16
Recommended Cable and Fuse Sizing
Recommended Cable and Fuse Sizing
Recommended Cable Sizing
Cable
Cable Length (ft) / (m)
Recommended Cable Size
Solar
(input)
0 ft to 10 ft / 0 m to 3 m
8 AWG
11 ft to 20 ft / 3 m to 6 m
6 AWG
21 ft to 30 ft / 6 m to 9 m
6 AWG
Battery
(output)
0 ft to 10 ft / 0 m to 3 m
8 AWG
11 ft to 20 ft / 3 m to 6 m
6 AWG to 8 AWG
21 ft to 30 ft / 6 m to 9 m
6 AWG
NOTE
z
The cable specifications listed above account for critical, less than 3% voltage drop and may
not account for all configurations.
z
The specification of fuse cable is consistent with the input/output terminal of charge
controller.
Recommended Fuse Sizing
For your safety, it is recommended to install fuses at both the input and output ends of the
charge controller to ensure safe operations.
NOTE
z
Choose appropriate fuses according to the specifications of the solar panel and charge
controller.
Fuse from Solar Panel to Charge Controller
Solar Panel to Solar Charge Controller Fuse = Solar Panel/ Solar Panel Array Total Amps
*1.56
Solar Panels in Series
Solar Panels in Parallel
Total Amps I: I
1
=I
2
=I
3
Fuse = I
1
*1.56
Total Amps I: I
1
+I
2
+I
3
Fuse = (I
1
+I
2
+I
3
) *1.56
NOTE
z
In the formula, I represents the maximum output current of the solar panel, and 1, 2 or 3
represents the solar panel number, respectively.
Recommended Cable Sizing
Recommended Fuse Sizing
