Two 100 amp Breakers

Main panel had two 100 amp breakers in it, if the panel rating is 125 amp how should I write this up, If at all?

I don’t see a problem with two 100-amp breakers in a 125-amp panel.

I am surprised that no electrical gurus have been here within the past six hours. Electrical gurus? Where be y’all?

Wouldn’t that be 200amp load in a 125amp max panel?

It would depend on how it’s wired. I thought an electrical guru could determine more from the dark picture than I could, but generally simply adding up the numbers on the breakers to get a maximum is not the way to do it.

It wouldn’t be any different if they were, say, 75-amp breakers. They would also add up to more than 125 amps.

Was there a subpanel anywhere? I often find two 100-amp breakers, one a main service disconnect in the main panel, and another one, also in the main panel but powering a subpanel that is located elsewhere.

Looks like 2 100 amp subs are being fed from this.
Was this the case?

Depending on the loads from both subs combined, could it not potentially draw more than the 125 amps rated on the panel itself?

Was there another OCPD rated for 125 amps or less between this panel and the meter?

lol…ok RRay…dispite what you may think…I do have a electrical contracting business to run…and I am swamped so the GURU’s do have other jobs…lol

I see other problems in this enclosure…but I will answer the question because I have to be at a job site this AM to meet with builders.

1.) While the enclosure is RATED for 125A that would be it’s size…even if (2) 100A breakers exist…

However if the service coming INTO the enclosure is also going to count for something…remember the weakest link here…

Now…my problem is not the (2) breakers…but what is the calculated LOAD on this setup…we simply can’t determine if the enclosure is undersized only based on the (2) 100A breakers…without a load calculation…

How often do you find a 200A panel with (2) 60A Breakers, (15) 15A Breakers, (7) 20A Breakers and (2) 30A breakers…now you do the math…it simply is not calculated on adding up the numbers alone as we have deversified loads to consider and allowances made by the NEC regarding service size and calculations.

With that said…I truly would LIKE additional information on this…what are the 100A breakers feeding?

What are they labeled as?

Any additional images before I make additional comments on the (2) 100A breaker issue…I have plenty to say on it but would like more information on the total picture.


I did not want to go into those issues until more info was posted but yes if the meter is lets say a 100A rated meter can…and the potential here is for more…it would be an incorrect installation…

But again has alot to do with the calculations and defined loads on these situations…

We can only ASSUME they feed (2) 100A subs because of not enough information on the entire setup…

Included is the bottom of the main panel… but thats all the pics I have…

Now granted I do not have a full understanding of this situation by Im not completely in the dark when it comes to electrical.

There were two sub panels, one was original and one was added to run power to a shed, the original panel was bonded and ran everything to the home. The added panel had 2 20amp breakers in it and was not bonded.

Hope this helps…

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Tim - what exactly are you trying to report?

Generally, we report on the service “capacity,” not the service system “rating.”

The lowest “rated” component gives us the “capacity.”

In this case, there is no single switch or disconnect, so you would rely on the size of the service entrance conductors and the rating of the panel to determine the “capacity.”


Never said you were " In the Dark"…was only trying to educate and assist…

Go with Jeff’s method…Conductor Size and Panel Rating to conclude Capacity