50A GFCI breaker trips for nothing

[Nikon201068]

Hi. I finally got my 50A GFCI breaker installed (swapping out the non-GFCI 50A breaker) by an electrician two days ago. It is from my main panel and run directly to the 14-50 outlet. I don't know why it keeps tripping every now and then for doing nothing ( nothing is plugged in and we are not even running thing more than usual in the house). I have the MC connected to it. I asked the electrician and he said this

 

[appleguru]

That is what I said. I’ve not seen a evse without a gfci incorporated…. But I’m sure one exists

GFCI is required for UL / ETL certification, so any that exist without it are not listed or tested with a NRTL..

 

[ATPMSD]

@Nikon201068

There is a problem with the breaker or the wiring, or the outlet or there is moisture somewhere. Here is one link, but google to learn more.

Understanding GFCI Nuisances | Henderson Engineers

Since the expansion of the 2017 National Electrical Code (NEC) ground fault circuit interrupter (GFCI) requirements to include single-phase receptacles up to 50A and three-phase receptacles up to 100A, we’ve seen a trend of increased ...

www.hendersonengineers.com

 

[joshgekko]

I’m assuming it’s a 5mA trip GFCI. Is a 30mA trip breaker an option in your location? My electrician will not install 14-50 outlets for EVSE for this reason. Hard wired doesn’t need GFCI but plug does.

Has switching to a 30mA breaker worked for you guys? I have 2 EVSE's (Gen 2 UMC for the Tesla), but the Tesla UMC is the only one that ever trips the breaker.