If both switches are in the very same position, the lamp is going to be OFF. Therefore a switch with a single pole, can only influence a single circuit. A double pole switch isn’t tricky to install if you’ve got a basic comprehension of electricity and the way it works.
You’d have to find out what types of wires you have as you’ll want to power the relay. Once removed, you will realize that the tip of each wire connected to the terminal is bare. Earth wires aren’t shown.
Both of the other terminals are often known as Aand B. The usual terminal might be labeled and is normally a different color than the traveler terminals. In any case, it will be distinguished from the travelers in some way.
Switches vary in both the amount of poles and the variety of throws. Choose the diagram that’s most like the scenario you’re in and see if you’re able to wire your switch! If you wish to put in a 3-way light switch, but the job becomes a bit more complicated.
Ideally a switch is the perfect conductor, but realistically it’s got a bit of resistance between both contacts. All the extra switches are internediate types (4 terminals), and connect into the center of the circuit in just the same manner. Momentary switches only continue being active so long as they’re actuated. They don’t always have to be actuated by a pushdown.