Forum Discussion
Mike_Poorman
Dec 29, 2019Explorer
crcr wrote:
I'm building a solar system on our TT. I am going to buy my own MC4 connectors, crimpers, etc, and build my own custom length cables for connecting the roof solar panels to the roof combiner box.
I'm having trouble finding quality 10 gauge UV-resistant cooper (not copper clad aluminum) cable designed to attach MC4 connectors to, in say 50 ft lengths (or where it can be ordered by the foot). Anyone have good source(s) to recommend for this? Sometimes I find some cable that looks good initially, but then find one or more reviews that state that the cable they received was 12 gauge, not 10 gauge.
Another question -- I'm finding both 19 strand and 7 strand cables -- what are the pros and cons of each (I presume that 19 strand is more flexible), and which is designed to work well with MC4 connectors?
Thanks for any input!
If you have not yet found a source for the wire, check a welding supply store.
When I was looking into solar on another trailer I looked into getting the needed cabling and noticed that the welding supply store had all of the different gauges to make it work.
On top of that the cables will be much more flexible and easier to work with.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,243 PostsLatest Activity: May 11, 2025