A large current fuse 1 for automobiles comprising a fuse body 2 consisting of a pair of flat plate portions 4, 4 formed of a sheet metal by pressing process, an arm portion 5 bridging the flat plate portions, and a fuse element 3 attached to the arm portion, wherein a first housing member 10 and a second housing member 30 are arranged around the fuse body at an intermediate portion thereof, the first and second housing members being detachably fitted to each other, whereby the fuse element can be entirely covered with the first and second housing members. At least one of the first housing member and the second housing member is formed of a transparent resin so that the fuse element can be visually observed through the one housing member. A radiation fin is provided on at least one of the first and the second housing members.