On 12/2/10 8:30 AM, Jay Nakamura wrote: >> you mean 240V AC 50HZ and move from 120V 60Hz? (or also 50Hz) > > In US, I think everything is 60Hz. But I mean 208v single phase. > (Which is what you get when you combine two 120v single phase legs out > of three phase, I believe. I am not an expert on AC...)
Correct, a L-N connection will get you 120V, a L-L connection will get you 208V. Everything in the US is 60Hz. >> you will need to check each device if it supports 240V, commonly the >> specified power ratings are printed at a stricker on the device itself. > > I have even been looking at USB HD AC adapter and all other odd ball > equipment and I always see the label say "100~240v AC". Dell's old > rack mount monitor/KB from 5 years ago even supports 208v (Just wrong > connector.) > The vast majority of power adapters are switching these days and will run up to 240, it's when they have built in NEMA 1-15 or 5-15 prongs that you have to overcome. ~Seth