The Power Distribution Boards (F120PDB & PDB-GF) are fuse panels for distributing power from ELV battery power supply systems.
Each board has a parallel pair of input fuses feeding a common supply bus. The bus feeds seven separately-fused output circuits.
The F120PDB has blade fuses (shown in the photo).
The PDB-GF has 5 mm x 20 mm glass fuses.
F120 Power Distribution Board V260 (MK2, Blade Fuses)
Power Distribution Board, 5mm x 20mm Glass Fuses