I checked and counted these panels for this Victron and I can safely connect 20 panels to it (according to the diagram from my previous post). Specs:
435 W
Voc: 39,33 V
Isc: 14,22 A
Vmp: 33,04 V
Imp: 13,17 A
Voc temp: -0,23%
Isc temp: 0,05%
Why I shouldn't use diodes?