No, already have two 50A breakers feeding the red and black wires. Want to get a box and mount two sets of 110V 20A receptacles. Feed one with the black and neutral and the other with the red and neutral. As long as I stay below 50A total load I think I'm OK with the neutral, which would carry 40A in this example. Now if I wanted 50A from the red wire and another 50A from the black wire, the neutral would be carrying 100A, right? That's not good. I think as long as I stay at 50A or lower total load I'm OK.