ECN Forum Forums Code Related Discussion NEC & other Code issues Can't find code reference. Help

Looking at the GenTran installation guide, it does appear that there is a neutral bus in the GenTran and they talk about installing the required GFCI/AFCI breakers in the GenTran.
http://gentran.net/assets/pdfs/EncoreInstall.pdf

I also saw another smaller GenTran that looks like it uses plug fuses. That would be troubling on a new installation. There does not seem to be any provision for xFCI

https://gentran.net/assets/pdfs/oldinstall.pdf