if it is to be observed from some distance with same color wires supplied.
The only wire accepted by the NEC and european community as being dedicated is the green wire that means earth ground. The green wire can have a yellow stripe around it but it its still earth ground. Today, then a motor that has brushes is DC and a motor that does not is AC. If I am confused then I always find the source of power and then it becomes apparent. In the european community then the brown wire is hot and the blue wire neutral with single phase. In the American commuity then the black wire is hot and white wire is neutral with single phase. Always measure the voltage with a proven good voltmenter.
If you see a cylindrical bump on the frame of the motor, it has an external starting capacitor and is therefore an ac motor. Not all ac motors have them so you cannot tell if there is no capacitor.
