It was a rainy day today. However, I revised the combiner box. The 35A fuse block will go into the refrigerator access compartment.
A few notes:
The pilot holes for each cable gland are 1.5 inches apart along a line about 5/8" from the top outer edge of the open box.
Using PG9 cable glands for the 8 AWG solar panel wire and PG11 cable glands for the 4 AWG stranded wire.
The positive and negative 4 AWG stranded wires enter through the PG11 cable gland at the bottom and connect to the positive and negative bus bars, respectively. The 4 AWG welding cable will connect to the 4 AWG stranded wire using a butt splice.
Wires from the panels will connect to the positive and negative bars through the PG9 cable glands.
TIP: Use 5/8" hole saw for PG9 and 3/4" hole saw for PG11 cable glands.