Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Combine cables by panels or pull separate cables ?
#11
With the 3s4p array, I wouldn't be happy with the 4x 7.67A = ~30.7A in 6mm2 cable, it's going to run pretty warm.
If you get a cold clear good sun day you can get more than the NOCT current sustained. Good idea to have some margin.

(09-23-2020, 12:26 PM)donnib Wrote: Now i just need to find out whether i want to combine using Y, MC4 connector the strings before running the cable to the MPPT charger or combine things in a terminal block  Undecided

I'd use terminal blocks in good UV rated boxes with proper cable glands. Water gets into everything.
Also MC4 connectors are only rated for max 20A.
https://en.wikipedia.org/wiki/MC4_connector
Cheap 4-life likes this post
Running off solar, DIY & electronics fan :-)
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)