A thought or two...
You say that this unit runs on 3 phase wye, but you list voltages that are(at least in the US) not 3 phase wye.
I believe 380 & 415 are european system voltages. But, 277 is a single phase voltage and 240 is either a single phase voltage or a delta connected, 3 phase voltage.
There is some discussion about not using orange for the 480 volt coding due to the common practice of using orange to identify the "high leg" of a 3 phase, 4-wire delta system.
