Electrical breaker getting warm

[DarkMatter]

This is a faulty breaker or panel. If it continues you will need to replace the panel. Continuous loads are some of the hardest ones on equipment.

 

[Ormond]

I replaced the bad breakers. I probably should get a new panel. I'm waiting until I get my Powerwall 2.0. In the meantime, I'm charging at lower amps.

 

[Oyinko]

I’m charging on a dryer plug (240v - 30amp) with a heavy duty extension cord. I did a first longe charge tonight for about 3h and checked the temperature of the line several times after and everything was cold. However the 30amp breaker on the panel went up to 109F. Is that expected? I’m charging at 24amp on the car.

 

[gilscales]

Challenger Electrical Panels Field Reports of overheating Challenger Electrical Panel bus & breaker components

 

[Kahukura]

I dont like charging at more than 32 amps. The charger cable gets warm even at 32 amps. I feel like its wasting some energy making heat.

 

[DarkMatter]

It doesn't take much energy to warm up the charging cables - in the range of tens of Watts will do it if sustained across hours. Do not worry about a warm cable wasting heat. It is certainly made up for by the reduction in charging overhead due to a shorter charging time.

But I would worry if the breaker gets more than a handful of degrees over ambient. Warm is okay, hot is not. It indicates a poor connection, and those tend to get worse across time rather than better.