The ornamental design for an electricalhousing for an enclosure, as shown and described.
FIG. 1 is a front perspective view of an electrical housing for an enclosure according to the present invention;
FIG. 2 is top view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is rear view thereof; and,
FIG. 6 is a front view thereof.
The broken lines in FIG. 1 showing a portion of an exterior surface of an enclosure have been included for the purpose of illustrating that the electrical housing may be coupled to the exterior surface of an enclosure. The broken lines form no part of the claimed design.