PC level and CB level in the dual power automatic transfer switch are the two most commonly used products. There are similarities between the two, and there are also great differences. It also has its own advantages and disadvantages. Therefore, when choosing PC-level and CB-level switches, you can also refer to the advantages and disadvantages of the two for comparison. The following is an introduction to the advantages and disadvantages and differences of the PC-level and CB-level dual power automatic transfer switches.