GTE

Quote
When are tie handles between single pole circuit breakers not approved?

I want to be sure we know what your asking.

Dave T gave a good answer if the question is 'When can a handle tie be used?'

However I was wondering if your question is 'What is an approved handle tie?'

Alan

210.4(B) 2002
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210.4(B) Dwelling Units. In dwelling units, a multiwire branch circuit supplying more than one device or equipment on the same yoke shall be provided with a means to disconnect simultaneously all ungrounded conductors at the panelboard where the branch circuit originated.


All that section requires is a 'means to disconnect simultaneously all ungrounded conductors at the panelboard'.

Here is a handbook image which shows it much better than I could draw it.

[Linked Image]

IMO the handbook image is directly supported by the text of 210.4(B)



[This message has been edited by iwire (edited 04-08-2006).]

Bob Badger
Construction & Maintenance Electrician
Massachusetts