{"product_id":"square-d-qob120afi-circuit-breaker","title":"Square D | QOB120AFI | Circuit Breaker | 20A | 1-Pole | Bolt-On","description":"\u003cdiv\u003e\n\u003cp\u003eThe Square D QOB120AFI Circuit Breaker is a 20-amp, 1-pole bolt-on protection device designed for exact-match replacements in compatible Square D panels. Built for maintenance, retrofit, and replacement projects, this part-reference ensures you’re choosing the right spec when a precise fit matters.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 20A\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 1-Pole\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Bolt-On\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e QOB120AFI\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eApplications:\u003c\/strong\u003e Maintenance, retrofit, and replacement where matching specs are required\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this model stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eExact-fit compatibility:\u003c\/strong\u003e The part number QOB120AFI is your best reference for ensuring compatibility with your Square D panel system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting:\u003c\/strong\u003e The bolt-on design delivers a solid, vibration-resistant connection that remains dependable under panel load conditions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eReliability for critical circuits:\u003c\/strong\u003e Designed to provide consistent overcurrent protection for essential lighting, outlets, and branch circuits in residential or light commercial settings.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eEasy retrofit and replacement:\u003c\/strong\u003e Ideal for scheduled maintenance or panel upgrades where you need to replace a failed breaker with an exact spec.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal use cases\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacing a failed 20A single-pole breaker in compatible Square D panels.\u003c\/li\u003e \u003cli\u003eRetrofit projects where existing equipment requires matching QOB-series specifications.\u003c\/li\u003e \u003cli\u003eStocking spare breakers for quick-downtime repairs in maintenance environments.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eInstallation and compatibility tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAlways \u003cstrong\u003econfirm fit and ratings\u003c\/strong\u003e before ordering. Use the part number QOB120AFI as the primary compatibility reference.\u003c\/li\u003e \u003cli\u003eEnsure the panel is designed for a 1-Pole, 20A bolt-on breaker of the QOB family before installation.\u003c\/li\u003e \u003cli\u003ePower down the service and follow standard electrical safety procedures prior to replacement or retrofit work.\u003c\/li\u003e \u003cli\u003eKeep in mind that bolt-on breakers require proper torque on mounting screws to maintain a secure connection.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eFor dependable, code-compliant overcurrent protection in your Square D panel, the QOB120AFI 20A 1-Pole Bolt-On Circuit Breaker delivers precise compatibility, robust mounting, and reliable performance when it’s time to maintain or upgrade your electrical distribution system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Square D","offers":[{"title":"Default Title","offer_id":46424731353250,"sku":"QOB120AFI","price":310.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/master_generic_a085eff1-75dd-47ee-b131-4c8df8f0489b.png?v=1765492976","url":"https:\/\/www.ampstate.com\/products\/square-d-qob120afi-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}