What is the Class CTL Piggy back QOT Breaker? Are they available?
QOT Tandem Circuit Breakers
The term "piggyback" breaker is sometimes used as a reference to our older design of the tandem breakers, which had the handles above and below each other (see "old style" in picture below). In the 1980's, the breakers were redesigned, and since then have been manufactured with handles side by side (see "current style" in the picture below). The catalog numbers of the current style are QOT1515, QOT1520, and QOT2020 (same as the old style catalog numbers). The current style QOT will physically fit in the same place as the old style QOT.