Hello. I used the MPPT configurator which suggested above unit for 8 panels of two strings of 4 panels in parallel. Closed circuit voltage/current of one panel is 32.26V and 9,75A. The above unit has two dual MC4 inputs and I would like to now do they work in parallel or series from a total input calculation point of view.

E.g. in parallel current per string will be 4 x 9,75 which will slide in under the 45A capacity, but exceed the 30A MC4 rating. Then there will be two of these strings doubling the current if connected to the two MC4 ports were they in serial resulting in nearly 80A, but still only 32.26 V which is below the 48+5V startup voltage.

What am I missing or how can I best connect these 8 panels? There is no shading risk or anything although I planned to have an East and West facing setup of 4 panels each to ensure morning and afternoon sun it benefitted from.

Any help will be appreciated.