How is the generator connected to my electrical panel?
Once the transfer switch is mounted, wires are run from the switch, fed through an inlet box and then wired directly into the panel. The wires are connected to breakers within the panel. If no empty breakers are available, they will need to be installed.
However, sometimes there isn’t enough available space inside the panel. When this happens, an electrician may be able to combine some of your other circuits to free up space inside the panel. If this isn’t possible, you will either need to have a larger panel installed or move some circuits to a sub-panel.