Trying to wire this PID & Relay with fuses (if needed) to (2) heat plates with (4) cartridge heaters. Tried by following a YouTube video but turns out, it was a different ( but the same model #, 
lol) PID, so was wired wrong and I’m sure you know the rest of the story.
. Since then I’ve educated myself on how to determine what wire goes where and of course some of the symbols involved in wiring schematics. So just to be on the safe side I’d thought it might be a good idea to get a second look to make sure it’s right and to see if I need fuses. Also do I need a power on/off button?
I also have it all in a plastic box. Kinda ghetto but I think it will work. ( using mostly recycled materials)
