{"product_id":"siemens-q2020-twin-20-amp-circuit-breaker-type-qt-tandem","title":"Siemens Q2020 Twin 20-Amp Circuit Breaker — Type QT Tandem, 10 kAIC","description":"\u003cp\u003eThe Siemens Q2020 twin circuit breaker fits two independent 20-amp circuits into a single panel slot, buying back room in a load centre that's out of open positions before it's out of circuits to add. Type QT tandem construction stacks two single-pole 20-amp breakers in one 1-inch footprint, so a kitchen, garage, or shop circuit lands without forcing a subpanel just to make space. A calibrated thermal-magnetic mechanism handles both failure modes on each circuit: it rides out the slow heat of a sustained overload without nuisance tripping, then opens hard and fast on a dead short, with a 10 kAIC interrupting rating on a 120\/240V service. The rejection feature seats it only in panel positions rated for tandem breakers — the physical guard that keeps a load centre inside its listed circuit count, rather than overfilled past what the panel label allows. CSA-certified and UL-listed, sourced through verified Siemens supply — not the refurbished or counterfeit stock that circulates on open marketplaces — it earns two 20-amp circuits from a single slot and asks nothing further of it.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":42513102930014,"sku":"Q2020","price":28.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/0073\/8142\/files\/Q2020.png?v=1772820019","url":"https:\/\/gdbuildingsupply.com\/products\/siemens-q2020-twin-20-amp-circuit-breaker-type-qt-tandem","provider":"Good Day Building Supply Inc.","version":"1.0","type":"link"}