Matt Donovan
Member
- Location
- United States
I am tapping off an 800A feeder (2x 600mcm) to a 600A disconnect. I would have used 2x 350mcm (sized for 600A), but the tap is over 25ft so I am planning to use 2x 600mcm (sized for 800A) for the tap conductors. Is it OK to terminate on a 600A disconnect with 600A fuses? Or do I need to terminate on an 800A disconnect with 600A fuses? The second option seems silly, but some people think that if the tap conductors needed to be sized for 800A, then the bus they land on must be sized for 800A also. Is this addressed in the code?