Locate the Common Terminal

What happens here

On a typical 3-way switch, there is a designated terminal for the incoming 'hot' wire. This terminal is often called the 'common' terminal. It is usually distinguished from the other terminals (travelers) by having a different color screw, commonly black, while the traveler terminals are brass or silver. The 'hot' wire from the power source (line) must connect to this common terminal. Understanding this common connection point is key for correct wiring and troubleshooting, as it's the entry point for power to be distributed through the switch.

Goal: Identify the common terminal on a 3-way switch where the hot wire connects