Originally Posted by gfretwell
240.52 Edison-Base Fuseholders.
Fuseholders of the Edison-base type shall be installed only where they are made to accept Type S fuses by the use of adapters.


I would have to agree with Greg, if you follow the wording exactly it says you may not install the fuseholder at all unless you are providing the adapter. Now the mini breakers will have to be made in "S" configurations.