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Mighty Cord RV Power Cord Adapter - 30 Amp Female to 50 Amp Male - 12" Long
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Mighty Cord

Mighty Cord RV Power Cord Adapter - 30 Amp Female to 50 Amp Male - 12" Long

Part Number: A10-5030FBK
1363 Reviews | 29 Questions
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 Shore Power Cord
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Easily adapt your RV's 30-amp power cord for use with a 50-amp inlet. 3-Prong, female plug connects to a power cord. 4-Prong, male plug connects to an electrical box at an RV park. 90-Degree connectors are easy to fit into tight spaces. Great Prices for the best shore power cord from Mighty Cord. Mighty Cord RV Power Cord Adapter - 30 Amp Female to 50 Amp Male - 12" Long part number A10-5030FBK can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Mighty Cord Shore Power Cord - A10-5030FBK

  • 30 Amp to 50 Amp
  • Power Cord Adapter
  • 30 Amp Female Plug
  • RV
  • Angled Plug
  • Mighty Cord

Easily adapt your RV's 30-amp power cord for use with a 50-amp inlet. 3-Prong, female plug connects to a power cord. 4-Prong, male plug connects to an electrical box at an RV park. 90-Degree connectors are easy to fit into tight spaces.


Features:

  • Adapter converts your RV's 30-amp power cord for use with a 50-amp electrical hookup at an RV park
    • 3-Prong, female plug connects to your RV's 30-amp power cord
    • 4-Prong, male plug connects to a 50-amp outlet on an electrical box
  • 90-Degree connectors are easy to plug in, disconnect, and fit into tight spaces
  • Heavy-duty construction resists corrosion and withstands the elements
  • Black color


Specs:

  • Length: 12"
  • Wire gauge: 10 AWG
  • Voltage: 125V
  • 1-Year warranty


NEMA Chart

Using the chart above, you can determine which type of plug is needed for your application.



A10-5030FBK Mighty Cord RV Dog Bone Adapter Cord - 50 Amp Male - 30 Amp Female - 12" Long - Black







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Customer Satisfaction Score:

Ratings & Reviews

4.8

1363 reviews
5 Stars
(1207)
4 Stars
(118)
3 Stars
(19)
2 Stars
(7)
1 Star
(12)
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by:
Customer service so helpful and polite representative. Delivery fast and tracking information was accurate.
by:
I needed this adapter in case the campground I go to only has 50 amp service hookup. Etrailer had just what I needed and at a great price. Their website has great information on all their products and superb technical help on product review videos and customer help. You can’t do better than Etrailer when it comes to great service, fast shipping and excellent customer service.
Marvin profile picture

Marvin

6/26/2021

I really do like this heavy duty power cord. It is a super value and is very easy to unplug the male end. Also it is very flexible even in cold weather. A great product for any camper who needs an extension to their RV. Thanks again for such great products from your company…you can’t go wrong with etrailer.com.

