I would like to replace a single pole light switch in my family room, but the configuration is not one that I am familiar with. Other than the ground wire, there are 3 12 gauge wires in the following configuration:
- 12 gauge black wire to the top backstab
- 12 guage black wire to the top screw terminal
- 12 gauge red wire to the bottom backstab
From the research I have done it looks like backstabs are generally frowned upon and if you are using the backstabs you should only be using 14 gauge wire (at least in a residential install).
So what should I be using to replace this switch and what is the correct way to wire it? An interesting point is that I have never found what this switch is actually controlling, but since I was in the box replacing another switch I thought it best to replace this one as well.