Replace a 30 amp. 220v dryer outlet (it has 3 wires in the box and a ground) with a 20 amp, 220 v outlet for a table saw. Which wires do I use? the 20 amp outlet doesn''t allow for both hot leads to be connected. Red hot, black hot, and white neutral. Dominick Amorosso July 13, 2021 at 8:50 pm