{"product_id":"square-d-qob120cafi-20a-120v-1-pole-bolt-on-circuit-breaker","title":"Square D QOB120CAFI - 20 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QOB120CAFI is a 20A, 120V, 1-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit protection in panelboards and load centers. Built for homes, small businesses, and light industrial applications, it pairs reliability with straightforward installation for advancing electrical safety and system uptime.\u003c\/p\u003e \u003ch3\u003eKey advantages that set the QOB120CAFI apart\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e for a rigid, vibration-resistant bus connection that stays tight even in demanding environments.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e provides stable, repeatable protection by combining long-term overload protection with instantaneous short-circuit response.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e1-pole, 20A, 120V\u003c\/strong\u003e configuration tailored for general lighting, receptacle circuits, and other common branch circuits.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible design\u003c\/strong\u003e ensures seamless compatibility with matching Square D load centers and panelboards for reliable performance and simplified replacements.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e molded case durability\u003c\/strong\u003e delivers robust insulation and long-lasting protection in standard electrical panels used across residential, commercial, and light industrial settings.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhether you’re upgrading an aging panel, adding a new branch circuit, or replacing a faulty breaker, the QOB120CAFI from Square D offers a precise, maintenance-friendly solution. Its bolt-on style means a solid mechanical connection, minimizing wear and movement that could compromise protection over time. The integrated thermal-magnetic trip unit helps prevent nuisance trips while staying sensitive to true faults, so you get reliable protection when it matters most.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e include:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eUpgrading residential panels in homes and apartments to improve safety and code compliance\u003c\/li\u003e \u003cli\u003eAdding dedicated circuits for lighting, outlets, or small appliances in light commercial spaces\u003c\/li\u003e \u003cli\u003eReplacing failed breakers in compatible Square D panelboards to restore protection quickly\u003c\/li\u003e \u003cli\u003eSituations where a robust, bolt-on connection is preferred for reduced vibration and secure bus contact\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eTechnical specifications\u003c\/strong\u003e (as a quick reference):\u003c\/p\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 QOB120CAFI\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 120V\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eNumber of Poles:\u003c\/strong\u003e 1\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 \u003cp\u003eChoosing the Square D QOB120CAFI means selecting a dependable, OEM-compatible solution that helps you protect circuits with precision and ease. If you’re planning panel maintenance or a circuit expansion, this 20A, 120V, 1-pole bolt-on breaker from AmpState is engineered to deliver consistent protection, straightforward installation, and long-term reliability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355406848162,"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_43bc3f87-b8d9-408b-ae0d-47b2b420216c.png?v=1764691894","url":"https:\/\/www.ampstate.com\/products\/square-d-qob120cafi-20a-120v-1-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}