Originally Posted by rmeador
...My system is a mix of 1/0 (or maybe 2/0) cables to the bank plus 4/0 from the combiner to the inverter/charger. I'm thinking the jumpers should be 1/0 or 2/0 but I'm not sure which. They'll be very short, probably only about a foot.
Just make sure you are sizing your cables correctly. 4/0 for a combiner to charger and 1/0 or 2/0 for a jumper are overkill.
Do you mean 1 AWG not 1/0 AWG maybe?