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2-pole or 3-pole circuit?

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ekrengel_apc
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2-pole or 3-pole circuit?

This was originally posted on APC forums on 5/19/2009


How do you tell if a circuit is 2-pole or 3-pole? Is that the number of slots it takes up on the circuit panel? Apparently an L6-30 is a 2-pole, 3 wire configuration of 30A 125-250V, and L10-30 is a 3-pole, 3 wire configuration of 30A 125-250V.

I have to make sure the 30 amp is an L6-30, and all it says on the receptacle is 30 amp 250v.

Thanks to anyone who can help.


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BillP
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Re: 2-pole or 3-pole circuit?

This reply was originally posted by Angela on APC forums on 5/19/2009


the number of poles in a breaker usually refers to the amount of phases its protecting against an overload of current.

an L6-30R generally is used for 208v or 240v and, yes, is a three wire connection - two phases of 120v each and a ground wire.

ive never heard of an L10-30R but maybe the attachment i will put on this post will help - well if you can see the outlet, you can see what it looks like and compare to this picture.

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BillP
Administrator Administrator
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110

Re: 2-pole or 3-pole circuit?

This reply was originally posted by Angela on APC forums on 5/19/2009


the number of poles in a breaker usually refers to the amount of phases its protecting against an overload of current.

an L6-30R generally is used for 208v or 240v and, yes, is a three wire connection - two phases of 120v each and a ground wire.

ive never heard of an L10-30R but maybe the attachment i will put on this post will help - well if you can see the outlet, you can see what it looks like and compare to this picture.

Attachments