The general size(see Table A.1 & A.2 of IEC60034-7)

STAMDARDS

----

Code I

Code II

----

Code I

Code II

----

Code I

Code II

----

Code I

Code II

B3

IM B3

I M 1001

B14

IM B14

I M 3601

V1

IM V1

I M 3011

V14

IM V14

I M 4031

B5

IM B5

I M 3001

B15

IM B15

I M 1201

V2

IM V2

I M 3231

V15

IM V15

I M 2011

B6

IM B6

I M 1051

B20

IM B20

I M 1101

V3

IM V3

I M 3031

V16

IM V16

I M 4131

B7

IM B7

I M 1061

B25

IM B25

I M 2401

V4

IM V4

I M 3211

V17

IM V17

I M 2111

B8

IM B8

I M 1071

B30

IM B30

I M 9201

V5

IM V5

I M 1011

V18

IM V18

I M 3611

B9

IM B9

I M 9101

B35

IM B35

I M 2001

V6

IM V6

IM 1031

V19

IM V19

I M 3631

B10

IM B10

I M 4001

--- --- ---

V8

IM V8

I M 9111

V30

IM V30

I M 9211

--- --- --- --- --- ---

V9

IM V9

I M 9131

V31

IM V31

I M 9231

--- --- --- --- --- ---

V10

IM V10

I M 4011

V35

IM V35

I M 2031

--- --- --- --- --- --- --- --- ---

V37

IM V37

I M 2131

Table 3- Significance of the first number
First numberal Significance Table relevant to the second and third numberals
0 Not allocated -
1 Foot-mounted machines with endshield bearing(s) only腳座\端架軸承 5
2 Foot-and-flange-mounted machines with endshield bearing(s) only腳座\法蘭\端架軸承 6
3 Flange-mounted machines with endshield bearing(s) only, with a flange part of an endshield法蘭\端架軸承(含一端架法蘭) 7
4 Flange-mounted machines with endshield bearing(s) only, with a flange not part of an endshield but an intergral part of the frame or other component法蘭\端架軸承(含一法蘭,不在端架上,位於本體上或其他零件上) 8
5 Machines without bearings無軸承安裝 9
6 Machines with endshield bearing(s) and pedestral bearing(s)端架\台座安裝型 10
7 Machines with pedestal bearing(s) only台座安裝型 11
8 Vertical machines of construction not covered by first numberal 1 to 4垂直安裝 12
9 Machines with special mounting arrangements特殊安裝設計 13