The ornamental design for a portable 400 hertzpowerdistribution unit, as shown and described.
FIG. 1 is a front perspective view of an embodiment of a portable 400 hertz power distribution unit showing our new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof
FIG. 5 is a side view thereof;
FIG. 6 is a second side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines in the Figures are for the purpose of illustrating portions of the portable 400 hertz power distribution unit that form no part of the claimed design.
The shade lines in the Figures show contour and not surface ornamentation.