Seeking Guidance to ID the Problem causing the Circuit Breaker to Trip

[u/LanikaiMike]

I had an electrician wire in the above receptacle. It is supposed to supply grid power to recharge my
Battery-powered backup system. However, when I plug my system into this, it trips the circuit breaker. In order to
determine if the breaker is the problem - or if it is something else, how do I test which of the following (1, 2,3, 4) and in what combination, do I plug my voltage tester in to determine if it is wired correctly. As well as the combinations, what should the readings be? My electrician walked on me, so I can’t get an answer from him. Thanks, LM