Electrical switches allow us to control the flow of electricity in many applications, from the lights in your house to heavy equipment on a factory floor.
This article will break down the differences between Single Pole, Double Throw (SPDT) and Double Pole, Double Throw (DPDT) switches. We’ll go over how these switches work, where they’re used, and what advantages they offer.
First, let’s define the terms “pole” and “throw.” The number of poles refers to how many separate circuits a switch controls. The number of throws refers to how many output connections each pole has.