How do three-way and four-way switches work?

594 views

I am working as an electrician’s assistant, and I’m having a hard time conceptualizing how three- and four-way switches work. Why are they called three-way or four-way, and how does this affect their function? I just need someone to dumb it down for me!

In: Engineering

4 Answers

Anonymous 0 Comments

These are easiest explained with a pole diagram.

Trying to keep it clear:

A three way switches a common contact on the left between two out contacts right (single pole, double throw).

A four way switches two contacts on the left between opposite contacts on the right (double pole, double throw).

How you interconnect them depends on what you want to do.

https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcQbOZRlDRPzIiGwwLi3Rwo5IFVtd7dLeEAo0w&usqp=CAU

You are viewing 1 out of 4 answers, click here to view all answers.