120V, 3 Pole, Multi Branch Circuit

[Saimon]

Hello,

This question requires a little bit of electrical distribution knowledge in order to make sense of it, but here it goes!

I'm trying to make a "Multi Branch Circuit" that has three 120V circuits with a Shared neutral. Per NEC 210.4(B), the three circuits need to be simultaneously disconnected at the point where the branch circuit originates; meaning at the panel board circuit breakers.

To accomplish this, I want to make a 3-pole circuit; which would result in a 3 pole breaker shown on the Revit panel board schedule. The problem with this is that Revit will not let you create a 120V, 3 pole circuit because it thinks that I'm making a three phase circuit which has a voltage of 240V or 208V.

Has any other electrical engineer come across this problem or even thought about this before? I've drafted something to attempt to describe in pictures what I'm trying to do, please see the attachment.
Thanks for any input,



Simon