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Rahim84

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Good afternoon, I have a few questions for the pros.
I have a GE panel with a 30 amp Eaton breaker.
Question number 1 :Are they compatible

Question number 2: can a #12 romex wire be connected to this 30 amp breaker, which is dedicated for a heat pump

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Also the electrician who scored these feeders dig into the conductor pretty significantly, how much of an issue is this in your best opinions
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#1: Not sure.
#2: In the case of a heat pump, as a motor-containing unit, there should be both an MCA (Minimum Circuit Ampacity) and an MOCP (or MF if fuse only) specified on the unit label/plate. There is a motor exception to the minimum wire size rule which could apply here. If #12, as installed with any applicable derating, can carry the MCA Amps, and the MOCP is 30A or greater, then #12 on a 30A breaker is OK.
 
Romex fails outdoors, not listed for wet locations, or underwater conditions due to condensation buildup inside conduit.

Eaton Type CL breakers (ie) CL240 have been specifically Classified for other equipment, including GE Q-Line.

Classified Circuit Breaker – a breaker that is considered suitable, by Underwriters Laboratory, for use in place of the specified circuit breaker.

The lack of a separate grounding bus from Neutral Bus is OK here, if it's not a sub-Panel
 
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Couple of things I notice..

I think the compatibility question has been answered.

The feeders don't look too damaged and at 4/0 there is plenty of wire there to be ok but I don't see a conductor oil or grease on the wire or lugs which may cause issue later on.

Second the lugs don't look tight enough and may not have been torqued down properly.


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Yes they do have Nolox on there, even tho it’s hard to see.

But I don’t know the answer to the breaker question. I see the responses but I’m not sure of a clear answer


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Rahim84 said:
Yes they do have Nolox on there, even tho it’s hard to see.

But I don’t know the answer to the breaker question. I see the responses but I’m not sure of a clear answer


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Yes the breakers are compatible in this panel even though they are different brands.

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JMWElectric said:
Couple of things I notice..

I think the compatibility question has been answered.

The feeders don't look too damaged and at 4/0 there is plenty of wire there to be ok but I don't see a conductor oil or grease on the wire or lugs which may cause issue later on.

Second the lugs don't look tight enough and may not have been torqued down properly.


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And I’ll double check those lugs to make sure they’re tight, btw I didn’t do this job.


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Only things I am seeing that are wrong are the deep scoring when stripping the aluminum feeder conductors and no bushing on the feeder conduit fitting.

The 12-2 sure looks like UF cable to me. Posted nameplate has less than 20 MCA and MOCP of 30. 12 AWG on a 30 amp breaker is fine here.

Anti-oxidation compound isn't required on modern aluminum conductor alloys. Doesn't hurt to use it either though, some do because that is what they have always done, some of them still think it is required on all aluminum terminations, but that is not true.
 
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