Operator`s manual

DC WIRE SIZING CHART
Stranded Conductors for 12 Volt Circuits
10% Voltage Drop
A. Society of Aut.omotive
Engin.eers Type Wire
B. National Electrical
Code Type Wire
Wire Sl~e
Standing
Circular
~II Area
Circuit
Curre-nt
In AMPS
I.
2-
3.
••
5.
••
7.
O.
9.
'0.
'5.
20.
3D.
'0.
50.
55.
60.
75.
90.
'0
,.
14
'2 '0
0
•
•
,.
14
'2 '0
0 0
•
2
,
'6X3D
, ....
1511(27
19x2S
,.x2:\
19:a1
"9x23
.. ax21
,.
" "
,. ,.
37
Bl
127
127
1537
2336 3702
5833 93<13 14810 25910
37360
.503 .'07
6530 10380 16510
26250
4'740 66370 .3690
Maxim. um Lengt.h of Cond uclor
'n
Feet.
fro:tn Power Source t.o Load and Return
'"
26D
.0.
17 130
"0
330
, ..
227
SS
".7
, ..
'21)
....
,.,
240
43.7
B'
'D.
16. 26 •
71
113
'00
285
34.7
52
.. 132
2'0
57 57 143 232
3
'3.3
70
110
175
270
47.3 75.3
,21)
, ..
3D3
2".7
37
eo
••
'50
240
40.7
".7
103
, ..
26D
21.7
32.7 52.7
82.7
'31
210
35.3 58.3 89.6
, ..
227
<19.3
28.7 .S.7 73.3
11.
18. 300 31.7
SQ.3
70.'
'27
202 321
17.3
26
'2
66
,os
, ..
271
28.3
'5.3
7.
".
'8'
2 ••
'7.3
2 •
..
70
112
'80
2.5
,.
3D
••
7.
12' "3
3D6
.,
33 52.7
03.7
135 211
22.7 3.
57
9'
, ..
230
22
3.
58
90.3
, ..
..
""
60.7 96.3
'53 2'3
306
26.3
.. .7.3
'07
2'.3 '5.3
72
".
'.2
23D
2'
33.7
54 1S.3
23
36.3
57.7
92
14'
'84
30.7 4. 77.7
33 '2.3
83.3 133
,67
45
7'.3
••
76.3
121
'53
36
57
-«7.3
38.3
.,
97.3
'23
The volt.age drop for specific conductor len.gths :Lnay be calculated. by the formuhc:
Volt.a.ge drop 10.75 x I % L
CM
I = loa.d in amperes
where: L = conductor length in feet
eM = conductor circular MIL area
'When a circuit, including t.he ground return. uses several different si%e conduct.ors.
t.he voltage drop at the elect.rical device is the SUIn of t.he drops calculated for each
si%e segment of the circuil.
"
81
27
WESTERBEKE GENERATORS
'02