by:
what we sometimes need if 30 amp power receptacle is not available.
by:
This adapter is necessary for a camp site only have 50 Amp outlet while your trailer has only 30 amp plug. I have spent a lot of time try to find this one, but nowhere can it be found except on etrailer.com website. Note if your wire are 20 or 30 amps you don't want to load up too many devices/electric loads even if you are hooked up to a 50amp site. This is something I always carry with me while traveling.
by:
Since I only received it today, I've only had time to look at this adapter. Inspecting it I can say it appears to be well put together and should work well. I borrowed one on my last trip for running our AC unit and additional amps available made everything, even the cords, a lot cooler than the 30 amp cord would normally run directly connected to park power post.
Based on that experience I bought this one to allow the air conditioner run a lot more efficiently.
I would recommend this product to anyone looking for better electrical performance.
by:
It was made in China. The connections are lightly copper plated and not a high % of copper. Makes me wonder what the wire looks like. Instructions say always store indoors. Makes me wonder if the exposed copper plug and pins will rust? It also says do not cover cord when in use to avoid over heating. Now I really wonder what they used for internal wiring.... I think I'll send it back. etrailer's service and quality is usually excellent and I have bought over a thousand dollars worth of items since 2022 from them and have always been more than pleased with what I received up until this item. I am sending this back. The company's customer service is just top notch and can't be beat.
by:
Went to a week end horse show and unable to use my air conditioning due to my plug not fitting their outlet. Contacted the people at etrailer and they solved my problem right away. This adapter fits my plug and now if I arrive at a campsite with 50 amp rather than 30, I am golden, and now I can stay cool!
by:
Being new to the travel trailer community, I have found that there are always necessities that are a must to have on board. This adapter for connecting a 30 amp power converter to a 50 amp electrical service fits the bill where a 50 amp power source is the only service available. E-trailer could provide the adapter for a more reasonable price and more quickly than the other provider I researched.
by:
The plug is exactly what I needed to step up to a 50amp. I was thankful I had it when running air conditioner non stop this summer. So many of these plugs burn up but this one is holding up!
by:
A 30 foot power cord came with our travel trailer. I had a feeling that this might be short in certain instances. I have needed the extention cord about 50% of the time. Glad I got it! Works great, and very flexible.
by:
Great service, quick shipping! I have used eTrailer for all of my RV and tow vehicle's needs.
by:
Quick delivery, arrived as expected.
by:
Product is what I ordered and seems to be in good condition. Had trouble ordering on line and had to call to place my order. Never had that problem before. etrailer does a good job with product info and service.
by:
I like the sturdy construction of the cord; it will hold up very well. The length is just right for allowing a good connection on both ends of the cord.
by:
Superb product! It's been working fine for more than one year. I really appreciated the follow up etrailer.com did after product purchase to ensure I was satisfied. I'd shop no where else for my RV needs.
by:
Shipping was faster than expected and adapter seems like it is very durable and heavy duty
by:
As always customer service and products rate at a very high level. Fast shipping too! Thanks for always being our go-to for our RV parts and supplies!
by:
The product was as described and looks to be heavy duty and really nice for the price. I am happy I decided to order it from Etrailer. Thanks and I will order again
by:
Product is what was expected
by:
Best price, quick delivery (even using economy). Exactly what I needed to avoid having to rewire the existing outlet. A welcome addition to my class C
toolbox.
by:
I have dealt with e trailer for years many times and always are satisfied with the quality and service Email follow up (George J) is great also. I would recommend without reservation etrailer.
by:
Fast shipping great price, great product
by:
Excellent product just what I was looking for. Their price match is fantastic. Etrailer always my first choice.
by:
Good quality product, fast shipping and great communication during sale and shipping timeframe.
by:
Great adapter for when you need to plug in your 30 AMP. RV to a 50 AMP shore power
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See what our Experts say about this Mighty Cord Shore Power Cord

