FIG. 1 is a front view of a ground fault circuit interrupter (GFCI) of my new design, the opposite view being the rear view;

FIG. 2 is a left side view thereof, the opposite view being the right side view;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof, the opposite view being the bottom view; and,

FIG. 6 is a bottom view thereof.

The broken lines illustrate the environment elements of the ground fault circuit interrupter (GFCI) and form no part of the claimed design.