Quote:
Originally Posted by k1vsk
If you routinely connect/disconnect with the power on, internal arching inevitably can occur causing the burn marks in your picture. As you can imagine, the instantaneous connection/disconnect, particularly if the conenctor pins are dirty, can arch. I don't know if you do this but I've seen many people do it and, correctly or not, I attributed their failed connectors to that process.
It's always a good habit to first shut down the breaker before disconnecting.
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K1,
When you say "shut down the breaker", are you referring to the shore power breaker in the boat, or out on the dock? I always shut down the breaker in the boat, but have never shut down the breaker at the dock. In all honestly, it never occurred to me that I should do that...