First Time EV Owner - New Emporia Classic at 48A. Is this too hot?

[flyct]

He agreed to do it with THHN in conduit & then did it in the exact way you'd asked him not to? And you paid him? Was the work being done without permits?

Not my house.

It was permitted. It was part of a new construction home where the home owner acted as his own GC. The electrician was hired by home owner as a sub contractor to do ALL the wiring.

The homeowner made several mistakes where things needed to be torn out and redone because of his lack of knowledge.

It is NOT my house, not my electrician. I was just advising a friend who asked for advice to install a EVSE for his new Lyric in his house under construction. Total electrical bill was over $30,000

After wiring was run before drywall was up he called me. I had him check the cable markings and it was NM-B, not SE. I told him to have the electrician rerun correct cable. He didn’t want the confrontation or perhaps expense to correct it and said it’s good enough.

If it were my home I with have insisted on tearing the NM-B out and rerun it with either 6-6-8 SE Copper or THHN in conduit.

All electrical work passed inspection and he’s now living in the house with a 50 amp. EVSE charging at 40 amps.

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[123XYZ]

Not my house.

It was permitted. It was part of a new construction home where the home owner acted as his own GC. The electrician was hired by home owner as a sub contractor to do ALL the wiring.

The homeowner made several mistakes where things needed to be torn out and redone because of his lack of knowledge.

It is NOT my house, not my electrician. I was just advising a friend who asked for advice to install a EVSE for his new Lyric in his house under construction. Total electrical bill was over $30,000

After wiring was run before drywall was up he called me. I had him check the cable markings and it was NM-B, not SE. I told him to have the electrician rerun correct cable. He didn’t want the confrontation or perhaps expense to correct it and said it’s good enough.

If it were my home I with have insisted on tearing the NM-B out and rerun it with either 6-6-8 SE Copper or THHN in conduit.

All electrical work passed inspection and he’s now living in the house with a 50 amp. EVSE charging at 40 amps.

Got you.

Sorry for my misunderstanding.

 

[Kakaratto]

Just got my Ford Promise charger installed (Emporia Classic hardwired for 48A). During install they told me they planned to install 6/2 romex and I told them they can't for full rating on 60A breaker so they agreed to switch to MC cable.

I am doing a charge from 70% to 100% (road trip tomorrow) and checked on it about every 15 minutes. I noticed the cable and breaker were getting warm. At about 1 hour in I took some temperature readings. The breaker was about 122F at the surface of the breaker and the cable was about 123F where it was sitting wrapped around the charger.

Two questions:

1. Is the 60a breaker getting too hot?
2. Is the cable getting too hot?

I read the Emporia manual it doesn't specifically say the cable needs to be unwound during charging, but it might make sense (although a huge nuisance) to unwind it.

Garage ambient was probably 73F.

What is everyone else seeing?

I checked my emporia charging cable the other day when my truck was charging at 48a and the cable was showing 95°F. It was warm to the touch but not hot.

 

[25StarWhiteLightning]

I checked my emporia charging cable the other day when my truck was charging at 48a and the cable was showing 95°F. It was warm to the touch but not hot.

Thanks. Can you share your ambient temp, how long you were charging, and if your cable was wrapped around something or stretched out?

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