100 amp service to a 125 amp panel

[pgrwd]

I have come across a set up where 100 amp service terminates to a 125 amp panel. The larger panel seems to be used to accomodate more breakers which power the large amount of lights and outlets in the home. However there are only 60 amps out of the 100 being used.

Does this config need to be changed? If so why and how?

 

[roger]

Re: 100 amp service to a 125 amp panel

Are you saying the service entrance conductors are terminated to a 125 amp OCPD, or is there a 100 amp OCPD installed in a 125 amp rated panel?

Roger

 

[pgrwd]

Re: 100 amp service to a 125 amp panel

A 125 amp rated panel with a 100 amp OCPD as the main and a sub with a 20 or more breakers.

My apolgies for mixing terminology. Keep me straight.....I'm learning.

 

[jimwalker]

Re: 100 amp service to a 125 amp panel

I see nothing wrong with that installation.Many times the panel is rated far higher than the main breaker,often to get more spaces.

 

[pgrwd]

Re: 100 amp service to a 125 amp panel

I again got negative comments about this set up from a pesky inspector.

Thanks for the reply.

 

[jimwalker]

Re: 100 amp service to a 125 amp panel

Solve them problems in 2 ways.First carry a copy of 2002 nec and second ask him to find the violation in the code book.While he is looking go take lunch.

 

[roger]

Re: 100 amp service to a 125 amp panel

Ask the inspector to explain how you can provide 50 amp fuses for a piece of equipment if you can't provide a fusible switch rated at 60 amps?

This is the same thing.

Roger

 

[bill addiss]

Re: 100 amp service to a 125 amp panel

However there are only 60 amps out of the 100 being used.

What does this mean?

Bill

 

[bphgravity]

Re: 100 amp service to a 125 amp panel

I imagine he means that the total demand load is at 60-amperes on the 100-ampere service.

 

[sandsnow]

Re: 100 amp service to a 125 amp panel

I'm one inspector who thinks it's ok.

What were his negative comments?

I hope things work out in your favor.

 

[sundowner]

Re: 100 amp service to a 125 amp panel

I would watch my delivery to your local AHJ.

" While he is looking go take lunch."

When I was younger and foolish I was a lot quicker with my tounge,and used to wag it a "bit" at inspectors.

Several jobs later I got a call from a Sub. on that particular job of mine...What he told me was " Dude yer gonna need a shovel to clear away the red tags" My point being, you have to work with the same guys job after job. Even if your area is metro, you can bet you will run into the same inspector again. One more thing to think about - He can make your life a living Hell if anything escalates from a "nose to nose". Work with him, you'll find he's probably a pretty good guy.

I learned my lesson rather inexpensively, but it is worth a million.