Can someone offer advice as to how to wire a lighting arrestor to protect a well. I have a delta lighting arrestor and it is unclear how to make the connections. the instructions say "connect to the breaker". The lightning arrestor has 2 black wires, a single white and a green. Does this mean I should double lug the blacks under the same breaker that goes out to the well? If this is the case, I am confused as to how wiring the arrestor in parallel wil protect the surge from damaging my panelboard.
Any advice would be appreciated.