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This 4' adapter lets you connect your 30-amp twist lock shore power cord to a 30-amp SmartPlug outlet at the dock.
Features:
Specs:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello, everybody. This is Jeff at etrailer.com. Today, we're gonna take a look at this four foot long SmartPlug marine power cord. On this end, we have the 30 amp male SmartPlug. And on this end is the 30 amp female twist lock connector. Now, this cord will let you connect your boat to shore power with this SmartPlug system connector.
Now, the 30 amp female twist lock connector on this end is what will plug into your 30 amp male twist type inlet that's on your boat. And on the other end is the 30 amp male SmartPlug connector that'll plug into a 30 amp female SmartPlug connector on your dock at the dock side. I want to zoom in so you can see up close the connector. This SmartPlug right here, this will ensure a nice, solid connection. You can see it has a nice sleeve design, which will keep the weight and the tension off of the electrical pins, so the body of the whole plug bears the weight to keep the points of electrical contact secure.
They are straight-in connections of the SmartPlug male end, makes plugging in easy even in the dark. They do use triple weatherproof seals to prevent water corrosion and overheating. And the construction on this SmartPlug is the external metals are all a marine-grade 316 stainless steel, the electrical pins are a nickel-plated brass, and all the plastics are UV and heat resistant. The other end is your standard female twist lock connector. Has a threaded sealing ring for a nice weatherproof connection.
Now, you can see this whole cord is a nice, bright orange color for high visibility. And this part is made in the USA. Few specs on this, again, the length we mentioned is four feet, the amperage 30 amps, and the voltage is 125 volts. But that should do it for the review on the four foot long SmartPlug marine power cord. 30 amp male SmartPlug to the 30 amp female twist lock connector..
Ratings & Reviews
David
12/5/2025
Great, no problems.
Hugh
3/24/2025
Adapter worked great!
Jameson C.
3/24/2025
Info for this part was:
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Heather A.
4/10/2026
Thanks for pointing that out, and I can see how that would be frustrating. It sounds like your RV has a standard 30 amp inlet without threads, so the locking ring on this adapter doesn’t have anything to grab onto. It will still provide power, but it won’t lock in place. If you’re wanting a secure fit, we’ll want to match the adapter to the exact inlet style. If you can send a quick photo of your inlet, I can make sure you get the right one.