It wouldn't be a nine lead motor, and it wouldn't be standard. But in theory you could have a motor where the two possible connections are 480V or 277V, by wye or delta connecting the windings.
Also, with any sort of multiple tap transformer (and the centerpoint splices of the spliced leads are clearly taps in an autotransformer circuit), you can always supply or draw current. Not saying its a good idea, not saying that it would be code. But if I do my figuring correctly, the three splices in a 480/240 V nine wire motor are sitting at 240V apart with a 60 degree phase offset from the 480V supply.
-Jon
