The Siemens Q24020CT2 Circuit Breaker can be used with Siemens panels that allow CTL type QT breakers. It offers thermal magnetic protection and prevents the electrical wiring from overload currents and short circuits. This plug-in type circuit breaker is easy to install. It is 2 in. wide and consists of two 2-pole breakers. One of the 2-pole circuit breaker has current rating of 40 Amp and the other one has a current rating of 20 Amp. The compactly designed circuit breaker has a space-saving design that allows 2 poles to fit in a 1 in. panel space. It is UL listed and has received CSA certification ensuring reliable protection from faults. The Q24020CT2 has voltage and interrupting ratings of 120/240 VAC and 10 kAIC.