The ornamental design for an overcurrentrelaytester, as shown and described herein.
FIG. 1 is a perspective view of an overcurrent relay tester showing the new design:
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left -side elevation view thereof;
FIG. 5 is a right -side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Any broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. Additionally, the overcurrent relay tester is not limited to the scale shown herein.