Do you have a question about this Shore Power Cord?
  • Where Should The RV Surge Protector Be Plugged In When Using An RV Power Cord Adapter
    Hi Bernadette, You would want to plug your 50 amp to 30 amp adapter in to the power pedestal and then connect your Portable Power Watchdog Surge Protector # HU42VR to the adapter. Once the Watchdog lights show that the connection is good you can connect the trailer power cord to the surge protector. If you don't have a 50 amp to 30 amp adapter you can use the # A10-5030FBK.
    view full answer...
  • Recommended 50 Amp Transfer Switch to Upgrade from a Intellitec 30A Transfer Switch
    It sure will Danny and thanks for all the detailed information! The 50 Amp Furrion Automatic Transfer Switch item # F50ATS is exactly what you need. It is compatible with your WFCO AC Distribution Panel and is going to work great with your Onan generator. This one does have a delay setting that you can turn off if you want to immediately switch over to generator or shore power. If you have any additional questions, go ahead and click on the box that says Add Comment and I'll be happy...
    view full answer...
  • Can I Use an Adapter to Plug the 30 Amp ActiveStart Plug-In Soft Start to a 50 Amp Plug?
    It sure can Hiroshi! The Active Controls ActiveStart Plug-In Soft Start for RVs item # AS94FR can be connected to a 50 amp service using the Mighty Cord RV Power Cord Adapter item # A10-5030FBK. It's extremely common for people to use a 50 amp power source on a 30 amp camper like what you are wanting to do. What size AC unit do you have in your trailer? You can add this information, along with any other questions you have, where it says Add Comment.
    view full answer...
  • Can 30 Amp RV be Powered from 50 Amp Power Source
    It's very common for people to use a 50 amp power source on a 30 amp camper like what you are trying to do. Basically you'd want to use the 30 amp surge protector after the dogbone 50 amp to 30 amp adapter like the part # A10-5030FBK that you referenced. This protects your 30 amp RV from overdrawing.
    view full answer...
  • 30 Amp to 50 Amp Connector Option
    Hi Mike! We do carry 30 amp to 50 amp adapters, but unfortunately, we don’t have one with both a 90-degree angle and a female twist-lock connector. That said, we do have the Mighty Cord Adapter part # A10-5030FBK it’s a 12" long adapter that lets you connect a 30 amp female plug to a 50 amp male shore power source. If you can share a little more about your setup and what you’re trying to do, just drop a comment below—I’d love to help you find the perfect fit!
    view full answer...
  • Recommended 240v 50 Amp to 120v 30 Amp Adaptor
    I spoke to my contact at Valterra and found that the # A10-5030FBK steps down a 50 amp service receptacle (2 X 120VAC) to 30 amps supply. This would work great for your camping trailers electrical system. I have linked the above mentioned product to this page for your convenience.
    view full answer...
  • Availability of 50 Amp Male to 30 Amp Female Power Cord Adapter
    Hey David, are you looking for an like the Mighty Cord part # A10-5030FBK? This goes from a 50 amp male to a 30 amp female like it sounds like you are looking for.
    view full answer...
  • Can A 50 Amp Surge Protector Be Used On A 30 Amp Application?
    The best option is to use a 30 amp surge protector like the Camco RV Power Defender Circuit Analyzer Dogbone # CAM55312, but if you really wanted to use the 50 amp surge protector # SU99SR you'll just need to use the: -Mighty Cord RV Power Cord Adapter - 30 Amp Female to 50 Amp Male # A10-5030FBK with the Mighty Cord RV Power Cord Adapter Plug - 50 Amp Female to 30 Amp Male - Round # A10-3050AVP. The reason you'd want to not use a 50-amp surge protector with your 30-amp trailer is because...
    view full answer...
  • Recommended 4 Prong to 3 Prong Power Adapter for RV
    Since you have a 3 prong plug on your trailer, I assume you have a 30 amp system. For adapting to a 4 prong plug you would then use the Mighty Cord Generator Adapter for RV Power Cord - 30 Amp Female to 30 Amp Twist Lock Male - 12" # A10-G30430VP. If you instead want to connect to a 50 amp 4 prong plug then you will use adapter # A10-5030FBK. We don't have any female to female adapters to if you need a longer cord you will simply use an extension.
    view full answer...
  • Which Surge Protector Should I Use For My RV
    When it comes to which surge protector is right for you, The Power Watchdog Surge Protector with Bluetooth - Portable - 50 Amp # HU47FR will get the job done, it is more powerful then the 30 amp. This surge protection module offers 6,100 joules of protection in case of a lightning strike. It can be easily replaced after it wears out, no need to replace the entire unit. You can monitor your system through the free smartphone app for IOS and Android which connects via Bluetooth. This product...
    view full answer...
  • Recommended 50 Amp Male to 30 Amp Female RV Dog Bone Adapter
    It sounds like you're looking for the Mighty Cord RV Power Cord Adapter part # A10-5030FBK which has a 50 amp male plug on one end and a 30 amp female plug on the other. It's only offered in a 1' or 12" length.
    view full answer...
  • Can 2019 Lakota Living Quarters Horse Trailer with 30 Amp AC Unit Draw Power From Campsite
    30 amp service is very common at campsites. You'd have no problem attaching directly to the power supplies at the sites. Let's say you were at a campsite that only had 50 amp power supplied though, in this situation you could use the part # A10-5030FBK and you'd be set. Having more power than needed won't hurt anything. Your AC would only pull the amperage it needed.
    view full answer...
  • Does Mighty Cord Adapter # A10-5030FBK Reduce 240v to 120v?
