Solar combiner box
Anyone made there own combiner box if so how and what did you use. Am solar has one for $80 but I am sure it can be built for a lot less.
Forum Discussion
A lot of good ideas here and all look like they work well. Just a note about outside wiring and UV deterioration. I've been using the grey Corlon PVC outside around the farm for the past 20+ years. In no cases have I had the stuff get brittle, break or otherwise become un-serviceable. A bigger problem is the cables from the panels to the box. We are using 10ga stranded sun resistant Romex we got from Northern Arizona Wind and Sun. I've also covered it with common black split loom available at ACE or any electrical supplier or auto supply store. The cables are much more susceptible to sun damage than the Corlon PVC.
