CUTLER HAMMER Size 5 Autotransfomer Starter

CUTLER HAMMER Size 5 Autotransfomer Starter - Starts up to 100 HP on 230 volts and up to 200 HP on 460 volts.  Main contactors have 220 volt coils.    Appears that some coils will need to be changed to operate at 460 volts.   Pushbuttons are mounted on the side.