Just to be picky.
Originally Posted by pdh
Industrial GFCI devices intended only for equipment protection have higher set points.


GFCI stands for Ground Fault Circuit Interrupter, it is a very specific item built for people protection. The only currently available ones are Class A which must operate when the current imbalance exceeds 6mA based on a specific time-current curve. There used to be a Class B device but it was only for swimming pool lights. GFCI are only available up to 240V.

Any other Ground Fault protective device should not be called a GFCI. There is no universal abbreviation for these other devices. Common terms include GFPE, for 30mA trip ranges, and GFI or simply GF, for service entrance types in the range 200-1200A.