My post above regards installing a fused disco adjacent to the gear being monitored, not necessarially a 3-pole within the 'gear'.

The 5 amp (mfg spec) fuses tend to pose situation to some EC's. IMHO, I see no issue with a 3 gang 'finger safe' midget fuse block, IF there is adequate space. A 3-pole CB is the 'disco' in this case.

Now, 'large' gear.....a Code compliant 'tap' to a fused disconnect switch....that works.

Quote:
"This type of installation always posses a dilemma to those of us who are the AHJ. Which articles of the code do we enforce and which ones do we let slide. I’d like to see what other people allow when someone asks to tap a switchboard that has no provisions for expansion and wants to feed one of these meters."

I (we) have to enforce the NEC, as adopted by NJ, as the EC's have to comply with it. I have done the 'tap' as an EC, as described above. I have not seen any sub-meter installs as an AHJ recently, but have approved 3 permit apps.





John