On A 3-way, there’s an extra terminal, known as the “common.” Power comes in towards the switch to the frequent, then two “traveler” wires link the initial switch to the second over the brass terminals. Such as, the BS 1363 plug is Utilized in the uk, while the Schuko plug https://smart-switches-australia06987.like-blogs.com/34581671/the-best-side-of-safe-electrical-wiring