[stickboy1375]

how do you not need a nuetral, how would he get 120 volts without one?
when installing a sub panel for 100 amps you use two #3 thhn for the two hots, one #3 thhn for nuetral and a #8 or 6 for ground to keep them isolated from each other

Because all the OP's loads are 240volts, you are not required to run a grounded conductor (neutral) to a sub-panel.

 

[stickboy1375]

ah didnt read that part now that makes sense, i didnt know there were no 120 volt loads

The last paragraph was pretty clear in the OP's first post. Kind of helps to read the entire post before posting advice, it just adds to clutter and confusion.

 

[stickboy1375]

You are saying 3 wire sub panels are compliant?
I am asking. Why would anyone set a sub panel with a 3 wire feeder?
I know it would be a four wire feeder if I was installing it.

Even with a 120 volt service, you still have the grounded conductor.

The service is required to have a grounded conductor run. After that point though, if all my loads are line to line, what is the purpose to have a grounded conductor to a sub panel?