Until recently, digital switching has only been available on new, higher-end boats. Today, quite a few systems are on the market for used boats, with more coming. This means that even if you’re not getting a new boat, you can still get a new digital-switching system.
Digital switching is a networked way of replacing conventional DC mechanical circuit breakers and switches. The digital systems are programmable, offering the benefits of automation. They also reduce weight, and place the boat’s switching into a weather-sealed, highly reliable package.
With traditional DC switching and power distribution, there’s a centralized electrical panel with large cables from the boat’s batteries. For each circuit, there is a wiring run from the panel to the point of use. On my boat, this means loads like the freshwater…