The Marinco 50-Amp Wire Dockside Shore Power Receptacle is a 3-pole, 4-wire 125/250V fitting in a black glass-filled nylon body.
This is the dockside half of the connection rather than anything that goes on a boat, for a marina pedestal or a private shore power station. Three-pole, four-wire is the standard 50A marine configuration, with two hot legs, a neutral and a ground, which is what makes 125/250V split-phase service possible.
The glass-filled nylon body and face take moisture, salt, sunlight and repeated plug cycles, which is a harder life than the boat-side connector sees. A dock receptacle gets used by different boats several times a week rather than by one owner occasionally.
It needs installing in an appropriate weather-protected electrical enclosure rather than mounted bare. The receptacle itself resists the weather, but the wiring behind it does not, and that is where a poorly protected dockside fitting fails. Explore more shore power connectors.
- The dockside half, not a boat fitting
- 3-pole 4-wire: two hot legs, neutral and ground
- Built for a dock’s cycle count, not one owner’s
- Needs a weather-protected enclosure behind it
