Fabreeko AC Input mount for 3030 extrusions. Keeps the ends of the terminals with main voltage covered while giving you a clean way to mount it.

Uses 2 M3x12 cap head screws and 2 M3 3030 Drop-in T-nuts. I printed it in ABS+, but it shouldn't matter much. You may need to rotate the model in the slicer, with the large opening facing up for the best print.