Long time, no type! Hey, don't shop via the mail, go to a local supply house!
Usually, 120/208 3 phase, 4 wire, with a GROUND! 3 'hots'; 1 neutral, 1 ground
As everyone else said, it ain't that big, and it's not that unusual. (It's NEMA)
200 amp, 3 phase, w/grd., 480 volt Russel Stohl....now that's big & $$$$$$$ (MRI trailer unit hook-up)
[This message has been edited by HotLine1 (edited 03-10-2005).]