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Power Cable Calculator
0-4ft
Total Amperage
0-20
14
20-35
12
35-50
10
50-65
8
65-85
6
85-105
6
105-125
4
125-150
2
The above chart shows cable gauges to be used, if no less than a 0.5 volt drop is acceptable. If aluminium wire or tinned wire is used, the gauges should be of
an even larger size to compensate. Cable gauge size calculation takes into account terminal connection resistance. 1 Metre = 3.28 Feet
Three Channel Installation
FUSE
4-7ft
7-10ft
10-13ft 13-16ft 16-19ft 19-22ft 22-28ft
12
12
10
10
8
8
8
8
6
8
6
4
6
4
4
6
4
2
4
4
2
2
2
0
L
FR
FL
10
8
8
6
6
6
4
4
4
4
4
4
2
2
2
2
2
2
0
0
0
0
0
0
R
RR
RL
FL FR
RL RR
PLEASE NOTE: The crossover selector positions
8
4
4
2
0
0
0
0
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