Warning - newb question. I had an electrician come out to setup a garage 220-volt plug. I have a hot tub that I no longer use and he suggested running that 6-gauge wire to the garage and connect it to a nema 14-50 outlet. For my needs i think even a 30-amp plug would be fine but he said "that should push 100 amps easily". So I'm hoping this would work for a rated 50 amp nema 14-50 plug. But my newbie spider senses came alive. I would think you would want 4-gauge for 100 amp or close to it. Yes? Isn't it the device itself (in this case, a MS) that determines amperage draw? Can I tell the MS to not draw more than 50 amps? Is there a way by looking at a panel to determine the safe rated amperage? I did not see any labels on the panel but we didn't take the cover off either - I believe he was speaking from his electrical experience on hot tubs in general. I also assume that if my panel/wiring did support 100 amps (which I can't see needing), I would want an outlet different than the 14-50? I did not hire the guy. Thanks in advance.