AIC Rating

Rknrbn

New User
Location
WI
Occupation
Electrician
I'm building a 800 amp single phase service with a 38000 AIC rating. I have an existing 400 amp fused disconnect with proper AIC rating. I am upgrading and adding a 200 amp fused disconnect with the proper AIC that feeds a 10000 AIC rated main lug panel 150' away. I will also have a 200 amp main breaker panel with a 38000 AIC rating with a subpanel adjacent to that, with a 10000 AIC rating. So the 400 amp disconnect, the 200 amp disconnect, and the 200 amp main breaker panel are the 3 main disconnects equaling in 800 amps. Is this all correct and AIC ratings?
 
Your breakers, in the main light panel need to be series rated with your200A fuses, which they likely are, or you need to calculated available fault current after your 150' of conductors.
Your fused disconnects will need to have Class R fuse clips, which should be easy to do
 
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