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Technical
Information - 3% Voltage Drop Charts
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Chart#1...
3% Voltage Drop @ 12 Volts
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Sample
Calculation= 50 A load
20 ft*
from battery require a minimum 2 gauge wire
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| Amps |
5 |
10 |
15 |
20 |
25 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
445 |
| Feet |
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| 10' |
18 |
14 |
12 |
12 |
10 |
10 |
8 |
8 |
6 |
6 |
6 |
4 |
4 |
2 |
2 |
1 |
1/0 |
1/0 |
2/0 |
3/0 |
| 15' |
16 |
12 |
10 |
10 |
8 |
8 |
6 |
6 |
4 |
4 |
4 |
2 |
2 |
1 |
1/0 |
2/0 |
3/0 |
3/0 |
4/0 |
4/0 |
| 20' |
14 |
12 |
10 |
8 |
8 |
6 |
6 |
4 |
4 |
4 |
2 |
2 |
2 |
1/0 |
2/0 |
3/0 |
4/0 |
4/0 |
x |
x |
| 25' |
14 |
10 |
8 |
8 |
6 |
6 |
4 |
4 |
2 |
2 |
2 |
1 |
1 |
2/0 |
3/0 |
4/0 |
x |
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| 30' |
12 |
10 |
8 |
6 |
6 |
4 |
4 |
2 |
2 |
2 |
1 |
1/0 |
1/0 |
3/0 |
4/0 |
x |
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40' |
12 |
8 |
6 |
6 |
4 |
4 |
2 |
2 |
1 |
1/0 |
1/0 |
2/0 |
2/0 |
3/0 |
x |
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| 50' |
10 |
8 |
6 |
4 |
4 |
2 |
2 |
1 |
1/0 |
1/0 |
2/0 |
3/0 |
3/0 |
x |
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| 60' |
10 |
6 |
6 |
4 |
2 |
2 |
1 |
1/0 |
2/0 |
2/0 |
3/0 |
3/0 |
4/0 |
x |
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| 70' |
10 |
6 |
4 |
2 |
2 |
2 |
1/0 |
2/0 |
2/0 |
3/0 |
3/0 |
4/0 |
4/0 |
x |
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| 80' |
8 |
6 |
4 |
2 |
2 |
1 |
1/0 |
2/0 |
3/0 |
3/0 |
4/0 |
x |
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| 90' |
8 |
4 |
4 |
2 |
1 |
1/0 |
2/0 |
3/0 |
3/0 |
4/0 |
x |
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| 100' |
8 |
4 |
2 |
2 |
1 |
1/0 |
2/0 |
3/0 |
4/0 |
4/0 |
x |
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| 110' |
8 |
4 |
2 |
2 |
1 |
1/0 |
2/0 |
3/0 |
4/0 |
x |
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| 120' |
6 |
4 |
2 |
1 |
1/0 |
2/0 |
3/0 |
4/0 |
4/0 |
x |
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| 130' |
6 |
4 |
2 |
1 |
1/0 |
2/0 |
3/0 |
4/0 |
x |
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| 140' |
6 |
2 |
2 |
1/0 |
2/0 |
2/0 |
3/0 |
4/0 |
x |
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| 150' |
6 |
2 |
1 |
1/0 |
2/0 |
3/0 |
4/0 |
x |
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| 160' |
6 |
2 |
1 |
1/0 |
2/0 |
3/0 |
4/0 |
x |
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| 170' |
6 |
2 |
1 |
2/0 |
3/0 |
3/0 |
4/0 |
x |
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| 180' |
6 |
2 |
1 |
1/0 |
2/0 |
3/0 |
x |
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| 190' |
4 |
2 |
1 |
2/0 |
3/0 |
4/0 |
x |
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| 200' |
4 |
2 |
1/0 |
2/0 |
3.0 |
4/0 |
x |
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| Amps |
5 |
10 |
15 |
20 |
25 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
445 |
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* From Battery To Load & Back
to Battery |
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Previous
Page |
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Chart#1...
3% Voltage Drop @ 24 Volts
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Sample
Calculation= 50
A load
20
ft* from battery will
require a minimum
4
gauge wire
|
| Amps |
5 |
10 |
15 |
20 |
25 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
445 |
| Feet |
|
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| 10' |
18 |
18 |
16 |
14 |
12 |
12 |
10 |
10 |
10 |
8 |
8 |
8 |
6 |
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| 15' |
18 |
16 |
14 |
12 |
12 |
10 |
10 |
8 |
8 |
6 |
6 |
6 |
6 |
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| 20' |
18 |
14 |
12 |
10 |
10 |
10 |
8 |
6 |
6 |
6 |
6 |
4 |
4 |
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| 25' |
16 |
12 |
12 |
10 |
10 |
8 |
6 |
6 |
6 |
4 |
4 |
4 |
4 |
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| 30' |
16 |
12 |
10 |
10 |
8 |
8 |
6 |
6 |
4 |
4 |
4 |
2 |
2 |
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40' |
14 |
10 |
10 |
8 |
6 |
6 |
6 |
4 |
4 |
2 |
2 |
2 |
2 |
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| 50' |
12 |
10 |
8 |
6 |
6 |
6 |
4 |
4 |
2 |
2 |
2 |
1 |
1 |
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| 60' |
12 |
10 |
8 |
6 |
6 |
4 |
4 |
2 |
2 |
1 |
1 |
1/0 |
1/0 |
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| 70' |
12 |
8 |
6 |
6 |
4 |
4 |
2 |
2 |
1 |
1 |
1/0 |
1/0 |
2/0 |
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| 80' |
10 |
8 |
6 |
6 |
4 |
4 |
2 |
2 |
1 |
1/0 |
1/0 |
2/0 |
2/0 |
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| 90' |
10 |
8 |
6 |
4 |
4 |
2 |
2 |
1 |
1/0 |
1/0 |
2/0 |
2/0 |
3/0 |
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| 100' |
10 |
6 |
6 |
4 |
4 |
2 |
2 |
1 |
1/0 |
2/0 |
2/0 |
3/0 |
3/0 |
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| 110' |
10 |
6 |
6 |
4 |
2 |
2 |
1 |
0 |
1/0 |
2/0 |
3/0 |
3/0 |
4/0 |
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| 120' |
10 |
6 |
4 |
4 |
2 |
2 |
1 |
0 |
2/0 |
3/0 |
3/0 |
4/0 |
4/0 |
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| 130' |
8 |
6 |
4 |
2 |
2 |
2 |
1 |
0 |
2/0 |
3/0 |
3/0 |
4/0 |
4/0 |
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| 140' |
8 |
6 |
4 |
2 |
2 |
1 |
0 |
2/0 |
3/0 |
3/0 |
4/0 |
4/0 |
x |
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| 150' |
8 |
6 |
4 |
2 |
2 |
1 |
0 |
2/0 |
3/0 |
3/0 |
4/0 | | | |