Suitable for VETUS fuses of 40-50-63-80-100-125-160-200-250-300-355-425 and 500 Amp. The fuses to match are of the so-called “slow blow” type. They are encapsulated in glass, so as to prevent fire. We suggest that you use this holder for the storage of spare fuses as well. The fuse holder comes with a protective cover.