The ornamental design for a powerplug, as shown and described.
FIG. 1 is a front perspective view of a power plug showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof, wherein two pins of the power plug (shown in broken lines) are in a retracted position;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a rear perspective view of the power plug of FIG. 1, wherein the two pins of the power plug (shown in broken lines) are in an extended position.
The broken lines of the figures are for the purpose of illustrating environment and form no part of the claimed design.