD_1_1232be91-4c89-4abe-9035-1c588b4ad961.webp?v=1781687292","url":"https:\/\/mycircuitbreakers.com\/products\/square-d-qo340gfi-ground-fault-circuit-breaker-40a-3-pole-208y-120vac-plug-on-6ma-gfi-qo-series","provider":"My Circuit Breakers","version":"1.0","type":"link"}