The ornamental design for fuse, as shown and described.
FIG. 1 is a perspective view of a fuse showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a right side view thereof, the left side view being a mirror image.
The oblique shade lines shown in the drawings represent the housing being transparent. The features shown in the broken lines in the drawings depict environmental subject matter only and form no part of the claimed design.