Switchboard question

[slice]

Hello all I am working on a large residential project and am designing the main switchboard. The load per article 220 is around 600A for each of two meter banks and one house panel. I am planning on supply each with an 800A Circuit breaker in a main switchboard. This switchboard is directly connected to the utility transformer secondary. My question is it allowable to install a 2000A switchboard for the above scenario? I believe it is acceptable since the calculated load is less than 2000A, just the sum of the breakers is larger than the rating (2400A). Also am I correct in that a main breaker is not required for this case (even though the combined breaker ratings exceed the switchboard rating)?

 

[iwire]

Hello all I am working on a large residential project and am designing the main switchboard. The load per article 220 is around 600A for each of two meter banks and one house panel. I am planning on supply each with an 800A Circuit breaker in a main switchboard. This switchboard is directly connected to the utility transformer secondary. My question is it allowable to install a 2000A switchboard for the above scenario? I believe it is acceptable since the calculated load is less than 2000A, just the sum of the breakers is larger than the rating (2400A). Also am I correct in that a main breaker is not required for this case (even though the combined breaker ratings exceed the switchboard rating)?

I am guessing you meant the load was 1600 not 600?

But anyway yes you can use a 2000 amp main lug only switchboard with up to six breakers of any size as long as the calculated load remains under 2000 amps.

 

[slice]

sorry the load is 600 x 3, the house, and two meter banks are each ~600A