This fuse holder is only suitable for Victron 300 to 500A 80V fuses, as they have 3/8“ holes instead of 5/16”. The distance between the terminals is too “large” to accommodate standard ANL fuses.
Provide good cable support (e.g., tie wraps with eyelets) for heavy, stiff cables (4/0 AWG) to reduce mechanical stress on the fuse holder.
Also provide terminal protectors to prevent short circuits.