MWBC's

[jmd445]

Here we go again. I searched this forum and came up empty (maybe I didn't search well enough).

A MWBC serving a commercial kitchen 208V 3-phase 4-wire shared neutral. Do the three circuits need a common handle tie on the circuit breaker(s)?

Same for a 208V single phase 3-wire with a shared neutral serving appliances and general purpose receptacles.

Jim

 

[Pierre C Belarge]

Try Art 210

 

[George Stolz]

210.4(B) Devices or Equipment. Where a multiwire branch circuit supplies more than one device or equipment on the same yoke...

.......................

 

[infinity]

The answer is no.

 

[cpal]

don't forget 210.8B and 422.31

Charlie