AC system schematic

At some point in her history, Molly's 120-volt AC system underwent changes from the original factory configuration. Instead of a single 30-amp service at the helm distribution panel, her AC loads were relocated to the forward cabin closet and a second 30-amp service installed. The two 30-amp breakers - each with its own shore power inlet, naturally - supply a main AC distribution panel, with the AC house loads split between the two 30-amp services. Additionally, a separate panel with two 30-amp breakers feeds power from the generator into the boat's AC system when she is disconnected from shore power. Two three-way switches at the helm control AC power coming into the boat, ensuring that shore power and generator power can not be selected simultaneously.

Admittedly, when we first got to know Molly, this system was baffling. Now I think we've sorted it out. I'm no electrical engineer, so forgive my crude schematics.


Rather than AC breakers at the helm station, Molly's breakers are located on a panel in the forward cabin closet, which is hardly convenient, but at least it's updated and, hopefully, safer.

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