Split bus panel?

Can any one determine if this is a split bus panel? I found no main disconnect nor was there another panel. Any help or thoughts would be greatly appreciated!

1 Like

Yes it is split bus.

It meets the 6 throw rule as pictured.

Agreed

Thank you, i was thinking the same.

It does not meet the 6 throw rule, upon closer inspection 2 single pole breakers are present in the first 12 spaces at the bottom right making 7 throws. Further, the breaker conductors seem to travel to the bottom most likely feeding the (or second) split section, thus the breaker would need to be double pole rather than 2 singles. See pic below:

Perhaps all is needed is handle tie for 6&7

Inspecting from pics is never a substitute for seeing up close and personal.

I agree, but it is unlikely the main section would not be contained to the first 12 1 inch breaker slots. Fortunately replacing the breakers (6&7) with a 2 pole version would be easy and put the 6 throw rule back in compliance.

Is this really a split bus panel? I can’t tell from these photos. It looks more like those conductors from breakers 10,12 exit out the back of the panel at the bottom.

2 Likes

The pic is hard to tell for sure.

We all need more info.

This video may be of help: https://www.youtube.com/watch?v=8dn1t5BBPIU

1 Like

From the looks of it this is a dual split buss panel, which would have two submains. Not as common as a single submain section but those beasties do exist.

Thank you, Martin. That would be the first one that I know I’ve seen…:slight_smile:

The pics aren’t the best but this may help:

Split Buss Panel - ECN Electrical Forums

http://www.nachi.org/forum/f19/double-split-bus-69578/

video was hepful

That panel dates from the very late 1970’s to early 1980’s, long after the heyday of split buss panels.