I would also consider the voltage coming in from the poco. Alot of the newer transformers supply you with a solid 125/245 system single and 125/215 3 phase, at least around here. Also we wire alot of boat lifts that are anywhere from 100 ft. to 1000 ft. or more from the main power. We generally go by the specs on the motor which includes a v/d allowance for 120/230. And everyone I have seen allow more than the 3-5%.
