I installed 330W of solar panels
recently. I have hooked up some temporary wiring
, but now I am doing the job properly. I have some tinned 35mm square (AWG 2) cable and am planning the electrical installation
will be lead back to the service battery
with its own battery
switch I was originally planning 30A circuit breakers or fuses
in the system, but the options for fuse holders that will sensibly take 35 mm squared cable is limited. I could get a 40 amp ANL fuse, but it would need to be ordered from overseas.
I already have a 100 amp ANL fuse protecting the service
battery circuit (the panels
will charge service only) and I am considering using this existing fuse as the only protection in the solar
Adding the complexity of another fuse holder in the battery box
with the attendant voltage drop, risk of poor connections and cost seems to be of limited value.
I would be grateful for a second opinion.