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#222064 01/02/23 11:04 AM
Joined: Mar 2004
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BigB Offline OP
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Referring to the non-ctl twin breaker installed in this service equipment, is this a violation even though the six disconnect rule has not been violated? Secondly, would it be in violation to install a breaker upside down on top even though the equipment is designed as such?
(yes I see the doubled neutral/ground terminations)

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BigB #222065 01/02/23 01:42 PM
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I would be more concerned about the interrupting rating on the duplex breaker. I can't read the label. It might not be suitable as service equipment. There are extra holes, moving the neutrals is easy. To be able to use those empty slots, the panel needs to be mounted sideways.
Not a lot of wiggle room in 240.81

Quote
Where circuit breaker handles are operated vertically rather
than rotationally or horizontally, the “up” position of the
handle shall be the “on” position


Greg Fretwell
BigB #222067 01/02/23 07:20 PM
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Thanks Greg, I knew 240.81 didn't include any exceptions, I wonder how long they kept making that style after the code change which I understand was in the 70s. I hadn't thought about the interrupting rating.

BigB #222070 01/02/23 07:29 PM
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I looked and that is probably a Q2020 with a 10KA rating. That should handle most situations. (same as the 200)
As I said, you can install that so the breakers are horizontal and it would be OK. I wonder if the instructions say that?


Greg Fretwell
BigB #222071 01/02/23 07:30 PM
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Being that it's a 3R meter main I don't think that is an option.

BigB #222072 01/02/23 07:36 PM
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That does beg the question "how old is this"? I have an old GE panel like that but I suspect it was installed when they built my garage in 1970. Is there any guidance on the label about what breakers it supports in those top positions?


Greg Fretwell
BigB #222073 01/02/23 11:22 PM
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Are you asking about the open stabs above the single pole 20A, & the 2020 Twin? If yes they cannot be used under the NEC, since ON is required to be up on a vertically mounted breaker.

gfretwell #222075 01/05/23 04:11 PM
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BigB Offline OP
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Originally Posted by gfretwell
That does beg the question "how old is this"? I have an old GE panel like that but I suspect it was installed when they built my garage in 1970. Is there any guidance on the label about what breakers it supports in those top positions?
I haven't been able to get any more info, I am helping someone remotely. Not really doing work anymore except for family.

BigB #222078 01/05/23 05:58 PM
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Cat Servant
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A Sieman smain with mounting for Square D ? Don’t think I’ve ever seen that

Just a feeling, but that panel “feels” like it’s from the seventies.

BigB #222090 01/11/23 03:46 PM
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Reno:

Where do you get Sq D from??


John
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