Switch to open or close two isolated circuits

[Steve_Fellman]

Hi,
Welcome to the Digikey tech forum. A DPST switch should do the trick for what you’re trying to achieve. Check to be sure the wires from each circuit are connected to the proper terminals. Here is a link that may also give some insight.

Switch Circuits and Functions

As simple as switches are, how they are categorized can be difficult to understand. All switches have a certain number of poles and throws. This is expressed using this format: (Number of poles)P(Number of throws)T For example, SPDT is used to represent a Single Pole Double Throw. A pole can be thought of as how many common pins there are and a throw are the number positions that common pin can connect to. [image] Each pole is switched together but is electrically isolated from the others. T…