The ornamental design for an electricalconnector for a grid bus bar system, as shown and described.
FIG. 1 is a front, bottom, and right side perspective view of an electrical connector for a grid bus bar system showing our new design;
FIG. 2 is a front, top, and right side perspective view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a left side elevational view thereof;
FIG. 7 is front side elevational view thereof; and,
FIG. 8 is a rear side elevational view thereof.
The broken lines in the drawing views represent unclaimed portions of the electrical connector and form no part of the claimed design. The dash-dot broken line in the drawing views represents the boundary of the claimed design.