I have been experiencing fresh out of the box motor problems. I went through 3 condensor fan motors to get a good one 3 weeks ago and now I am having the same problem with a blower motor at the same location. I have ordered the 3rd one today. These motors are drawing just over full load amps and go out on internal overload. Rated 460/3ph. Supply voltage 480. These motors are factory replacements from 2 different mfg's. I have wired motors from 5w to 10,000 hp and I am considering taking an office job at this point. Any Input??