Surge Guard: installed.
Had some demonstrable Knowitall remark about “code violations”: exposed terminals and being underneath plumbing without an enclosure.
I asked him to cite which codes applied…to this enclosed space inside the service cabinet of an RV.
Bless his little heart.
Although, in fairness, I should have some strain relief on the cable and could have done a better one-handed strip of the cable and conductors.