NEC 625.54

[YNoVA]

Just found out that my charging setup is not code compliant due to NEC 625.54. My licensed electrician wasn't even aware of the code change.

For those unaware, if you use the Mobile Connector with a NEMA 14-50 the breaker must be a GFCI breaker.

Also for anybody that currently uses the Mobile connector with a GFCI outlet; do you have issues with the breaker tripping?

 

[Rocky_H]

There are dozens of threads on this. To help you find them, you can use a Google search to find them within this site:
Put this line into Google
GFCI tripping site:teslamotorsclub.com

 

[qdeathstar]

Just found out that my charging setup is not code compliant due to NEC 625.54. My licensed electrician wasn't even aware of the code change.

For those unaware, if you use the Mobile Connector with a NEMA 14-50 the breaker must be a GFCI breaker.

Also for anybody that currently uses the Mobile connector with a GFCI outlet; do you have issues with the breaker tripping?

As far as if it is required that depends on the state as some states are not enforcing nec 2020 yet.

 

[Rocky_H]

That requirement of GFCI breakers for EV outlets was started in the 2017 NEC, not the 2020 revision. 40 of the 50 states in the U.S. were already on NEC version 2017 or later as of this map updated in October 2021. I haven't found a newer reference than that in entire map form.

https://www.esfi.org/wp-content/uploads/2019/08/Full-sized-adoption-Map-October-2021.pdf

But this site lets you look up each state currently:

https://www.iaei.org/page/nec-code-adoption

 

[WindPower]

For those unaware, if you use the Mobile Connector with a NEMA 14-50 the breaker must be a GFCI breaker.

The reason for this is to avoid shocks when you touch the 14-50 plug, connector or housing (a shock which might be due to a broken wire or other malfunction inside the 14-50 assembly).

When you have a direct wired EVSE to power, then you don't need a GFCI to 'protect' the user since there is no plug/outlet which can be touched.

There is a GFCI inside the EVSE to protect someone when plugging the charging cord into the car.