Hello,
I cannot find the code that supports the allowable usage of a 1P 20A circuit on a 2P 20A Breaker.
Situation: Customer has existing 220V 20A 2P equipment. Customer's equipment installer removes one leg from the existing 2P 20A breaker and re-tapes, re-labels one wire as a neutral and lands on the neutral bar. The equipment is hardwired. Customer's equipment installer re-labels the same wire as a identified neutral (same as in the panel) and lands it on the neutral connection in the equipment. The existing 2 Pole breaker now has one leg being used as a hot and nothing on the second leg. The Customer's equipment installer tells the customer that he has it wired to work but it isn't to code because it is being fed by a 2P breaker and it should be switched to a 1P 20A Breaker.
Customer calls me, I go look and see what has happened and I explain to the customer that it is legal per code (I'm fairly certain) but it is simply wasting a potential space in your panel. I told them I'd cite the code but I cannot find anything 100% like it.
NEC - 240.15 Ungrounded Conductors
(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), (B)(4).
I'm not violating this, is that what I can cite to be in compliance?
I cannot find the code that supports the allowable usage of a 1P 20A circuit on a 2P 20A Breaker.
Situation: Customer has existing 220V 20A 2P equipment. Customer's equipment installer removes one leg from the existing 2P 20A breaker and re-tapes, re-labels one wire as a neutral and lands on the neutral bar. The equipment is hardwired. Customer's equipment installer re-labels the same wire as a identified neutral (same as in the panel) and lands it on the neutral connection in the equipment. The existing 2 Pole breaker now has one leg being used as a hot and nothing on the second leg. The Customer's equipment installer tells the customer that he has it wired to work but it isn't to code because it is being fed by a 2P breaker and it should be switched to a 1P 20A Breaker.
Customer calls me, I go look and see what has happened and I explain to the customer that it is legal per code (I'm fairly certain) but it is simply wasting a potential space in your panel. I told them I'd cite the code but I cannot find anything 100% like it.
NEC - 240.15 Ungrounded Conductors
(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), (B)(4).
I'm not violating this, is that what I can cite to be in compliance?