Siemens Q2020USNT Contactor

Siemens Q2020USNT is a Type QT tandem circuit breaker that provides two 20A circuits in a single mounting footprint. Each pole is 20A, delivering two independent circuits within one device, which helps save panel space in installations that require additional branch circuits. Rated for 120/240 VAC operation, this breaker is part of Siemens' QT family and is designed for use in panels and load centers that accept QT tandem breakers. The Q2020 family is commonly described as a duplex/tandem solution in residential and light-commercial panelboards, enabling two circuits to be protected in one slot where the panel design permits it. This model is typically specified when two 20A branches must be fed from one feeder location, such as separate lighting and receptacle circuits or small, dedicated circuits that share a single physical location in the panel. When selecting QT tandem breakers, ensure the panel is listed for tandem use and accepts QT-type breakers to stay within the panel’s listed electrical characteristics.