The ornamental design for a singledoor for an electrical panel enclosure, as shown and described.
FIG. 1 is a perspective view of a single door for an electrical panel enclosure showing our new design;
FIG. 2 is a front elevational view of the single door;
FIG. 3 is a right elevational view of the single door;
FIG. 4 is a top plan view of the single door;
FIG. 5 is a rear elevational view of the single door;
FIG. 6 is a left elevational view of the single door;
FIG. 7 is a bottom plan view of the single door;
FIG. 8 is an enlarged, fragmentary view of a left portion of FIG. 4; and,
FIG. 9 is an enlarged, fragmentary view of a right portion of FIG. 4.
The single door is shown broken away in FIGS. 1-7 of the drawing to indicate indeterminate height and width, it being understood that it has a uniform shape and appearance through its height and width.
Portions drawn in broken lines are for illustrative purposes only and form no part of the claimed design.