Disconnect fuse size.

[gmtt]

In a given situation, there exists a 100A meter then a fused disconnect (fuse is missing) then to a 100A panel. What max/min size of fuse I can use in the disconnect, per code?

 

[Dennis Alwon]

In a given situation, there exists a 100A meter then a fused disconnect (fuse is missing) then to a 100A panel. What max/min size of fuse I can use in the disconnect, per code?

What size is the disco and what size service conductors do you have. My guess is 100 amp fuse is max if the disco is rated 100 amps.

 

[Jraef]

... what size service conductors do you have.

There's the real issue. Even if the disconnect is rated for 100A, if the conductors are only capable of 60A, you cannot put 100A fuses in it.


...well you can, but you mustn't.