I'd like to build a fun audio amp. Its a blue tooth module, so there are no controls. I just want a simple on/off switch. This amp is to be used in a workshop, and because I live in Las Vegas (where it gets quite hot in the summer) I don't want to leave the power supply engaged all the time. I'm not all that worried about speaker pop on startup. I'd like to shut off power upstream of the switching power supply. I was considering using this switch, just because it looks cool. I intend to use it in this circuit
What I'm not clear about is safety using this switch. I'm guessing the power supply output is approx 2 or 3 amps at 14v. I don't know the input power ratings. I'm thinking worst case is that somebody might bridge the open knife blade to blade seat with a sweaty hand?
The parts aren't all on hand yet, so I don't know the actual operating current in a single leg of that A/C circuit.
The other option is to use a double pole, single throw switch of the same design, to shut off both legs of the 120v wiring, but that seems much more dangerous to me. Somebody could bridge the 120v terminals on the hot side of the switch. (In fact, why do they even make a double pole single throw switch like that? That just seems unsafe.)
Note: the intent here is that this amp assembly hangs on the wall, about ten feet from the door of the shop. I am not worried about tossing a tool on the workbench and having that short out the switch. I am not worried about hitting the switch with my hands when I enter the dark shop (while trying to find the light switch)
Your thoughts here? Is this crazy unsafe?