Bad 1200 amp main OCPD options

[electrofelon]

Dimensional drawings of internal bus work is not part of the official record for that product line.
There is a lot more customized bussing required in the 'main device' section of that gear than people think. In the old days, all of the interior bussing was left entirely up to the fabricator.

That is very interesting, could you elaborate on that? Do you mean that the main section bussing was made on a case by case basis essentially and not "mass produced"? Even if so, the main breaker bolting pattern is all the same and I am surprised that they haven't run into this situation enough times where they would have a "kit" ready to go.

 

[jim dungar]

That is very interesting, could you elaborate on that? Do you mean that the main section bussing was made on a case by case basis essentially and not "mass produced"? Even if so, the main breaker bolting pattern is all the same and I am surprised that they haven't run into this situation enough times where they would have a "kit" ready to go.

The bolt patterns may be the same but the physical location of the run backs and incoming lug pads often get tweaked with each different breaker and metering setup.

 

[electrofelon]

The bolt patterns may be the same but the physical location of the run backs and incoming lug pads often get tweaked with each different breaker and metering setup.

So I say I were to get a rebuilt breaker, is there a likely chance that it wouldnt just bolt in without tweaking?

 

[jim dungar]

So I say I were to get a rebuilt breaker, is there a likely chance that it wouldnt just bolt in without tweaking?

Yes, it would fit 'perfectly'. The tweaking is only when they go from the PA frame to a new R frame.