210.7 Multiple Branch Circuits

[mwm1752]

This spec sheet requires that if module is fed by 2- 2 wire branch circuits they are to be on the same phase. I would assume the neutral load for the module is only for led indicators & very minimal and the branch circuit neutrals are separated to respective switch legs being fed. Multiple modules can be in the enclosure
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https://www.control4.com/docs/produ.../latest/8-channel-dimmer-data-sheet-rev-e.pdf

Required yes/no
210.7 Multiple Branch Circuits. Where two or more branch circuits supply devices or equipment on the same yoke or mounting strap, a means to simultaneously disconnect the ungrounded supply conductors shall be provided at the point at which the branch circuits originate.

 

[Dennis Alwon]

IMO, they would need to be simultaneously disconnected. This is not really possible on the same phase. I would question the engineer on the specs and ask how you can comply with the NEC. Are you sure you need 2 circuits?

 

[mwm1752]

Denis, the requirement is stated on the module which has an ETL listing -- I find it odd but do I question a NRTL listing? the NEC requirement has no bearing on the listing IMHO

 

[Dennis Alwon]

Is this a single phase application? iF so then put 3 single pole breakers together with a 3 pole breaker tie

 

[roger]

I don't think this would fall under 210.7, if it did multi pole contactors would too and then we would have a major problem industry wide.

Roger

 

[infinity]

The photo shows Line 1-N-EGC and Line 2 with no neutral how does this work?

Also I don't see a yoke or a strap so forget 210.7.

 

[Dennis Alwon]

I agree-- my bad... no simultaneous disconnect needed.

I read this

Where two or more branch circuits supply devices or equipment

instead of the entire sentence

 

[mwm1752]

I agree-- my bad... no simultaneous disconnect needed.

I read this instead of the entire sentence

because you do not consider the module on the same yoke(like a receptacle) or strap?

yes 2 branch circuits both on the same phase

 

[mwm1752]

I don't think this would fall under 210.7, if it did multi pole contactors would too and then we would have a major problem industry wide.

Roger

very sensible example

 

[mwm1752]

The photo shows Line 1-N-EGC and Line 2 with no neutral how does this work?

Also I don't see a yoke or a strap so forget 210.7.

each branch circuit neutral has its own buss terminal - all switch leg neutrals will tie to the terminal of their branch circuit feed neutral -- the neutral tapped for the module is for the indicator lighting return current.