Your EVSE’s ground fault protection will trip at 20mA of leakage current to protect the equipment, not a person. That is not good enough to qualify as protectio

Your EVSE’s ground fault protection will trip at 20mA of leakage current to protect the equipment, not a person. That is not good enough to qualify as protection to personnel, you need a GFCI breaker that will trip at 5 mA of leakage current. Similarly, electrical switchgear can come with ground fault protection relays that trip at around 30mA of leakage current, which is enough to protect the equipment but not a person. Anyways, a 250V 50A 2P GFCI plug-in breaker is only about $120, that’s the cost of two 15A 1P GFCI/AFCI combo breakers.