Motor-T:
Yes, like most of Continental Europe, Germany had standardized at 220/380V, but they're now changing to the new E.U. standard of 230/400V nominal.
Whether they've actually changed anything or just indulged in political meddling with the tolerances like the U.K., I don't know.
I would guess the latter, and that across Europe we will start to see true 230/400V supplies as xfmrs get replaced. That's likely to be many, many years, of course.
Big 3-ph motors aren't my specialty. The windings are going to have a higher reactance run on 60Hz than the design value of 50Hz, but even so I'm not sure a 380V motor would be happy on an American 480V supply.
Anyone?
