Square D by Schneider Electric QOT1520 QO 1-15-Amp 1-20-Amp Single-Pole Tandem Circuit Breaker QO 2-15 Amp one-pole and 20 Amp one-pole Tandem circuit breaker Plug-on design, easy to install Compatible with QO load centers, CSED's and NQOD panel boards 120/240 VAC NOTE: This breaker is only compatible with QO CTL (certified tandem listing) load centers. To determine compatibility, please refer to CTL Load Centers bulletin Rated for 10,000 AIR