1200 amp rating and clearances, does the setting of the OCP change things?

[acrwc10]

The installation is a 1,200 amp rated switch gear, a 1,200 amp frame main breaker, the setting on the main is less than 1,200 amps. Does this change the requirements for the electrical room, like fire rating?

 

[CONDUIT]

I would start by looking in 110.26(C)!

 

[Smart $]

.. the setting on the main is less than 1,200 amps. Does this change the requirements for the electrical room...

The less than 1200A setting does not change the 1200A equipment rating. So your room has to be compliant with 110.26(C)(2) if the gear is over 6' wide

 

[acrwc10]

Thank you