3 Phase Receptacles

[tkman]

Hey guys. I have a quick code question. We are doing the design for a factory in NYC that will be using many 3 phase sewing machines. These machines are using a nema L15 type receptacle. The fla for these machines is 3.1A. The electrician doing the job is claiming that for three phase machines all circuit breakers most be dedicated and are not allowed to feed multiple receptacles. I have looked through the NEC and could not find anything that says this but was wondering what you guys thought. I heard their is something on this in the old nyc building code but I am not sure. Any help would be appreciated. Thanks.

 

[raider1]

Welcome to the forum.

There is nothing in the NEC that requires 3 phase receptacles to be installed on an individual branch circuit.

210.23(A)(1) & (2) deals with multiple loads on a 15 or 20 amp branch circuit.

Chris

 

[ron]

There is no change in the NYC version of 210.23 either.

 

[icefalkon]

How many do you plan on putting on a circuit?

 

[wawireguy]

Next time skippy(your electrician) tells you something like this ask him to send a code reference over to you.

 

[icefalkon]

Perhaps the journeyman misunderstood what you wanted to do...or he's just never done this type of installation before.

 

[480sparky]

..........or he's just never done this type of installation before.

That's entirely possible.

Most industrial and commercial settings have job specs that require dedicated circuits for 3-phase equipment.

 

[tkman]

Great, thanks for the responses guys. I didnt think their was a requirement for this but it didnt sound that far fetched. We will likely end up doing 5/circuit.