{"title":"Tandem Circuit Breakers","description":"\u003cp\u003eA tandem breaker puts two single-pole breakers in the space of one, so a full panel can take another circuit, but only in panels and spaces listed for tandems. We carry Square D QO tandems, Siemens Type QT and tandem AFCI breakers, and Eaton tandems.\u003c\/p\u003e\u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eTandem breaker guide\u003c\/strong\u003e\u003c\/summary\u003e\u003ch3\u003eWill a tandem fit my panel?\u003c\/h3\u003e\n\u003cp\u003eCheck the label inside your panel door. It shows whether tandems are allowed and in which spaces. Most modern tandems are Class CTL breakers, built to fit only those spaces. Like any breaker, a tandem must also match your panel's brand and type.\u003c\/p\u003e\n\u003ch3\u003eTandem, double-pole or quad?\u003c\/h3\u003e\n\u003cp\u003eA tandem gives two separate 120 volt circuits in one space. A double-pole breaker gives one 240 volt circuit across two spaces. A quad puts two double-pole breakers in one unit: see our \u003ca href=\"\/collections\/quad\"\u003equad breakers\u003c\/a\u003e. More in \u003ca href=\"\/blogs\/news\/what-is-a-tandem-breaker-tandem-vs-double-pole-vs-quad\"\u003ewhat is a tandem breaker\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eAFCI tandems\u003c\/h3\u003e\n\u003cp\u003eThe Siemens Q1515AFC and Q2020AFC put two combination AFCI circuits in one space; the N versions are plug-on neutral.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eBreakers are installed inside a live electrical panel. Have a licensed electrician do the work.\u003c\/p\u003e\u003c\/details\u003e","products":[{"product_id":"siemens-q1520","title":"Siemens QT Q1520 15\/20 Amp Tandem 120\/240V Circuit Breaker","description":"\u003cp\u003eThe Siemens QP Q1520 is a Type QT tandem circuit breaker: two single-pole breakers, 15 amp and 20 amp, in one space, rated 120\/240V, for Siemens load centers that accept tandem breakers.\u003c\/p\u003e\n\u003cp\u003eThermal magnetic trip provides reliable protection against overloads and short circuits. Plug-in design installs directly into compatible Siemens load centers with no tools required. Suitable for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eAmperage: 15A \/ 20A\u003cbr\u003e\nVoltage: 120\/240V\u003cbr\u003e\nPoles: 2 single-pole (tandem)\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part, not aftermarket. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":58279975583825,"sku":null,"price":19.99,"currency_code":"USD","in_stock":false},{"title":"Used","offer_id":59605859172433,"sku":null,"price":16.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/Screenshot2026-04-29at19-56-05Siemens15_20AmpTandemSingle-PoleTypeQTCircuitBreakerQ1520U-TheHomeDepot.png?v=1777517790"},{"product_id":"square-d-qo1515","title":"Square D QO QO1515 15\/15 Amp Tandem 120\/240V Circuit Breaker","description":"\u003cp\u003eThe Square D QO QO1515 is a QO tandem circuit breaker: two 15-amp single-pole breakers in one space, rated 120\/240V AC and 10kA, for Square D QO load centers that accept tandem breakers.\u003c\/p\u003e\n\u003cp\u003eThermal magnetic trip provides reliable protection against overloads and short circuits. Plug-in design installs directly into compatible Square D load centers with no tools required. Suitable for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eAmperage: 15A \/ 15A\u003cbr\u003e\nVoltage: 120\/240V\u003cbr\u003e\nPoles: 2 single-pole (tandem)\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part, not aftermarket. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"Square D","offers":[{"title":"New","offer_id":58279977484369,"sku":null,"price":36.99,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":59605859008593,"sku":null,"price":31.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/qo1515_fr.webp?v=1777057699"},{"product_id":"siemens-q2020afc","title":"Siemens QP Q2020AFC 20\/20 Amp Tandem 120V Combination AFCI Circuit Breaker","description":"\u003cp\u003eThe Siemens QP Q2020AFC is a 20\/20-amp tandem (two 20-amp circuits in one space, no common trip) 120V combination AFCI circuit breaker for Siemens QP series load centers that accept tandem breakers.