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Hendrix

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Can't find the article that allows a 3 wire to be run to a 240vac circuit to take a 120vac off of one leg for, say, an a/c condenser to satisfy the 25' rule. :?:?
 
That's now a closed thread and I can see why:happyyes: I'm talking about a 20a, 240vac feeding a a/c condenser.
To comply with a receptacle being no more than 25' from the unit, can you run a 12-3, and use one leg and the neutral to satisfy the rule? They make pull out disco's that incorporate a GFCI within the enclosure. Just wondering what section it's in.
 
Hendrix said:
That's now a closed thread and I can see why:happyyes: I'm talking about a 20a, 240vac feeding a a/c condenser.
To comply with a receptacle being no more than 25' from the unit, can you run a 12-3, and use one leg and the neutral to satisfy the rule? They make pull out disco's that incorporate a GFCI within the enclosure. Just wondering what section it's in.
Click to expand...
As long as there is proper overcurrent protection on receptacle (many AC units have higher then a 20 amp breaker, even if allowed to have 12 AWG supply conductors) and the receptacle is not tied to the load side of the disconnect it is fine.

210.63 contains the 25 foot rule you mentioned as well as the requirement the receptacle not be on load side of the disconnect.

Otherwise multiple code sections apply, one that requires the neutral conductor to be run, one for overcurrent protection, multiwire branch circuit rules....just to name some that apply, there is no single section that only covers adding a receptacle to the AC circuit.
 
Hendrix said:
That's now a closed thread and I can see why:happyyes: I'm talking about a 20a, 240vac feeding a a/c condenser.
To comply with a receptacle being no more than 25' from the unit, can you run a 12-3, and use one leg and the neutral to satisfy the rule? They make pull out disco's that incorporate a GFCI within the enclosure. Just wondering what section it's in.
Click to expand...

I inspected an Eaton AC disconnect with a GFCI receptacle and it required a separate 120V circuit for the GFCI receptacle.
 
stevenje said:
I inspected an Eaton AC disconnect with a GFCI receptacle and it required a separate 120V circuit for the GFCI receptacle.
Click to expand...
Did it require a separate circuit or just individual conductors to land on the line side of the disconnect? Which is the general rule anyway unless the terminals are identified for multiple conductors.

If the supply is protected by a 15 or 20 amp OCPD, NEC allows the receptacle to be on the AC circuit
 
210.23(A)(2) Utilization Equipment Fastened in Place. The total rating of utilization equipment fastened in place, other than luminaires, shall not exceed 50 percent of the branch circuit ampere rating where lighting units, cord-and-plug connected utilization equipment not fastened in place, or both, are also supplied.

Unless the unit rating is less than 10 amps, it wouldn't be permitted.
 
dkidd said:
210.23(A)(2) Utilization Equipment Fastened in Place. The total rating of utilization equipment fastened in place, other than luminaires, shall not exceed 50 percent of the branch circuit ampere rating where lighting units, cord-and-plug connected utilization equipment not fastened in place, or both, are also supplied.

Unless the unit rating is less than 10 amps, it wouldn't be permitted.
Click to expand...

I agree.
 
kwired said:
Did it require a separate circuit or just individual conductors to land on the line side of the disconnect? Which is the general rule anyway unless the terminals are identified for multiple conductors.

If the supply is protected by a 15 or 20 amp OCPD, NEC allows the receptacle to be on the AC circuit
Click to expand...

It required a separate circuit for the GFCI receptacle. This was the first time that I had seen one of these disconnect/GFCI combo units.
 
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