{"product_id":"square-d-qo2401021-miniature-circuit-breaker-40a-2-pole-120-240v-plug-in-ac-shunt-trip-qo-series","title":"Square D QO2401021 Miniature Circuit Breaker – 40A – 2 Pole – 120\/240V – Plug-In – AC Shunt Trip – QO Series","description":"\u003cp\u003eThe Square D QO2401021 is a QO-series plug-in miniature circuit breaker designed for reliable overcurrent protection in QO load centers, NQOD panelboards, and OEM distribution systems. It provides thermal magnetic protection for overload and short-circuit conditions and includes an integrated AC shunt trip feature for remote tripping capability. This breaker is suited for residential, commercial, and light industrial branch circuit applications requiring both protection and remote control functionality.\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: 120\/240 VAC\u003c\/li\u003e\n\u003cli\u003eFrequency: 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003ePhase: 1 Phase\u003c\/li\u003e\n\u003cli\u003ePoles: 2 Pole\u003c\/li\u003e\n\u003cli\u003eInterrupting Rating: 10 kA @ 120\/240 VAC\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\u003c\/li\u003e\n\u003cli\u003eTrip Function: Common Trip (Overload + Short-Circuit Protection)\u003c\/li\u003e\n\u003cli\u003eAdditional Feature: AC Shunt Trip (120\/208\/240 VAC)\u003c\/li\u003e\n\u003cli\u003eProtection Type: Branch circuit protection with remote disconnect capability\u003c\/li\u003e\n\u003cli\u003eApplication: General power distribution, lighting, appliance, and HVAC circuits\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: QO\u003c\/li\u003e\n\u003cli\u003eCatalog Number: QO2401021\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\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 fast panel integration\u003c\/li\u003e\n\u003cli\u003eIntegrated AC shunt trip coil for remote operation\u003c\/li\u003e\n\u003cli\u003eBox lug terminals for secure conductor termination\u003c\/li\u003e\n\u003cli\u003eDesigned for standard branch circuit distribution\u003c\/li\u003e\n\u003cli\u003eSpace-efficient 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 distribution standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThermal magnetic protection for overload and short-circuit faults\u003c\/li\u003e\n\u003cli\u003eIntegrated AC shunt trip for remote disconnect control\u003c\/li\u003e\n\u003cli\u003ePlug-on mounting for QO compatibility\u003c\/li\u003e\n\u003cli\u003eCompact design optimized for panelboard space efficiency\u003c\/li\u003e\n\u003cli\u003eSuitable for residential and light commercial applications\u003c\/li\u003e\n\u003cli\u003eReliable performance in QO and NQOD systems\u003c\/li\u003e\n\u003cli\u003eEnhanced safety and remote control capability in a single device\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Square D","offers":[{"title":"NEW","offer_id":48539835531513,"sku":"QO2401021","price":312.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/7810\/7385\/files\/SchneiderElectric-TelemecaniqueSensors_QO2201021_cab0a2b3-7dab-4ca0-b9a8-80abe01c667d.jpg?v=1781684838","url":"https:\/\/mycircuitbreakers.com\/products\/square-d-qo2401021-miniature-circuit-breaker-40a-2-pole-120-240v-plug-in-ac-shunt-trip-qo-series","provider":"My Circuit Breakers","version":"1.0","type":"link"}