This is just a simple mod of the IEC adapter Ratrig provided. I cut it in half, got rid of a couple holes and moved the remaining holes a little, then moved the walls to fit the plug i had on hand. I have provided the STEP file so you can do what you need to make it fit your plug.
In the slicer you'll need to scale it up 2540% as it's in imperial units.
The author remixed this model.