Why is this up to code.

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Jerseydaze

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Am looking at a modular home ,mod home company specked out 300 amp service all ready has 2 200 amp panels installed so why does the service size not need to be 400 amps I know it doesn't but why.
 
If you were to calculate this per article 220 you would probably see that it doesn't even need a 300 amp service. The size of the panels doesn't really mean anything.

Roger
 
Jerseydaze said:
Am looking at a modular home ,mod home company specked out 300 amp service all ready has 2 200 amp panels installed so why does the service size not need to be 400 amps I know it doesn't but why.

Something doesn't seem right here.
If the engineer of record for this modular home company has specified on the stamped plans that the service size be 300 amperes, has in fact the service become two- 200 ampere services? In other words are the service conductors connected together in the load side of the meter and then go to 2 different 200 ampere breakers in 2 different panels?
Before the engineer of record signs off on this one, he'll likely have questions as to why there was a deviation from his/her specifications. :smile:
 
with the limited amount of info given here I would assume that a 320amp continuous meter base and service would be needed.
 
ivsenroute said:
with the limited amount of info given here I would assume that a 320amp continuous meter base and service would be needed.

That's my first thought.... it's really a 400a service, 320a continuous.
 
wbalsam1 said:
In other words are the service conductors connected together in the load side of the meter and then go to 2 different 200 ampere breakers in 2 different panels?
That does not make it two services.
 
LarryFine said:
That does not make it two services.

Of course, you're right by using the exception #2 at 230.40.

I'd forgotten that. But my point was not to amend the Professional's stamp without prior approval. Thanks. :smile:
 
Per the OP, the "design" calls for a 300 amp service to these 200 amp panels, it can very easily be, and most likely is, more than sufficient to serve this installation.

I think to much assumption is being made to the question as it's asked.

Roger
 
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