{"product_id":"square-d-qob320gfi-20a-240v-3-pole-bolt-on-circuit-breaker","title":"Square D QOB320GFI - 20 A, 240 V, 3-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QOB320GFI is a dependable 20A, 240V, 3-pole bolt-on molded case circuit breaker designed to safeguard your electrical system from overcurrent and short circuits. Engineered for use in panelboards and load centers, it delivers stable, repeatable protection across a range of commercial, residential, and light industrial applications.\u003c\/p\u003e \u003ch3\u003eWhy this breaker stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection for lasting reliability in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e ensures fast, predictable response to both sustained overloads and short circuits, minimizing nuisance trips while protecting downstream circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThree-pole, 240V configuration\u003c\/strong\u003e suited for 3-phase systems or 240V branch circuits, expanding compatibility with modern panelboards and industrial setups.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e20A rating\u003c\/strong\u003e offers flexible protection for lighting, receptacles, small machinery, and other common loads without unnecessary voltage drop or tripping.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-ready compatibility\u003c\/strong\u003e designed to integrate with matching Square D panelboards and load centers, streamlining installation and future upgrades.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile for multiple sectors\u003c\/strong\u003e ideal for residential upgrades, small commercial installations, and light industrial applications where reliable protection matters.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cp\u003eUse the QOB320GFI to protect branch circuits within Square D panelboards and load centers that require a 3-pole, 240V solution. It’s well-suited for equipment and circuits in homes, small offices, retail spaces, and light manufacturing environments where stable overcurrent protection and robust mounting are priorities.\u003c\/p\u003e \u003ch3\u003eTechnical snapshot\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 QOB320GFI\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Thermal-magnetic molded case circuit breaker\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage rating:\u003c\/strong\u003e 20A\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\u003eMounting style:\u003c\/strong\u003e Bolt-on\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 \u003ch3\u003ePractical guidance for installation and use\u003c\/h3\u003e\n\u003cp\u003eChoose this breaker when your panelboard specifies a bolt-on, 3-pole 240V solution with reliable thermal-magnetic protection. Ensure compatibility with your OEM load center and follow the manufacturer’s installation instructions for mounting and wiring. The bolt-on design simplifies a secure connection, while the trip unit provides predictable performance across varying loads and temperatures.\u003c\/p\u003e \u003ch3\u003eWhat problems it helps solve\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003ePrevents damage from overcurrent conditions on 240V circuits, reducing the risk of overheating and fire hazards.\u003c\/li\u003e \u003cli\u003eProvides dependable short-circuit protection to safeguard downstream devices and wiring.\u003c\/li\u003e \u003cli\u003eDelivers consistent protection in environments with vibration or equipment-start surges, thanks to its rigid bolt-on bus connection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor professionals seeking a reliable, OEM-compatible 3-pole 240V solution with solid mounting and proven protection, the Square D QOB320GFI stands out as a thoughtful, long-lasting choice that aligns with real-world wiring needs and panelboard design.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355417039010,"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_5046cbcf-e97e-4ac5-85b8-4f1423dfb7b7.png?v=1764691977","url":"https:\/\/www.ampstate.com\/products\/square-d-qob320gfi-20a-240v-3-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}