Multiwire branch circuit disconnecting means

[Knuckle Dragger]

This has probably been beaten to death.
I recently replaced a 200 amp single phase residential panel. The panel had multiple multiwire branch circuits, at the time, (FWIW none of which terminate on a common yoke).
I couldn't get enough pole breakers so I installed two single pole CB's with a nail for a handle tie for each MWBC. (I've never had an issue with this in the past)
The inspector is insisting I replace the single CB's with two pole CB's.
I told him I shouldn't have to replace them. I mentioned 210.4 (4) (it has a simultaneous disconnect) and 240.15 (B)(1) (two single-pole individual breakers, with identified handle ties) I'm not quite sure what is meant by identified handle tie it's pretty self explanatory as is.
His argument is that it won't trip simultaneously, which I can also see his point.
Bottom line: Am I wrong?

 

[Dennis Alwon]

2 sp breakers with a nail is not compliant however if you used handle ties listed for the panel then you are correct. The section does not require a common trip,

The information notes says to use 240.15(B)

(B) Circuit Breaker as Overcurrent Device. Circuit breakers
shall open all ungrounded conductors of the circuit both
manually and automatically unless otherwise permitted in
240.15(B)(1), (B)(2), (B)(3), and (B)(4).
(1) Multiwire Branch Circuits. Individual single-pole circuit
breakers, with identified handle ties, shall be permitted as the
protection for each ungrounded conductor of multiwire
branch circuits that serve only single-phase line-to-neutral
loads.

 

[Knuckle Dragger]

2 sp breakers with a nail is not compliant however if you used handle ties listed for the panel then you are correct. The section does not require a common trip,

The information notes says to use 240.15(B)

That's what I thought, but not what I want to see
IMHO a well fitted nail functions better than any aftermarket handle tie, but rules is rules.
It's still less expensive than replacing the circuit breakers.
Thank you for your quick response!

 

[jap]

That's what I thought, but not what I want to see
IMHO a well fitted nail functions better than any aftermarket handle tie, but rules is rules.
It's still less expensive than replacing the circuit breakers.
Thank you for your quick response!

They have to enforce an "Identified" handle tie, otherwise it would leave too much open to interpretation.
The nail may in fact be more robust, but, some may use other things such as, tie wire, a tooth pick, a piece of #12 solid, a binding clip, etc...

JAP>

 

[Knuckle Dragger]

They have to enforce an "Identified" handle tie, otherwise it would leave too much open to interpretation.
The nail may in fact be more robust, but, some may use other things such as, tie wire, a tooth pick, a piece of #12 solid, a binding clip, etc...

JAP>

FWIW,
Why not use the word listed.
Identified is ambiguous.

 

[don_resqcapt19]

FWIW,
Why not use the word listed.
Identified is ambiguous.

Identified is a defined term in Article 100. Not sure there is even a listing standard that a handle tie could be listed to.

 

[Knuckle Dragger]

Identified is a defined term in Article 100. Not sure there is even a listing standard that a handle tie could be listed to.

Got it.

 

[Hoodood]

I had a situation where we added circuits to an existing panel. This panel was all MWBC w/ no ties or 2poles. We installed same but used a 2 pole breaker. Inspector made us use only OME (original breaker manufacture equipment) ties on the existing circuits in order to pass inspection. He stated "You go in it, you own it"

 

[infinity]

His argument is that it won't trip simultaneously, which I can also see his point.
Bottom line: Am I wrong?

He is wrong. Simultaneous tripping has nothing to do with the simultaneous disconnecting requirement for a MWBC. That is the reason why handle ties are permitted in the first place.

 

[roger]

As Infinity says the inspector was wrong and needs to read what the words in the section say

Roger

 

[nickelec]

I had this same discussion with an inspector the other day actually an argument he tried to tell me that handle ties are required on twin breakers especially in older homes he actually went as far to say that all breakers should be tied together because in older.homees we " don't know what neutrals are tied together with Wich circuits" I really didn't even know what to say it was clear no amount of explanation would make him understand how stupid he actually was

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