Hi ,
OP bought and installed a new PowMr WM5k-III inverter about a month ago.
Used it with 9 solar panels:
- 6pcs of 410W, 49.5Voc, 40.9Vmpp
- 3pcs of 390W, 45.06Voc, 38.01Vmpp. One of them was connected to a TIGO optimizer (because of shadows)
All together 432Voc, (would be 475Voc in -10...