{"v":"2.0","page_type":"product","title":"Siemens offers a wide array of thermal-magnetic circuit breakers that are the key element for overload and short-circuit protection of your home?s electrical system. To provide additional protection Siemens offers circuit breakers to protect against severe electrical shock or electrocution, mitigate the risk of electrical fires and protect against damaging surges and Voltage spikes. Circuit breakers are intended for switching and protection of your home's wiring from high temperatures caused by excess current higher than the rating of the wire. While thermal-magnetic circuit breakers are the key element for overload and short-circuit protection of your electrical system, there are potentially dangerous conditions that do not involve over current.","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Siemens","href":"/python/html6/menu_brand_products/1000/133000/menu_brand_products_SIEMENS_1_e104ef7ab5.html"},{"label":"Q2020NC","href":null}],"content":{"product":{"mpn":"Q2020NC","manufacturer":"Siemens","brand":"Siemens","brand_url":"/python/html6/menu_brand_products/1000/133000/menu_brand_products_SIEMENS_1_e104ef7ab5.html","title":"Siemens offers a wide array of thermal-magnetic circuit breakers that are the key element for overload and short-circuit protection of your home?s electrical system. To provide additional protection Siemens offers circuit breakers to protect against severe electrical shock or electrocution, mitigate the risk of electrical fires and protect against damaging surges and Voltage spikes. Circuit breakers are intended for switching and protection of your home's wiring from high temperatures caused by excess current higher than the rating of the wire. While thermal-magnetic circuit breakers are the key element for overload and short-circuit protection of your electrical system, there are potentially dangerous conditions that do not involve over current.","description":"","attributes":[{"name":"Brand name","values":[{"value":"Siemens","url":"/python/html6/menu_attr_pair/1000/239000000/239581000/menu_attr_pair_Brandname_Siemens_1_c8cd602499.html"}],"name_url":"/python/html6/menu_attr_pair/1000/239000000/239581000/menu_attr_pair_Brandname_Siemens_1_c8cd602499.html"},{"name":"Manufacturer name","values":[{"value":"Siemens","url":"/python/html6/menu_attr_pair/1000/150000000/150314000/menu_attr_pair_Manufacturername_Siemens_1_d99d74d088.html"}],"name_url":"/python/html6/menu_attr_pair/1000/150000000/150314000/menu_attr_pair_Manufacturername_Siemens_1_d99d74d088.html"},{"name":"Manufacturer","values":[{"value":"Siemens","url":"/python/html6/menu_attr_pair/1000/188000000/188112000/menu_attr_pair_Manufacturer_Siemens_1_d4b935b73b.html"}],"name_url":"/python/html6/menu_attr_pair/1000/188000000/188112000/menu_attr_pair_Manufacturer_Siemens_1_d4b935b73b.html"}],"images":[],"distributors":[{"name":"Home Depot","sku":"100158567","url":"http://www.homedepot.com/p/Siemens-20-Amp-Tandem-Single-Pole-Type-QT-NCL-Circuit-Breaker-Q2020NC/100158567","pricing":[{"quantity":1,"price_usd":22.97}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":null,"image":"http://www.homedepot.com/catalog/productImages/65/03/0313755e-3e6b-45a9-9e9d-bbb77c765fb6_65.jpg"},{"name":"Crescent Electric Supply Co","sku":"Q2020NC","url":"http://www.cesco.com/b2c/product/Siemens-Q2020NC-Circuit-Breaker/132290","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Grainger","sku":"6DNR9","url":"https://www.grainger.com/product/SIEMENS-Plug-In-Circuit-Breaker-6DNR9","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Zoro","sku":"G0510011","url":"https://www.zoro.com/siemens-miniature-circuit-breaker-2020-a-120v-ac-1-pole-plug-in-mounting-style-q-series-q2020nc/i/G0510011/","pricing":[{"quantity":1,"price_usd":29.79}],"stock":{"available":true,"quantity":152,"lead_time_days":0},"moq":1,"multiple":1,"image":"https://www.zoro.com/static/cms/product/full/Z3-CD0fo5oy.JPG"},{"name":"Allied Electronics","sku":"71297184","url":"https://www.alliedelec.com/product/siemens/q2020nc/71297184/","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Component