The ornamental design for an electricalenclosure, as shown and described.
FIG. 1 is a perspective view of an electrical enclosure showing our new design;
FIG. 2 is a side view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof; and,
FIG. 5 is a top view thereof.
The pairs of closely adjacent spaced jagged broken lines in the drawings form no part of the claimed design. Portions of the design between the jagged lines form no part of the claimed design. All other broken lines are directed to unclaimed portions and form no part of the claimed design.