Is the use of shunt trip CB's a design issue or a code issue?

If Code, where?

If design, why?

Seen some used as ground fault trips for equipment panels many times.

Also, seen some that are dropped some loads out of back-up power panels.

And one questionable installation that would drop power for a server, by a computer command.

Has always made me wonder......

Mark Heller
"Well - I oughta....." -Jackie Gleason