Connecting multiple evaporators on same branch circuit?

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cppoly

Senior Member
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New York
I can't find the section in article 440 for branch circuit short circuit and ground fault protection for connecting multiple AC units on the same circuit. So is this even allowed?

If I there's four indoor evaporators that draw very little current (1.5 amps each), it would seem wasteful to have to run individual branch circuits to each unit. I know article 430 allows multiple motors on the same branch circuit or feeder circuit.
 
ptonsparky

ptonsparky

Tom
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EC - retired
cppoly said:
I can't find the section in article 440 for branch circuit short circuit and ground fault protection for connecting multiple AC units on the same circuit. So is this even allowed?

If I there's four indoor evaporators that draw very little current (1.5 amps each), it would seem wasteful to have to run individual branch circuits to each unit. I know article 430 allows multiple motors on the same branch circuit or feeder circuit.
Click to expand...

Do you want all your evaporators to stop because of one failure?
 
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cppoly

Senior Member
Location
New York
They're for small offices so it wouldn't be a concern if a few offices fail together.

Not sure if I follow on the lugs point. Just one set of conductors would come out of the breaker and a junction box would be at each unit to tap these branch circuit conductors.
 
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jap

Senior Member
Occupation
Electrician
I'd put all 4 on a single 20a circuit, not give it a 2nd thought, and, let em rock and roll.

JAP>
 
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