Hi Alan, thanks for your comment!
My colleague (from Wyoming) who is responsible for the electric design makes up a different calculation:
The 70 A breaker may be charged with 80% maximum. So he says he is limited to 56A. Each motor draws 25A at full load according to the data table, service factor is 1 (I'm still trying to figure what that term stands for). So he calculates that there are 6A left for anything else which is not sufficient.
Without any idea of the "why" for those rules I just have to accept those figures. That's why I wanted to propose to reduce apparent power.
