Marinco Straight Adapter, 30A Male - 15A Female

The Marinco Straight Adapter, 30A Male - 15A Female (model S30-15) is an essential piece of shore power infrastructure for any boat owner managing multiple dockside receptacles or power sources. After years on the water, you'll recognize this adapter as the solution to one of boating's most common frustrations: incompatible electrical connections between your vessel's inlet and the available shore power configuration. Whether you're transitioning between different marinas, upgrading dock infrastructure, or connecting to temporary power sources, this adapter bridges the gap between 30-amp male connectors and 15-amp female receptacles.

Marinco engineered this adapter with an ergonomic EEL-style design that prioritizes durability and reliability in harsh marine environments. The power-on LED indicator confirms proper connection status, eliminating guesswork when plugging in—a feature that prevents potentially damaging miswiring and provides instant visual feedback in low-light dock conditions. The straight-through configuration minimizes stress on the connector itself and allows for cleaner cable routing along your boat's exterior, reducing trip hazards and extending the lifespan of both the adapter and your shore power cord.

This adapter is indispensable for cruising anglers and liveaboards who frequent different marinas with varying electrical standards, as well as boaters installing new auxiliary equipment that requires different amperage configurations than their primary inlet. The compact 4 x 3 x 8-inch footprint and 0.5-pound weight make it easy to keep aboard as a backup, ensuring you're never stranded without power connectivity. Installation is straightforward—simply insert the 30A male end into your dockside receptacle and connect your boat's power cord or equipment to the 15A female outlet, and you're ready to power essential systems with confidence.