Correct me if I am wrong.
Have a buildiing that has 480v 3 phase coming into a gutter and instead of coming into a Main distribution panel they came off the taps and landed in to fusible disconnects.
At first the disconnects were for lighting and transformers but they have added since. 5 disconnects.
NEC requires no more than 6 throws of a switch is suitable for main disconnects...
Correct me if I am wrong
Regards.
Tazz