We are getting ready to move our hot tub, and I’m going to need to run electrical service to the new location. This will be the third time I’ve done this, so I’m familiar with the procedure, no need to panic.
We have always used 6 gauge wire for these installations, without problem. The hot tub is 50 amp–a 50 amp breaker goes in the main box, and then on the outside box it splits to a 20 and a 30 amp breaker. The 6 gauge appears, googling around, to be the standard for hot tubs. But not according to the actual wire charts.
Our run is 43’. Looking atthis and other tables, we should be using either a 2 or a 1 gauge wire, but that’s huge! Nobody uses wires that big for service to a hot tub. What am I missing here?