Komatsu PC20MR-2 Shop Manual page 18

Table of Contents

Advertisement

Foreword
Electric wire code
In the wiring diagrams, various colors and symbols are employed to indicate the thickness of wires.
This wire code table will help you understand WIRING DIAGRAMS.
Example: 5WB indicates a cable having a nominal number 5 and white coating with black stripe.
Classification by thickness
Norminal
Number of
number
strands
0.85
11
2
26
5
65
15
84
40
85
60
127
100
217
Classification by color and code
Circuits
Priority
Classification
Code
1
Primary
Color
Code
2
Color
Code
3
Color
Code
4
Auxiliary
Color
Code
5
Color
Code
6
Color
Copper wire
Dia. of
Cross section
2
2
strands (mm
)
(mm
)
0.32
0.88
0.32
2.09
0.32
5.23
0.45
13.36
0.80
42.73
0.80
63.84
0.80
109.1
Charging
Ground
W
B
White
Black
WR
White &
Red
WB
White &
Black
WL
White &
Blue
WG
White &
Green
Cable O.D.
Current rating
(mm)
(A)
2.4
12
3.1
20
4.6
37
7.0
59
11.4
135
13.6
178
17.6
230
Starting
Lighting
Instrument
B
R
Black
Red
BW
RW
White &
Red &
Black
White
BY
RB
Black &
Red &
Yellow
Black
BR
RY
Black &
Red &
Red
Yellow
RG
Red &
Green
RL
Red & Blue
Electric wire code
Applicable circuit
Starting, lighting, signal etc.
Lighting, signal etc.
Charging and signal
Starting (Glow plug)
Starting
Starting
Starting
Signal
Y
G
Yellow
Green
YR
GW
Rellow &
Green &
Red
White
YB
GR
Yellow &
Green &
Black
Red
YG
GY
Yellow &
Green &
Green
Yellow
YL
GB
Yellow &
Green &
Blue
Black
YW
GL
Yellow &
Green &
White
Blue
Other
L
Blue
LW
Blue &
White
LR
Blue &
Yellow
LY
Blue &
Yellow
LB
Blue &
Black
00-15

Advertisement

Table of Contents
loading

This manual is also suitable for:

15001

Table of Contents