Wiring diagram for a pass-through switch
Let's talk about how a pass-through switch wiring diagram works. The key element in this circuit is the switch itself. This isn't a simple switch, but a switch that can reverse the phase direction of two wires. If more than two on/off points are needed, a crossover switch comes in handy. It's built into the middle of the pass-through switch wiring diagram. There can be as many crossover switches as you like, and they are connected according to the principle of the first switch, but the main thing is that the pass-through switches are the outermost in the chain.