One of the things on my list is to replace the main breaker in the AC side of the electrical panel. It trips every time I reconnect the shore power and being that I'm leaving the batteries in the boat this year I don't want to have to climb inside and reset that breaker every time I plug in the cord to run the charger. I bought a nice 30 amp Blue Sea breaker that looks like every other marine breaker figuring that would work fine. This past weekend I opened up the panel to find something I have never seen before. Never saw so many wires to one breaker in my life. It appears to be a triple wide breaker with hot, neutral and ground connected, a jumper between two posts, a light showing power to the panel and a reverse polarity indicator with a test switch all connected. I saw nothing like this in any of my catalogs or on the Blue Sea website. Any thoughts on what I should be searching for??