10
2
0
170A
Fusing is a recommendation in PV systems to provide a safety
measure for connections going from panel to controller and
controller to battery. Remember to always use the
recommended wire gauge size based on the PV system and
the controller.
AWG
16
14
12
10
8
6
4
Max.
Current
55A
30A
20A
15A
10A
75A 95A 130A
NEC Maximum Current for different Copper Wire Sizes
Parallel
Fuse from Controller to Battery
Fuse from Solar Panel(s) to Controller
Ex. 200W; 2 X 100 W panels
Ex. Wanderer 10 = 10A fuse from Controller to Battery
Controller to Battery Fuse =
Current Rating of Charge Controller
Fuse
= minimum of 11.5 * 1.2 = 14.38
= 15A fuse
Total Amperage = Isc1 + Isc2 = (5.75A + 5.75A) * 1.2
