Siemens Q22050CT QT-type quadplex circuit breaker provides four poles in a compact QT frame for residential 120/240 V service. This common-trip unit groups two two-pole circuits into a single plug-on module rated for 20–50 A with a 10 kA interrupt rating at 240 V. Used in load centers to save panel space while protecting two separate branches, the Q22050CT is part of Siemens QT family with standard plug-on mounting.
