{"product_id":"siemens-qa120afcwg-20a-1p-120v-circuit-breaker","title":"Siemens QA120AFCWG 20A 1P 120V Circuit Breaker, AFCI, Combination AFCI, Plug-On | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eSiemens QA120AFCWG\u003c\/strong\u003e is a 20 Amp, 1‑pole, 120V AFCI circuit breaker designed for dependable circuit protection in panelboards, load centers, and electrical distribution systems. This combination AFCI with Plug-On design offers robust arc-fault protection while simplifying installation and spare stocking, making it ideal for replacement projects and keeping your bill of materials (BOM) aligned to the original part number.\u003c\/p\u003e \u003cp\u003eWhy this AFCI breaker stands out:\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eCombination AFCI protection\u003c\/strong\u003e detects both parallel and series arc faults, delivering enhanced safety for living spaces, kitchens, bedrooms, and outlets where arc faults are most likely to occur.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePlug-On convenience\u003c\/strong\u003e enables straightforward swaps in compatible Siemens panels, reducing installation time and minimizing wiring complexity.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSiemens QA compatibility\u003c\/strong\u003e aligns with the QA family’s fit and performance, helping maintain consistent trip characteristics and reliable operation within your existing electrical system.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eStocking and BOM alignment\u003c\/strong\u003e—an excellent choice for replacements and service parts when you need to keep the BOM consistent with the original part number.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eAvailability\u003c\/strong\u003e from AmpState, with support to confirm fit and compatibility for your panel and project needs.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eAmperage: \u003cstrong\u003e20 A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePoles: \u003cstrong\u003e1-Pole\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage: \u003cstrong\u003e120V\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eType: \u003cstrong\u003eAFCI (Combination AFCI)\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eProduct Type: \u003cstrong\u003eCircuit Breaker\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePart Number: \u003cstrong\u003eQA120AFCWG\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eIdeal use cases\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eReplacement installations where the original BOM specifies QA120AFCWG\u003c\/li\u003e \u003cli\u003eResidential panel upgrades or service panel maintenance needing AFCI protection\u003c\/li\u003e \u003cli\u003eNew construction projects that require reliable 1‑pole AFCI protection for individual circuits\u003c\/li\u003e \u003cli\u003eSpare inventory for electricians and contractors to minimize downtime on service calls\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eInstallation and care tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003ePower down the service and verify the panel is suitable for 1‑pole, 120V AFCI operation before replacing the breaker.\u003c\/li\u003e \u003cli\u003eEnsure the panel accepts QA‑series breakers and that the slot and wiring configuration match the Plug-On design.\u003c\/li\u003e \u003cli\u003eFollow local electrical codes and manufacturer instructions during installation. If in doubt, consult a licensed electrician.\u003c\/li\u003e \u003cli\u003eKeep a genuine spare on hand to preserve BOM integrity and simplify future replacements.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eNeed help confirming compatibility?\u003c\/strong\u003e Message AmpState and we’ll assist you in verifying fit for your specific panel or project, ensuring you choose the exact part that aligns with your original equipment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AmpState","offers":[{"title":"Default Title","offer_id":46411097211042,"sku":"QA120AFCWG","price":217.0,"currency_code":"CAD","in_stock":true}],"url":"https:\/\/www.ampstate.com\/products\/siemens-qa120afcwg-20a-1p-120v-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}