main breaker vs main lug

[jwatts]

does a multi dwelling unit building require the tenant panels to be main breaker? there is a 600 amp single phase fused switch feeding three four gang meter sockets. there are 100 amp breakers in the meter sockets. the meter sockets and main switch are all to be located on the exterior of the building. one person is saying need main breaker...another says main lug. NEC says disconnecting means to be accessible by tenants. would the outside not be considered accessible?

 

[raider1]

Welcome to the forum.

I would say that the outside would be accessible and that you are not required to have a main breaker installed in each panel and that a main lugs only panel would be acceptable.

Chris

 

[HoosierSparky]

As long as the 100amp disconnect is lockable you'd be OK. You have to be able to isolate the circuit you are working on. In this case if you pull the 100 amp fuse/breaker at the meter section, you isolate the wiring from the SES to the panel. This meets the intent.

 

[don_resqcapt19]

I don't know of any code rule that requires a remote disconnect that feeds a panel to be a lockable disconnect.