    Never fear! I went ahead and reached out to my tech at Valterra (the manufactures of Mighty Cord products) and she confirmed that the RV Power Cord Adapter # A10-5030FBK takes the 240v down to 120v. This this factor, it is fine to use with a 30-amp RV.
    view full answer...
  • Will The Watchdog Surge Protector Still Work If You Use A Y-Adapter To Get Power
    The Power Watchdog Surge Protector # HU27FR is just there to cut the power to your RV in the event that the voltage drops below 104v or surges above 132v to protect the electronics is your RV. Changing how the RV gets that power won't affect it as long as it stays within that voltage range. For example, if you were at a campsite with 30 amp service and used a 50 amp to 30 amp adapter like the # A10-5030FBK your RV would only be getting 30 amps and the surge protector would still function...
    view full answer...
  • Can a 30 Amp to 50 Amp Dogbone Adapter Be Used On Trailer with 30 Amp Surge Protector
    Yes, you can use a 30 amp to 50 amp dogbone adapter like the Mighty Cord Dogbone RV Power Cord Adapter part # A10-5030FBK on a trailer with 30 amp surge protector.
    view full answer...
  • How To Use 50 Amp Surge Protector On 30 Amp Trailer with 30 Amp Service
    The best option would be to switch to a 30 amp surge protector like the Camco RV Power Defender Circuit Analyzer Dogbone part # CAM55312. That said, you can use your 50 amp surge protector with a few dogbone adapters, the Mighty Cord Dogbone RV Power Cord Adapter part # A10-5030FBK and Mighty Cord RV Power Cord Adapter Plug part # A10-3050AVP.
    view full answer...
  • Recommended 50 Amp RV Cable With 50 Amp Twist Lock Female To 30 Amp Male Connector In 50 Ft Length
    It sounds like you want a cord to run from a 50-amp recepticle on a shore power pole to the 30-amp power cord on your RV. For that purpose you could use the Mighty Cord # A10-5025EH 50-amp extension cord. Add to that a Mighty Cord # A10-5030FBK power adapter to go from 50-amp down to 30-amp to attach to your RV 30-amp power cord. The cord on your RV is probably 25 foot and this extension is 25 foot, totalling 50 foot, the maximum distance to run a 50 amp cord.
    view full answer...
  • Will 50 amp to 30 amp Adapter be Okay to Use with 50 amp Source and 30 amp Converter
    Using a 50 amp to 30 amp adapter like the part # A10-5030FBK will be totally fine for your application. The 50 amp power source will be 240 volts and the 30 amp will be 120 volts but the adapter cuts the voltage down to correct number and the extra amperage won't be an issue either.
    view full answer...
  • Adapter Needed To Plug A 30 Amp Trailer To A 50 Amp Outlet On A House
    The Camco RV Power Defender Circuit Analyzer Dogbone - 125V - 30 Amp # CAM55312 isn't a 50 amp to 30 amp adapter so you would actually need an adapter like the Mighty Cord RV Power Cord Adapter - 30 Amp Female to 50 Amp Male # A10-5030FBK to be able to draw 50 amps and adjust it to 30 amps for your trailer.
    view full answer...
  • Electrical Cord and Adapter to Connect 50-Amp Motorhome Power Inlet to Standard Household Outlet
    Motorhome 50-amp male power inlets require a cord with a 50 Amp Twist Lock female plug like the one on the Mighty Cord 25-foot # A10-3050EDBK. But since the other end of this cord has a 30-amp male connector, not a 15-amp household supply male connector, you will also need a dogbone adapter # A10-1530HVP to give you the standard 120V male plug to connect to a household outlet.
    view full answer...
  • Recommended Power Adapter and Surge Protector for 50 Amp Campsite to 30 Amp RV Connection
    You have it correct. From the RV connection, you will use the 30 amp female to 30 amp male power cord like # A10-3025ED90. Then you will have your 30 amp surge protector like # CAM55312 for single surge or # CAM55301 for multiple surge with automatic reset which is what I recommend. Then you can use an adapter like the Mighty Cord Dogbone RV Power Cord Adapter - 30 Amp Female to 50 Amp Male - 12" # A10-5030FBK to connect to the campsite power service.
    view full answer...
  • What Does Male End of Mighty Cord Dogbone RV Power Cord Adapter Fit?
    The male end of the Mighty Cord Dogbone RV Power Cord Adapter # A10-5030FBK is a plug that will connect to a 50-amp hookup at an RV park. You plug this end into the outlet that looks like the one one in the accompanying diagram and the other end is what you will plug your RV's 30-amp power cord into.
    view full answer...
    Image 1 for
  • Recommended RV Extension Cord and Adapter for Mini RV
    We do have a 20 Amp extension cord available, which is the Mighty Cord RV Extension Cord # A10-G20253E. In order to use this you will need to have a twist lock plug on your mini RV. Unfortunately there are no 20 Amp adapters that will work for you. That being said, I recommend verifying that 20 Amps is correct. It would not be the first time someone was given the wrong information and you want to make sure you have the right equipment. More than likely you need a 30 Amp and not a 20 Amp....
    view full answer...
  • Camco Power Maximizer for 50-Amp RV That Has Access to Only 30-Amp and 15-Amp Service
    We offer many RV wiring adapter items that can allow connecting 50-amp devices to 30-amp service at an RV park. I think the item that was mentioned to you is the CAMCO Power Grip RV Power Maximizer # CAM55025. This is a Y-type adapter cord that on one end has a 50-amp female connector for your RV and on the other end two separate connectors for 15- and 30-amp service. By connecting the two lower-rated plugs to the RV park power access you end up with a total of 45-amps of current for...
    view full answer...


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