Does this chart indicate that he maximum breaker allowed is a 30 amp?
- Thread starter wazzabie
- Start date
Cruzan80
Well-known member
Isn't this the same panel that you want to run a new circuit for your compressor on? You said you already have a 50A circuit on there ...
I don't see any place on there listing a 30A limit.
I don't see any place on there listing a 30A limit.
Steve W.
Well-known member
Just to the right of the main breaker on the diagramn, it says
"Do not install greater than a max of 200 amp connected load per tab"
.
"Do not install greater than a max of 200 amp connected load per tab"
.
gleman
Well-known member
Are you looking at this?
Thats single phase and three phase. not 10-30
Yep, the combination of threads from OP is a clear indication he needs a pro
I thought that could have meant the entire side could not have totaled 200amps if the breakers were added.Just to the right of the main breaker on the diagramn, it says
"Do not install greater than a max of 200 amp connected load per tab"
.
JohnX14
Well-known member
It does mean that, sort of. It means the total of each bus, (every other breaker top to bottom) can't exceed 200 amp load. Which is different than adding up the breaker sizes.
I found an error that both the electrician and inspector failed to catch over 10 years ago. The electrician installed a Siemens breaker into the Silvana panel. While the break did fit it is not correct. Eaton has the sole ownership of the breakers for this vintage panel.
So I need to pull the breaker the electrician and inspector failed to catch and replace. I also need to pull the three Siemens I installed and replace those breakers in more recent years. I'm hesitant to do this because the bus bar is scored anytime a breaker is removed and replaced.
JohnX14
Well-known member
While the Siemens isn't listed for use in the Sylvania panel, I wouldn't lose sleep if it were in my house.
No.
It means each STAB's (horizontally installed) cbs can't exceed 200a load.
Chuckster in NJ
Well-known member
Hey OP, Call a licensed electrician because your loss may be more than just financial.
manwithtools
ALLIANCE MEMBER
You NEED to call a pro...
Scored?
Scorched?
Not exactly 100% sure what you're saying here but you need to call a pro and possibly have your panel replaced
whateg01
Well-known member
That "per tab" bit means that each tab cannot exceed 200A. If it meant that "the entire side" couldn't exceed 200A, it would say something like "per bus". But it doesn't.
sparky 1971
Well-known member
Says who?
Using another manufacturers circuit breaker in the wrong panelboard violates NEC® 110.3(B) and violates the product listing.
Not even. A bus alternates between each horizontal row.
Unless the panel manufacturer has listed the panel to include other mfr's cbs. (highly unlikely)Using another manufacturers circuit breaker in the wrong panelboard violates NEC® 110.3(B) and violates the product listing.
However, a mfr different than the panel mfr can have their cb's classified to be used in another mfr's panel.
My assumption is that every time a breaker is removed that a groove in the metal will remain. This is a logical assumption as the electrical contactors are a metal to metal contact.
whateg01
Well-known member
Good catch on me misstating that!
I'm considering calculating a load calculation for the panel. https://elecalculator.com/calculator/motor/load-calculator/
out of the pepper.Keep going........time to shut this thread down.
Per Eaton
This is what I thought meant not to exceed 10-30 amp breakers.
Are you looking at this?
Thats single phase and three phase. not 10-30
Why? Do you think you've over loaded it?
The panel is good good for 200A. Not very likely you're over that unless possibly you're running a large full house of electric baseboards or something.
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I have no reason to believe I'm over load. I want to know what the calculations are for my own knowledge. I have some doubts about the work of the electrician and inspector performed since they both approved using a Siemens breaker rather then the Eaton. I would rather learn so that I personally know the work is correct.
The panel is not burned. Not sure why the panel would need to be replaced. It is not part of the Zinsco panel issue.
Chuckster in NJ
Well-known member
THIS ^ is why the OP should not be "playing" electrical contractor.
TIP! Step away from the panel and call a professional before you really F things up or kill youself.
Cruzan80
Well-known member
If you think the bus bars are "scored" aka. damaged, that would be an indication of a new panel being needed.
As others have said, this seems like a classic case of "book knowledge" exceeding your ability in the real world to accomplish things safely.
wyliesdiesels
Well-known member
nope it says STAB, meaning where the breakers connect, not the entire bus.
wyliesdiesels
Well-known member
what?
there shouldnt be any scoring when installing and removing a breaker. there is nothing inside the breaker clamp that could score the stab on the bus bar
wyliesdiesels
Well-known member
so then you missed the Ø symbol
JohnX14
Well-known member
You're right.
But the rating of the panel is limited to 200 amps as well. (0r 225) This panel can't be fed with 400 amps and pull 200 on (2) stabs on the same leg. But I get it, that's not what I
Edit: deleted a statement that I realized wasn’t accurate
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JohnX14
Well-known member
There are lug kits that I’ve used on Eaton BR load centers that allow me to pull 200 amps to a subpanel. So yes I agree it’s 200 per stab.
It's clearly written on the label, not sure what there is to agree with....
This thread is ridiculous