M mryan Member Mar 31, 2011 #1 30 unit building largest motor in the unit is one motor only or times 30 for service size.
C cpal Senior Member Location MA Mar 31, 2011 #2 If you are considering the entire service demand it should be the sum of all the motor currents in the structure plus 25% of the largest. See 220.50 (2011 NEC)
If you are considering the entire service demand it should be the sum of all the motor currents in the structure plus 25% of the largest. See 220.50 (2011 NEC)
