{"product_id":"square-d-qo2020-20a-120v-1-pole-plug-in-circuit-breaker","title":"Square D QO2020 - 20 A, 120 V, 1-Pole Plug-In Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003ePower your electrical system with confidence using the Square D QO2020 20A, 120V, 1-Pole Plug-In Circuit Breaker. This molded-case breaker is purpose-built for dependable branch circuit protection in panelboards and loadcenters, delivering quick, secure protection where it matters most.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFast, tool-free installation\u003c\/strong\u003e — the plug-in connection design simplifies both installation and replacement, reducing downtime and making service calls smoother for both professionals and seasoned DIY installers.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePredictable, reliable protection\u003c\/strong\u003e — a thermal-magnetic trip unit harmonizes thermal overload sensing with magnetic short-circuit response. The result is stable protection that responds consistently across temperature swings and circuit conditions, preserving wiring and downstream devices.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eOEM‑grade compatibility\u003c\/strong\u003e — built to integrate seamlessly with matching Square D OEM loadcenters and panelboards, ensuring a clean fit, dependable operation, and consistent performance within your existing protection system.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eVersatile, purpose-built for multiple environments\u003c\/strong\u003e — ideal for residential panels, light commercial setups, and select industrial applications where compact, reliable 1-pole protection is needed without adding complexity.\u003c\/p\u003e \u003ch3\u003eTechnical specifications\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 QO2020\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 Plug-in\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\u003eUse cases and ideal applications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eReplacements in existing residential panels that accept QO‑style plug-in breakers, restoring reliable circuit protection without modifying the panel interior.\u003c\/li\u003e \u003cli\u003eSmall to mid-size commercial or light industrial circuits requiring a compact 1-pole, 20A protection device in a panelboard or loadcenter.\u003c\/li\u003e \u003cli\u003eNew installations where a quick, secure plug-in breaker is preferred to minimize downtime during commissioning or upgrades.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhat makes this breaker stand out\u003c\/h3\u003e\n\u003cp\u003eUnlike generic substitutes, the QO2020 is engineered to align precisely with Square D’s QO family, offering predictable trip characteristics and a seamless fit that reduces installation risk. The combination of fast plug-in connectivity and a rugged molded-case design translates to fewer service calls due to loose connections or compatibility issues.\u003c\/p\u003e \u003ch3\u003ePractical tips for best results\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eVerify panel compatibility with QO series breakers before installation to ensure a perfect fit and documented protection alignment.\u003c\/li\u003e \u003cli\u003eWhen replacing an older breaker, inspect the interior bus contacts for wear and ensure the panel’s bus stabs are clean and undamaged to maintain optimal plug-in performance.\u003c\/li\u003e \u003cli\u003eKeep spare QO2020 breakers on hand for quick replacement of any tripped circuit, minimizing downtime on critical circuits such as lighting or critical outlets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355398361250,"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_46b2ab0d-3fdd-4259-b593-3297825911fc.png?v=1764691797","url":"https:\/\/www.ampstate.com\/products\/square-d-qo2020-20a-120v-1-pole-plug-in-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}