\u003c\/p\u003e\n\u003cp\u003eThermal magnetic trip provides reliable protection against overloads and short circuits. Plug-in design installs directly into compatible Siemens load centers with no tools required. Suitable for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eAmperage: 20A \/ 20A\u003cbr\u003e\nVoltage: 120V\u003cbr\u003e\nPoles: 2 (tandem)\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part, not aftermarket. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":58473981575249,"sku":null,"price":87.99,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":59605855436881,"sku":null,"price":74.79,"currency_code":"USD","in_stock":false},{"title":"New No Box","offer_id":62948442472529,"sku":"Q2020AFC-NEWNOBOX","price":68.75,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/Q2020AFC.jpg?v=1765411817"},{"product_id":"siemens-q2020afcn","title":"Siemens QP Q2020AFCN 20\/20 Amp Tandem 120V Plug-On Neutral Combination AFCI Circuit Breaker","description":"\u003cp\u003eThe Siemens QP Q2020AFCN is a 20\/20-amp tandem (two 20-amp circuits in one space, no common trip) 120V plug-on neutral combination AFCI circuit breaker for Siemens plug-on neutral load centers that accept tandem breakers.\u003c\/p\u003e\n\u003cp\u003eThermal magnetic trip provides reliable protection against overloads and short circuits. Plug-in design installs directly into compatible Siemens load centers with no tools required. Suitable for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eAmperage: 20A \/ 20A\u003cbr\u003e\nVoltage: 120V\u003cbr\u003e\nPoles: 2 (tandem)\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part, not aftermarket. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":58473989636177,"sku":null,"price":87.99,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":59605855371345,"sku":null,"price":74.79,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/Q2020AFCN.jpg?v=1765412083"},{"product_id":"square-d-qo1520","title":"Square D QO QO1520 15\/20 Amp Tandem 120\/240V Circuit Breaker","description":"\u003cp\u003eThe Square D QO QO1520 is a QO tandem circuit breaker: a 15-amp and a 20-amp single-pole breaker in one space, rated 120\/240V AC and 10kA, for Square D QO load centers that accept tandem breakers.\u003c\/p\u003e\n\u003cp\u003eThermal magnetic trip provides reliable protection against overloads and short circuits. Plug-in design installs directly into compatible Square D load centers with no tools required. Suitable for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eAmperage: 15A \/ 20A\u003cbr\u003e\nVoltage: 120\/240V\u003cbr\u003e\nPoles: 2 single-pole (tandem)\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part, not aftermarket. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"Square D","offers":[{"title":"New","offer_id":58474014015569,"sku":null,"price":54.99,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":59605855240273,"sku":null,"price":46.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/QO1520.jpg?v=1765412893"},{"product_id":"siemens-q1515afc","title":"Siemens QP Q1515AFC 15\/15 Amp Tandem 120V Combination AFCI Circuit Breaker","description":"\u003cp\u003eThe Siemens QP Q1515AFC is a 15\/15-amp tandem (two 15-amp circuits in one space, no common trip) 120V combination AFCI circuit breaker for Siemens load centers that accept tandem breakers.\u003c\/p\u003e\n\u003cp\u003eThermal magnetic trip provides reliable protection against overloads and short circuits. Plug-in design installs directly into compatible Siemens load centers with no tools required. Suitable for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eAmperage: 15A \/ 15A\u003cbr\u003e\nVoltage: 120V\u003cbr\u003e\nPoles: 2 (tandem)\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part, not aftermarket. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":58474034266193,"sku":null,"price":87.99,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":59605855174737,"sku":null,"price":74.79,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/Q1515AFC.jpg?v=1765413298"},{"product_id":"siemens-q1515afcn","title":"Siemens QP Q1515AFCN 15\/15 Amp Tandem 120V Plug-On Neutral Combination AFCI Circuit Breaker","description":"\u003cp\u003eThe Siemens QP Q1515AFCN is a 15\/15-amp tandem (two 15-amp circuits in one space, no common trip) 120V plug-on neutral combination AFCI circuit breaker for Siemens load centers that accept tandem breakers.