Marinco Heavy-Duty 63A Female Shore Power Plug (230V, 3-Wire Connector)

The Marinco heavy-duty 63A female plug is the cable connector you need to attach your shore power cord to your boat’s 63-amp inlet. As an integral part of the shore power system, it is engineered to provide stable and safe transfer of high current from the dock to your vessel’s electrical circuits. The plug’s body is made from a high-strength engineered thermoplastic that won’t corrode and can withstand impacts, pressure, and UV radiation – all critical for long-term service in marine environments. The internal contact sleeves are nickel-plated brass, ensuring a tight electrical connection with minimal resistance and no overheating even under full 63A load.

When engaging with the boat’s inlet, the plug fits snugly – it features rubber gaskets and often a locking ring or mechanism to prevent accidental disconnection and to keep water out of the contact points. Its design is ergonomic, with grip ridges or a handle that aid in gripping and twisting during hookup. This is especially important in wet conditions or when wearing gloves.

Usage and recommendations:

• Completing your shore power system: For optimal performance, this female plug should be attached to an appropriate marine-grade shore cable (e.g., 3 x 16 mm² copper conductors for 63A service). The opposite end of your cable typically connects to the marina power pedestal or an adapter. Using this plug ensures that the entire connection chain – from the dock to your boat – is Marinco standard, guaranteeing compatibility and safety.
• Made for professional use: The heavy-duty plug is built for repeated daily use. It’s ideal for professional crews, charter fleets, or boats living full-time in a marina where the shore power cord is frequently connected and disconnected. Its robustness reduces the risk of damage under intensive handling.
• Compatibility and safety: Compatible with all Marinco 63A shore inlets (for example, product codes 14.487.06 for single-phase and 14.487.09 for three-phase – note that the three-phase inlet uses the 4-wire version of this plug). Always shut off the dock power source before plugging in or unplugging. Ensure the connection is completely dry and clean; if any debris or salt is on the contacts, clean them gently to prevent arcing.
• Tip: Periodically inspect the plug’s seals and surfaces. Over time, rubber O-rings or gaskets can wear out – replace them as needed to maintain a high level of water ingress protection. Store the cord and plug out of direct sunlight when not in use to prolong the life of the materials.