UL Re-certification of Service Entrance board

M

monitaverma

Member
I have a unique situation. The existing service board is rated for 600A, but a 400A main breaker was originally installed. We are now expanding the existing space and require additional capacity. As part of this upgrade, we’re working with the utility company to replace the service conductors with ones rated for 600A and to install a new 600A main breaker.


My question is: Do we need to obtain UL re-certification for the board since we are replacing the main breaker?
 
monitaverma said:
My question is: Do we need to obtain UL re-certification for the board since we are replacing the main breaker?
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Is this a factory authorized/provided modification?
Many panels go through the UL Listing process with several optional main breakers.
 
monitaverma said:
I dont think so. This is going to be done by ecertified electrical contarctor.
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Jim is asking about the original listing of the panel. Often they are listed for use with more than one size main breaker. If that is the case and if you can get the breaker in the listing, no additional evaluation would be required.
 
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