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  1. Marine Power
  2. SmartPlug
  3. 30 Amp Female Plug
  4. Power Cord
  5. 15 Amp Male Plug
  6. 30 Amp to 15 Amp
SmartPlug RV Power Cord Adapter - 30 Amp Female to 15 Amp Male - 4'

SmartPlug RV Power Cord Adapter - 30 Amp Female to 15 Amp Male - 4'

Item # SM64FR
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Our Price: $174.25
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Marine Power
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Shipping Weight: 3 lbs
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This 4' adapter lets you connect your 30-amp SmartPlug cord to a 15-amp outlet at a campsite or residence. Fastest Shipping and Guaranteed Lowest Prices for SmartPlug RV Power Cord Adapter - 30 Amp Female to 15 Amp Male - 4'. Read our customer reviews of SmartPlug marine power. Call 800-298-1624 for expert service or order your marine power part number SM64FR by SmartPlug online at
  • All Info
  • Reviews (6)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

SmartPlug Marine Power - SM64FR

  • 30 Amp Female Plug
  • Power Cord
  • 15 Amp Male Plug
  • 30 Amp to 15 Amp
  • SmartPlug
  • 4 Feet Long
  • Orange

This 4' adapter lets you connect your 30-amp SmartPlug cord to a 15-amp outlet at a campsite or residence.


  • Adapter lets you connect a SmartPlug cordset to an outlet at a home or campsite
    • 30-Amp male connector plugs into your SmartPlug cordset
    • 15-Amp connector plugs into an outlet
  • Reverse Polarity Indicator System uses LED lights to let you know if it's safe to connect to shore power
    • Blue light means power is on and connection is safe
    • Blue and red lights mean neutral has been incorrectly wired, causing reverse polarity
    • Red light means ground is incorrectly wired
    • If both are off, there is no power
  • High-quality materials hold up in extreme climates or out on the water
    • Marine-grade stainless steel components hold up season after season
    • Nickel-plated brass electrical pins and tinned wires resist corrosion
    • Plastics are UV and heat resistant Valox 553U resins
  • Orange color
  • Made in the USA


  • Length: 4'
  • Amperage:
    • Female: 30 amps
    • Male: 15 amps
  • Voltage: 125 volts
  • 7-Year warranty

Reverse Polarity Indicator System

This SmartPlug connector features LED indicator lights that let you know if power pedestals have faulty wiring. It safely detects the presence of reverse polarity or open ground, two conditions that can cause a major electrical hazard and damage appliances. Now you can plug in your SmartPlug cordset to make sure pedestals are safe before connecting your RV or boat to shore power.

The connector uses blue and red LEDs to indicate the status of the connection. If only the blue light is on, power is on and you have a safe connection. If blue and red are on, the neutral has been incorrectly wired, causing reverse polarity. If only the red LED is on, a potentially dangerous ground condition is present. If no LEDs illuminate, there is no power, so check your connections. In the case of reverse polarity or open ground, disconnect your plug and notify management.

Reverse Polarity Indicator System

C15043 SmartPlug 30 Amp - RV - 04' Dual Config Cordset / (SPS x15Amp STD 115V Wall Plug)

Video of SmartPlug RV Power Cord Adapter - 30 Amp Female to 15 Amp Male - 4'

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of SmartPlug Marine Power - 30A To 15A Power Cord - SM64FR

Hello, everybody, this is Jeff at Today I'm gonna take a look at this smart plug, four foot long, 30 amp female to 15 amp male Marine power cord. Now this will let you connect your boat to shore power with this smart plug multi-point locking system connector. This is a 30 amp female connector and it's designed to plug into the smart plug inlet on your boat. Now, those inlets, we do sell separate on our website. I just wanted to pop up a insert to show you that's what the inlet looks like.

And this would plug right into that. And we do sell those separately on our website. And on the other end, here is a 15 amp wall plug connector. That'll plug in at your dock-side pedestal, or your extension cord. Now this does use the multi-point locking system right here.

You can see you just push both those in and ensures a nice, solid connection. So you push 'em to open it, plug it in release it. It'll lock it into place. The sleeve design on this will help keep the weight and the tension off of the electrical pins and the whole body of the plug bears the weight to keep the points of electrical contact secure. If you notice, there are straight-in connections of a smart plug female one which makes plugging it in very easy, even when it's dark out.

Does use triple weatherproof seals to prevent water corrosion and overheating. And the cable itself is a flexible, heavy duty, 10 gauge Marine cable. Now another, another nice feature on this plug at the very top. There's a L E D reverse polarity indicator light and it'll have two different lights. And basically what that does is when you plug this in it'll confirm the correct connection for you.

So if you plug it in and none of the lights come on that means there's no power at your connection. If you plug it in and a blue light is on, just the blue light is on, that means it's normal power. You're ready to go. If you plug it in, in both the blue and the red light is on at the same time, that means it's reverse polarity. You wanna disconnect it. And if you plug it in and just the red is on that's a dangerous, reverse polarity. So you wanna disconnect it immediately. Construction of this: the external metals are all a Marine grade three-sixteen stainless steel. The electrical pins are nickel plated brass and all the plastics used are UV and heat resistant. If you notice, it also comes with this nice black weather cap that'll snap on, protect the plug from the elements when it's not plugged in. Just push it like that, it latches into place. And you're ready to go. To remove it, just squeeze both connectors here and pull it right off. This part is made in the USA. Few specs again: total length, four feet; amperage, 30 amp on the female end, 15 amp on the male end. And the voltage is 125 volts. But that should do it for the review on this smart plug, four foot long, 30 amp female to 15 amp male Marine power cord..

Customer Reviews

SmartPlug RV Power Cord Adapter - 30 Amp Female to 15 Amp Male - 4' - SM64FR

Average Customer Rating:  5.0 out of 5 stars   (6 Customer Reviews)

This 4' adapter lets you connect your 30-amp SmartPlug cord to a 15-amp outlet at a campsite or residence.

- SM64FR

I was hesitant in ordering this pigtail since it was so expensive compared to the actual extension cord it self or other pigtails from other brands. Once I had received it and saw how great quality this product is, I was reassured to myself in not having buyers remorse. Thanks Smartplug for building such a great product.

- SM64FR

This is exactly what we needed. Sometimes we need to plug the trailer into our homes 15amp circuit while getting ready for a trip. This means we don’t have our long expensive cord out for someone to steal! It also means we have a lighter weight cord to manage.

- SM64FR

Excellent customer service!!!

- SM64FR

Works as it should!

- SM64FR

- SM74FR

Review from a similar Marine Power Cord in Marine Power

Couldn’t find this product in stock on any other web site. Initially ordered from [online] but they cancelled the order because product was back ordered. etrailer had this in stock and very quickly delivered it. Previously ordered heavy duty trailer hitch from eTrailer. Great products, fast delivery and excellent customer service.


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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Amanda M
Edited by:
Amanda M
Employee Halie H
Written by:
Halie H
Employee Cody B
Updated by:
Cody B

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