Wire Sizing Charts

Here is a few charts to help you with what size of wire you need.  
This information is provided as a reference only. 
 
Wire Sizing Chart 12 Volt System
Maximum one-way distance ( feet ) for 2% voltage loss
in 12 volt systems. Wire Size (AWG)
Do not exceed the 2% drop for wire between PV modules and batteries.
Amps
14
12
10
8
6
4
2
1/0
2/0
4/0
1
45
70
115
180
290
456
720
.
.
.
2
22.5
35
57.5
90
145
228
360
580
720
1060
4
10
17.5
27.5
45
72.5
114
180
290
360
580
6
7.5
12
17.5
30
47.5
75
120
193
243
380
8
5.5
8.5
11.5
22.5
35.5
57
90
145
180
290
10
4.5
7
11.5
18
28.5
45.5
72.5
115
145
230
15
3
4.5
7
12
19
30
48
76.5
96
150
20
2
3.5
5.5
9
14.5
22.5
36
57.5
72.5
116
25
1.8
2.8
4.5
7
11.5
18
29
46
58
92
30
1.5
2.4
3.5
6
9.5
15
24
38.5
48.5
77
40
-
-
2.8
4.5
7
11.5
18
29
36
56
50
-
-
2.3
3.6
5.5
9
14.5
23
29
46
100
-
-
-
-
2.9
4.6
7.2
11.5
14.5
23
150
-
-
-
-
-
-
4.8
7.7
9.7
15
200
-
-
-
-
-
-
3.6
5.8
7.3
11
 
 
Wire Sizing Chart 12 Volt System
Maximum one-way distance ( feet ) for 5% voltage loss
in 12 volt systems. Wire Size (AWG)
A 5% loss is acceptable between batteries and lighting circuits in most cases.
Amps
14
12
10
7
6
4
2
1
1/0
2/0
4/0
1
106
169
269
427
679
1080
1717
2166
2730
3444
5475
2
53
85
134
214
340
540
859
1083
1365
1722
2738
4
27
42
67
107
170
270
429
542
682
861
1369
6
18
28
45
71
113
180
286
361
455
574
913
8
13
21
34
53
85
135
215
271
341
430
684
10
11
17
27
43
68
108
172
217
273
344
548
15
7
11
18
28
45
72
114
144
182
230
365
20
-
8
13
21
34
54
86
108
136
172
274
25
-
-
11
17
27
43
69
87
109
138
219
30
-
-
9
14
23
36
57
72
91
115
183
35
-
-
-
12
19
31
49
62
78
98
156
40
-
-
-
-
17
27
43
54
68
86
137
45
-
-
-
-
15
24
38
48
61
77
122
50
-
-
-
-
14
22
34
43
55
69
110
 
 
Wire Sizing Chart 24 Volt System
Maximum one-way distance ( feet ) for 5% voltage loss
in 24 volt systems. Wire Size (AWG)
A 5% loss is acceptable between batteries and lighting circuits in most cases.
Amps
14
12
10
7
6
4
2
1
1/0
2/0
4/0
1
213
338
537
854
1359
2160
3434
4332
5460
6887
10951
2
106
169
269
427
679
1080
1717
2166
2730
3444
5475
4
53
85
134
214
340
540
859
1083
1365
1722
2738
6
35
56
90
142
226
360
572
722
910
1148
1825
8
27
42
67
107
170
270
429
542
682
861
1369
10
21
34
54
85
136
216
343
433
546
689
1095
15
14
23
36
57
91
144
229
289
364
459
730
20
-
17
27
43
68
108
172
217
273
344
548
25
-
-
21
34
54
86
137
173
218
275
438
30
-
-
18
28
45
72
114
144
182
230
365
35
-
-
-
24
39
62
98
124
156
197
313
40
-
-
-
-
34
54
86
108
136
172
274
45
-
-
-
-
30
48
76
96
121
153
243
50
-
-
-
-
27
43
69
87
109
138
219

 
 
 
Maximum Ampacity for Copper and Aluminum Wire
Wire Size
Copper
Aluminum
14
25
.
12
30
25
10
40
35
8
55
45
6
75
60
4
95
75
2
130
100
1
150
115
1/0
170
135
2/0
265
150
4/0
360
205
 NEC allows rounding up cable ampacity to next standard fuse or breaker.
There are no products to list in this category.
© WindAndSunPower.com 2017
Proudly powered by OpenCart and CsillámVilág
Codeinspires web and mobile development
Kalavria Extra Virgin Olive Oil