Setting up my solar system
I'm in the planning stages of adding solar to my travel trailer. I currently have a battery bank of two 6V flooded lead acid GC batteries in series that is 215 Ah 12 volts. I am planning on adding ...
Forum Discussion
CA Traveler wrote:
For 2 parallel panels no breaker required. For 3 it's a good idea. Usually fuses are used in the combiner box on the roof, not likely they will ever blow. Use 15A as 10A is to close to the panel or whatever the panel specs say. There are effects such as cloud edge that can cause max current.
Okay, good to know. I wasn't sure how close the current got to that. Thanks. I'll use 15 amp fuses. I wanted to do breakers, but I couldn't find anything rated for 48 volts that wasn't for a breaker box, so I'll just use two inline blade type fuses.
I'm not actually going to use a combiner box. I am planning on using a stud junction block for the negative wires and then I am going to just mount both 10 AWG wires coming from the panels directly to the 30 amp circuit breaker (rather than 20 amps, as per your post above). I'm assuming this won't be an issue, right?
And I'm going to do the parallel junction in my forward basement storage area where the controller will be. I'll have to run more wires down, which will be a pain, but I figure this will maximize wire length in the lower current wires and minimize it as the current increases.
