DC circuit breaker guard

I used [this type of circuit breaker](https://www.amazon.com/gp/product/B077F882SK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) in my [solar battery box](https://kmcallister.github.io/skywave/2019/07/15/solar-battery.html). I ran into a problem where if I bump the box against something, it can break off the external button or switch. I 3D printed this shield or guard to prevent it from happening again.

Note, the edges of the guard are a bit sharp. A little filing takes care of that, but it would be a nice improvement to round them off in the 3D design. OpenSCAD source code is included.