This protective cap is designed to keep your shore power plug dry, clean, and ready for use. When your boat is not connected to shore power, the plug is often exposed to the elements – the cap shields it from rain, sea spray, dust, and UV rays. The PVC material remains flexible and stable over a wide temperature range, meaning the seal stays effective in both hot summer sun and cold weather. The locking ring ensures the cap won’t come loose in wind or vibration – it stays firmly attached over the plug. Additionally, the cap’s bright color makes it highly visible – you won’t accidentally leave it behind on the dock, and it serves as a visual cue that the plug is not connected (a reminder that shore power is off).
- Ideal Usage: Perfect for any boat or yacht owner using shore power. Whether you’re docked at a marina or your vessel is stored on land, this cap protects your valuable plug from damage. It’s especially recommended for marine vessels left unattended for extended periods – with the cap in place, you avoid electrical mishaps from sudden rain or spray.
- Equipment Longevity: Keeping the plug’s prongs free from corrosion and oxidation means more reliable electrical connections and less frequent need for replacement. Investing in this cap saves money in the long run by preserving the functionality of your cables and connectors.
- Compatibility: The cap is designed to fit 30A plugs by Osculati and similar brands (standard shore power plug diameter). The included adapter ring makes it compatible with Marinco systems as well – for instance, if your boat’s inlet is Marinco-brand, the cap can latch directly onto it when the plug is removed, providing dual protection.
- Usage Tips: Always place the cap on your plug as soon as you disconnect the shore cable from the boat. Ensure the ring is snug – you should feel a light “click” when it’s fully engaged, without needing to over-tighten. Periodically, clean the inside of the cap and the sealing gasket of any salt or debris buildup to maintain optimal sealing performance.



