Ring Terminal on Terminal Block Sizing
Ring Terminal on Terminal Block Sizing
(OP)
So this is an odd issue, one that only the Gov't could create.
I landed new #12 wire on a terminal block using ring terminals. The terminal blocks were existing equipment and had #6 studs. The ring terminals I used are for 10-12 GA wire and have a #8 hole.
I am being told by the Gov't that this does not meet NEC requirements and that I must redo all of my connections (several hundred) using ring terminals that have a #6 hole.
I have never seen a 10-12GA ring terminal with anything smaller than a #8 hole. The connections are tight and everything fits nicely.
Anyone have any idea if there is a section in NEC that says what I am doing is wrong?
I landed new #12 wire on a terminal block using ring terminals. The terminal blocks were existing equipment and had #6 studs. The ring terminals I used are for 10-12 GA wire and have a #8 hole.
I am being told by the Gov't that this does not meet NEC requirements and that I must redo all of my connections (several hundred) using ring terminals that have a #6 hole.
I have never seen a 10-12GA ring terminal with anything smaller than a #8 hole. The connections are tight and everything fits nicely.
Anyone have any idea if there is a section in NEC that says what I am doing is wrong?






RE: Ring Terminal on Terminal Block Sizing
I am unaware of an NEC statement about this but I do know this:
12AWG / #6 hole
Keith Cress
kcress - http://www.flaminsystems.com
RE: Ring Terminal on Terminal Block Sizing
Thanks.
Bill
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"Why not the best?"
Jimmy Carter
RE: Ring Terminal on Terminal Block Sizing
RE: Ring Terminal on Terminal Block Sizing
@itsmoked, thanks for the link, I did find them after looking. I usually grab my ring terminals off of McMaster or from a Fastenal and they didn't show any listed.
@waross, they are referencing the blanket NEC section 110.12 which covers workmanship. It doesn't clearly state that the ring terminal I am using is an issue. The connection looks fine and is tight, nothing has been manipulated to get the ring terminal installed on the block.
@TugboatEng, The #12 wire is a requirement per the contract. I agree #14 would be fine and #6 studs are more common in this wire size.
I am contacting the terminal block manufacturer and sending them a datasheet of the ring terminal to see if they will agree that it can be used without any issues. Hopefully this will appease the Gov't.