Electronics","sku":"508-576","url":"https://componentonline.com/product/508-576/Q2020NC","pricing":[{"quantity":1,"price_usd":33.85}],"stock":{"available":true,"quantity":3,"lead_time_days":0},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/961ba718-c1ad-487f-9eea-3e8e6d2c0dce"},{"name":"motorsandcontrol.com","sku":"Q2020NC","url":"https://motorsandcontrol.com/siemens-q2020nc-breaker-20-20a-1p-120v-10k-qt-non-ctl/","pricing":[{"quantity":1,"price_usd":70.78}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/27e84ea3-0f09-451a-bbb3-24089c7159c7"},{"name":"PlumbersStock","sku":"591258","url":"https://www.plumbersstock.com/3rd_10923378_CIRCUITBRKR1P1INDPLX2020.html","pricing":[{"quantity":1,"price_usd":33.52}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/46139bdb-8118-49d8-a7cf-e52acac6ee92"},{"name":"Hardware and Tools","sku":"EBGA-8517","url":"https://www.hardwareandtools.com/siemens-q2020nc-20-amp-dual-circuit-breaker-ebga-8517.html","pricing":[{"quantity":1,"price_usd":35.09}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://pdt-images.cdn.hardwareandtools.net/400x350/783643156623.jpg"},{"name":"Butler Supply","sku":"6574","url":"https://www.butlersupply.com/siemens-q2020nc","pricing":[{"quantity":1,"price_usd":145.96}],"stock":{"available":true,"quantity":49,"lead_time_days":0},"moq":1,"multiple":1,"image":"https://www.butlersupply.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/6/5/6574_IDW_IMAGE_d8605abca59fa2182917176af28031827699dbb20bd5c33f0a7be9979f6f2a23.jpg"},{"name":"AmazonTP","sku":"B018A168VU","url":"https://www.amazon.com/dp/B018A168VU","pricing":[{"quantity":1,"price_usd":42.0}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"http://ecx.images-amazon.com/images/I/412aJhbL9oL._SL75_.jpg"},{"name":"AmazonTP","sku":"B00GXF6RI0","url":"https://www.amazon.com/dp/B00GXF6RI0","pricing":[{"quantity":1,"price_usd":234.99}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"http://ecx.images-amazon.com/images/I/41I-IYrd2tL._SL75_.jpg"},{"name":"Life and Home","sku":"41638553","url":"https://www.lifeandhome.com/products/siemens-q2020nc-circuit-breakers-20-amp","pricing":[{"quantity":1,"price_usd":31.47}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"sustainablesupply.com","sku":"C1210066","url":"https://www.sustainablesupply.com/products/siemens-plug-in-circuit-breaker-20a-2p-10ka-240v-q2020nc-c1210066","pricing":[{"quantity":1,"price_usd":27.35}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Widespread","sku":"Q2020NC","url":"https://www.widespreadsales.com/Products/Circuit-Breakers-Siemens/Q2020NC","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.electrical.com/img/Q2020NC-1.jpg"},{"name":"French Gerleman","sku":"SIEQ2020NC","url":"https://www.frenchgerleman.com/816116/Product/Siemens-Q2020NC","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Onlinecomponents.com","sku":"Q2020NC","url":"http://www.onlinecomponents.com/keywordsearch.aspx?text=Q2020NC","pricing":[{"quantity":1,"price_usd":51.37}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://sigma.octopart.com/cdn-cgi/image/width=75,height=75,fit=contain/79444863/image/Siemens-US2%3AQ2020NC.jpg"},{"name":"kirbyrisk.com","sku":"559319","url":"https://www.kirbyrisk.com/products/559319/","pricing":[{"quantity":1,"price_usd":46.74}],"stock":{"available":true,"quantity":85,"lead_time_days":0},"moq":1,"multiple":1},{"name":"standardelectricsupply.com","sku":"230412","url":"https://www.standardelectricsupply.com/Siemens-Q2020NC-Molded-Case-Circuit-Breaker","pricing":[{"quantity":1,"price_usd":63.77}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Hardware and Tools","sku":"ULJB-9526","url":"https://www.hardwareandtools.com/siemens-q2020nc-20a-20a-dplx-breaker-uljb-9526.html","pricing":[{"quantity":1,"price_usd":41.19}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://pdt-images.cdn.hardwareandtools.net/400x350/783643156623.jpg"},{"name":"steinerelectric.com","sku":"27554","url":"https://www.steinerelectric.com/Product/Siemens-Speedfax-Q2020NC-Duplex-Molded-Case-Circuit-Breaker120-VAC20-A10-kA-Interrupt1-Pole-27554","pricing":[{"quantity":1,"price_usd":19.69}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/408e0150-390e-4104-a327-67f11872ca16"},{"name":"superbreakers.com","sku":"Q2020NC","url":"https://superbreakers.com/products/siemens-q2020nc-tandem-circuit-breaker","pricing":[{"quantity":1,"price_usd":24.65}],"stock":{"available":true,"quantity":85,"lead_time_days":0},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/2a428ab3-32ac-4e28-9765-a6f1614b856f"},{"name":"bulbspro.com","sku":"Q2020NC","url":"https://www.bulbspro.com/q2020nc.html","pricing":[{"quantity":1,"price_usd":27.59}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/2efa2381-a3cc-4e66-9a8f-51f1cc767c3a"},{"name":"ferguson.com","sku":"1152950","url":"https://www.ferguson.com/product/siemens-energy-automation-20-amp-2-pole-quad-breaker-sq2020nc/1152950.html","pricing":[{"quantity":1,"price_usd":54.99}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/34ccd8a2-04a8-4387-bdf2-9525b23e34f0"},{"name":"Toolbox Supply","sku":"10887336","url":"https://www.toolboxsupply.com/products/siemens-q2020nc-space-saver-duplex-circuit-breaker-20-20-amp-120v","pricing":[{"quantity":1,"price_usd":35.7}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"suppliesdepot.com","sku":"Q2020NC","url":"https://www.suppliesdepot.com/product/siemens-q2020nc-2020a-twin-circuit-breaker","pricing":[{"quantity":1,"price_usd":42.96}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/3e15314e-d180-4f16-861e-64796c081e25"},{"name":"turtle.com","sku":"ITE Q2020NC","url":"https://www.turtle.com/1023067/Product/siemens-q2020nc","pricing":[{"quantity":1,"price_usd":41.58}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/2400ba22-63f3-4df0-95ad-04f2a56b034b"},{"name":"Kelly Hayes","sku":"Q2020NC","url":"https://www.kellyhayes.com/q2020nc-120-vac-50-60-hz-20-a-10-ka-qt-frame-1-pole-thermal-and-fixed-magnetic-duplex-molded-case-non-current-limiting-circuit-plug-in-circuit-breaker.html","pricing":[{"quantity":1,"price_usd":47.15}],"stock":{"available":true,"quantity":2504,"lead_time_days":0},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/1a1f2e5b-48ef-42f0-af69-0b44843b3f69"},{"name":"galesburgelectric.com","sku":"Q2020NC","url":"https://www.galesburgelectric.com/siemens-q2020nc-qt-20-20a-twin-pole-120-240v-circuit-breaker/","pricing":[{"quantity":1,"price_usd":31.5}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://cdn11.bigcommerce.com/s-vnb0l/products/42229/images/37006/20210208_114956__10780.1612806775.380.500.jpg?c=2"},{"name":"simsupply.com","sku":"ZO-G0510011","url":"https://www.simsupply.com/departments/consumer/electrical/fuses-circuit/siemens-circuit-breaker-20-20a-plug-in-120v-1p-q2020nc-q2020nc-zo-g0510011/","pricing":[{"quantity":1,"price_usd":41.23}],"stock":{"available":true,"quantity":97,"lead_time_days":0},"moq":1,"multiple":1,"image":"https://cdn11.bigcommerce.com/s-x9zrb/products/11618682/images/12493209/zo-g0510011__itemimageurl99__72441.1688056659.386.513.jpg"},{"name":"Guardian","sku":"Q2020NC","url":"https://www.guardiancatalog.com/SIEMENS-Q2020NC-p/q2020nc.htm","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Crescent Electric Supply Co","sku":"2041217","url":"https://www.cesco.com/Siemens-Q2020NC-Siemens-Q2020NC-Circuit-Breaker-1-Single-Pole-20-Amp-1-Single-Pole-20-Amp-120-Volt-AC-2-Pole-Plug-In-Mount/p2041217","pricing":[],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"us.rs-online.com","sku":"71297184","url":"https://us.rs-online.com/product/siemens/q2020nc/71297184/","pricing":[{"quantity":1,"price_usd":272.16}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Zoro","sku":"G007904421","url":"https://www.zoro.com/siemens-industry-20a20a-dplx-breaker-q2020nc/i/G007904421/","pricing":[{"quantity":1,"price_usd":55.74}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.zoro.com/static/cms/product/full/Buy Supply Inc dba Linq USA Corp_bus134071trvxx410c5b.jpeg"},{"name":"Zoro","sku":"G107904420","url":"https://www.zoro.com/siemens-industry-20a20a-dplx-breaker-q2020nc/i/G107904420/","pricing":[{"quantity":1,"price_usd":52.99}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":12,"multiple":12,"image":"https://www.zoro.com/static/cms/product/full/Buy Supply Inc dba Linq USA