\u003c\/p\u003e\n\u003cp\u003eThermal magnetic trip provides reliable protection against overloads and short circuits. Plug-in design installs directly into compatible Siemens load centers with no tools required. Suitable for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eAmperage: 15A \/ 15A\u003cbr\u003e\nVoltage: 120V\u003cbr\u003e\nPoles: 2 (tandem)\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part, not aftermarket. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"New","offer_id":58474053304401,"sku":null,"price":87.99,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":59605855141969,"sku":null,"price":74.79,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/Q1515AFCN.jpg?v=1765413528"},{"product_id":"siemens-qp-q1515-15a-single-pole-120v-circuit-breaker","title":"Siemens QT Q1515 15\/15 Amp Tandem 120\/240V Circuit Breaker","description":"\u003cp\u003eThe Siemens QP Q1515 is a Type QT tandem circuit breaker: two 15-amp single-pole breakers in one space, rated 120\/240V, for Siemens load centers that accept tandem breakers.\u003c\/p\u003e\n\u003cp\u003eThermal magnetic trip provides reliable protection against overloads and short circuits. Plug-in design installs directly into compatible Siemens load centers with no tools required. Suitable for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eAmperage: 15A \/ 15A\u003cbr\u003e\nVoltage: 120\/240V\u003cbr\u003e\nPoles: 2 single-pole (tandem)\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part, not aftermarket. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"FLARETEK","offers":[{"title":"New","offer_id":59605758345297,"sku":null,"price":17.0,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":59605758378065,"sku":null,"price":14.45,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/q1515_c97ced88-11a2-4ffc-84a2-fe38c6d21d73.jpg?v=1776362438"},{"product_id":"eaton-cutler-hammer-dnba1515-tandem-1-pole-15a-120-240v-type-brd-circuit-breaker","title":"Eaton Cutler-Hammer DNBA1515 Tandem 1 Pole 15 Amp 120\/240V Type BRD Circuit Breaker","description":"\u003cp\u003eThe Eaton Cutler-Hammer DNBA1515 is a tandem (twin) circuit breaker that fits in a single breaker slot while providing protection for two circuits, designed for Eaton BRD type load centers.\u003c\/p\u003e\n\u003cp\u003eTandem breakers are used when a panel is full and additional circuit space is needed without replacing the entire load center. Verify your panel accepts tandem breakers before ordering, as not all panels support them.\u003c\/p\u003e\n\u003cp\u003eAmperage: 15A\u003cbr\u003e\nVoltage: 120\/240V\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"FLARETEK","offers":[{"title":"New","offer_id":59605745107025,"sku":null,"price":64.99,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":59605745139793,"sku":null,"price":55.24,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/71B4QaqI-BL._SL1500.jpg?v=1777053472"},{"product_id":"square-d-qo-qo1515-515a-single-pole-120v-circuit-breaker-10-pack","title":"Square D QO QO1515 15\/15 Amp Tandem 120\/240V Circuit Breaker (10 Pack)","description":"\u003cp\u003eThe Square D QO QO1515 is a QO tandem circuit breaker: two 15-amp single-pole breakers in one space, rated 120\/240V AC and 10kA, for Square D QO load centers that accept tandem breakers.\u003c\/p\u003e\n\u003cp\u003eThermal magnetic trip provides reliable protection against overloads and short circuits. Plug-in design installs directly into compatible Square D load centers with no tools required. Suitable for residential and light commercial applications.\u003c\/p\u003e\n\u003cp\u003eAmperage: 15A \/ 15A\u003cbr\u003e\nVoltage: 120\/240V\u003cbr\u003e\nPoles: 2 single-pole (tandem)\u003cbr\u003e\nInterrupt Rating: 10 kAIC\u003cbr\u003e\nUL Listed: Yes\u003c\/p\u003e\n\u003cp\u003eGenuine OEM part, not aftermarket. In stock and ships same day on orders placed before 4 PM PST.\u003c\/p\u003e","brand":"FLARETEK","offers":[{"title":"New","offer_id":59605743730769,"sku":null,"price":479.99,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":59605743763537,"sku":null,"price":407.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3819\/4001\/files\/Untitleddesign_11.png?v=1777058270"}],"url":"https:\/\/flaretekco.com\/collections\/tandem-breakers.oembed","provider":"FLARETEK","version":"1.0","type":"link"}