The form of the vehicles indication(JNR Electric Locomotive)

Example

‚d ‚e ‚U‚T  ‚P‚P‚O‚W
*a *b@*c@@ *d

*a : The sign which shows an electric locomotive (An electrical initial).

*b : The number of the power wheel

sign B C D E F H
number of power wheel 2 3 4 5 6 8

*c : A form number by the kind

num. electric current performance
10`29 DC Less than top speed 85km/h
30`39 DC•AC
40`49 AC
50`69 DC More than top speed 85km/h
70`79 AC
80`89 DC&AC
90`99 Trial production @
100`499 DC For JR new products
500` AC or DC&AC

*d : Manufacture number

Though it is usually a turn from No.1, for example it is distinguished by the specification in the number such as the 500's,the 1000's. And the 900's are used for the preceding trial production car again.