Corp_bus134071trvxx410c5b.jpeg"},{"name":"Allfuses","sku":"Q2020NC","url":"https://www.allfuses.com/q2020nc","pricing":[{"quantity":1,"price_usd":26.44}],"stock":{"available":true,"quantity":720,"lead_time_days":0},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/b44329c7-7c2d-447e-b3de-da1f2d224170"},{"name":"hardwareandmoreee.com","sku":"134071","url":"https://hardwareandmoreee.com/products/20a-20a-dplx-breaker-134071","pricing":[{"quantity":1,"price_usd":35.25}],"stock":{"available":true,"quantity":44,"lead_time_days":0},"moq":1,"multiple":1,"image":"https://cdn.shopify.com/s/files/1/0284/1719/6163/products/134071_63a3528b-82d8-4c41-882f-df396c600e6e.jpg?v=1651070244"},{"name":"thetoolcabin.com","sku":"B00002NB0M","url":"https://www.thetoolcabin.com/products/siemens-q2020nc-two-20-amp-single-pole-120-volt-non-current-limiting-circuit-breaker","pricing":[{"quantity":1,"price_usd":37.31}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.thetoolcabin.com/cdn/shop/products/31JGe3nal1L.jpg?crop=center&height=500&v=1665399221&width=600"},{"name":"zaynesolutions.com","sku":"6943062","url":"https://www.zaynesolutions.com/siemensq2020nccircuitbreakerduplexminiature20a1pole120240vfixedtrippluginmounting-274426","pricing":[{"quantity":1,"price_usd":37.04}],"stock":{"available":true,"quantity":99,"lead_time_days":0},"moq":1,"multiple":1,"image":"https://www.zaynesolutions.com/image/cache/catalog/products/062/6943062-600x315w.jpg"},{"name":"parisfarmersunion.com","sku":"6943062","url":"https://www.parisfarmersunion.com/CIRCUIT-BRKR-1P-1IN-DPLX-20-20-p/6943062.htm","pricing":[{"quantity":1,"price_usd":42.99}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.dataalchemy.com/python/getu/ca67dac1-6262-4a69-b765-ba116bb2226d"},{"name":"pioneergeneralstore.com","sku":"6943062","url":"https://www.pioneergeneralstore.com/product-p/6943062.htm","pricing":[{"quantity":1,"price_usd":24.23}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.pioneergeneralstore.com/v/vspfiles/photos/6943062-2T.jpg"},{"name":"industrialzone.com","sku":"Q2020NC","url":"https://www.industrialzone.com/344902-siemens-q2020nc.html","pricing":[{"quantity":1,"price_usd":35.77}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":6,"multiple":1,"image":"https://www.industrialzone.com/779880-large_default/siemens-q2020nc.jpg?1692467492"},{"name":"crescentelectric.com","sku":"123291","url":"https://www.crescentelectric.com/power-distribution-and-protection/circuit-breakers-and-accessories/circuit-breakers/low-voltage-residential-circuit-breakers-miniature-thermal-mag-circuit-breakers--duplex-triplex-quadplex-are-circuit-protection-load-center-mains-feeders-and-miniature-circuit-breakers-breaker-2020a-1p-120v-10k-qt-non-ctl","pricing":[{"quantity":1,"price_usd":204.89}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://www.crescentelectric.com/493551/globalassets/catalogs/crescentelectric.com/f/ffb/ffb5a/ffb5a98c-bedf-40b4-a168-951eea1b756/ffb5a98c-bedf-40b4-a168-951eea1b75636/sie-q2020nc-1.jpg?width=1200&height=1200&mode=Pad&bgcolor=fff"},{"name":"Ace Hardware","sku":"3008325","url":"https://www.acehardware.com/departments/lighting-and-electrical/circuit-breakers-fuses-and-panels/circuit-breakers/3008325","pricing":[{"quantity":1,"price_usd":39.99}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1},{"name":"Dale-Electric","sku":"Q2020NC","url":"https://dale-electric.com/products/view/Q2020NC","pricing":[{"quantity":1,"price_usd":49.9}],"stock":{"available":true,"quantity":13,"lead_time_days":0},"moq":1,"multiple":1}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-16","last_updated":"2026-09-16","data_sources":["Ace Hardware","Allfuses","Allied Electronics","AmazonTP","Butler Supply","Component Electronics","Crescent Electric Supply Co","Dale-Electric","French Gerleman","Grainger","Guardian","Hardware and Tools","Home Depot","Kelly Hayes","Life and Home","Onlinecomponents.com","PlumbersStock","Toolbox Supply","Widespread","Zoro","bulbspro.com","crescentelectric.com","ferguson.com","galesburgelectric.com","hardwareandmoreee.com","industrialzone.com","kirbyrisk.com","motorsandcontrol.com","parisfarmersunion.com","pioneergeneralstore.com","simsupply.com","standardelectricsupply.com","steinerelectric.com","superbreakers.com","suppliesdepot.com","sustainablesupply.com","thetoolcabin.com","turtle.com","us.rs-online.com","zaynesolutions.com"],"completeness":0.65,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}