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  1. RV Plug Adapters
  2. Mighty Cord
  3. 50 Amp to 30 Amp
  4. Adapter Plug
  5. 50 Amp Female Plug
  6. 30 Amp Male Plug
Mighty Cord RV Power Cord Adapter Plug - 50 Amp Female to 30 Amp Male - Round

Mighty Cord RV Power Cord Adapter Plug - 50 Amp Female to 30 Amp Male - Round

Item # A10-3050AVP
Our Price: $19.95
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RV Plug Adapters
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Mighty Cord 30 Amp Male Plug RV Plug Adapters - A10-3050AVP
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Easily adapt your RV's 50-amp power cord for use with a 30-amp inlet. 4-Prong, female plug connects to a power cord. 3-Prong, male plug connects to an electrical box at an RV park. Great Prices for the best rv plug adapters from Mighty Cord. Mighty Cord RV Power Cord Adapter Plug - 50 Amp Female to 30 Amp Male - Round part number A10-3050AVP can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (73)
  • Q & A (0)
  • Videos (2)
  • Photos
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Mighty Cord RV Plug Adapters - A10-3050AVP

  • 50 Amp to 30 Amp
  • Adapter Plug
  • 50 Amp Female Plug
  • 30 Amp Male Plug
  • RV Cord to Power Hookup
  • Mighty Cord
  • Plug Only

Easily adapt your RV's 50-amp power cord for use with a 30-amp inlet. 4-Prong, female plug connects to a power cord. 3-Prong, male plug connects to an electrical box at an RV park.


  • Adapter converts the 50-amp plug on your RV's power cord to work with a 30-amp electrical hookup
    • 4-Prong, female plug connects to your 50-amp power cord
    • 3-Prong, male plug connects to the 30-amp outlet on an electrical box
  • Molded grips allow for easy plug in and disconnect
  • Durable PVC construction resists corrosion and withstands the elements


  • Dimensions (without prongs): 3-1/8" long x 2-1/8" diameter
  • Voltage: 125V AC
  • 1-Year warranty

NEMA Chart

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

A10-3050AVP Mighty Cord RV Power Cord Adapter Plug - 30 Amp Male to 50 Amp Female

California residents: click here

Video of Mighty Cord RV Power Cord Adapter Plug - 50 Amp Female to 30 Amp Male - Round

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

Video Transcript for Mighty Cord 50 Amp Female to 30 Amp Male RV Power Cord Adapter Plug Review

What's up everybody I's AJ with Today we're gonna be checking out this power cord adapter from Mighty Cord. Now this is gonna be a 50 amp female. It's a 30 amp male. This is gonna be used to convert your power on your rig down to 30 amps. So let's say that you have a campsite, you're there, the parking spot's not available for a 50 amp, those are all taken, you have to park in a 30 amp one.

Well this is gonna down convert that power so you can at least turn the lights on. Let's check it out. Taking a closer look at it. Just wanna show you there isn't a twist lock on either end of this. It's just a standard plug.

And we'll just take it. Plug it right in. And now you're good to plug in the power. Now we're not on a campsite, so we're gonna use our generator here that has a 30 amp plug. So I'll fire that up first and then we'll plug it in.

Now that we're inside, I can flip on the lights. Looks like it's working just fine. Taking a closer look at it, you can see it's got grooves in it. And texture for when you're going to plug it in or unplug it. You also have these bumps.

You can put your fingers before and it just helps you unplug it easier. Even when gloves. My hand slides a little bit, or would slide a little bit, but it doesn't with the grooves. And these bumps to put my fingers around. One thing that we saw online that our customers aren't such a fan of is how much pressure it puts on the prongs. So if you go to plug this into your unit, and you can see that this is a heavy duty cord so it's gonna pull down on this, so it's gonna sit like this, that's putting all that pressure on these. And that's something you want to avoid. There is other options called the Dog Bone. Now it's gonna do the same thing and be an adapter. It just gives you a little bit more cord to work with so when you plug it in all that pressure isn't right here at the base of it. So you'll have it plugged in, it can hang down then, there's not as much pressure on the prongs here or here. It alleviates some of that. If you stick with just getting this adapter, that's fine too. It's good to have it just in case you need it. It's made out of rubberized plastic so you don't have to worry about it getting damaged. You can drop it on the ground. It's not gonna break. Some of them are made of more of a plastic material. And those, I feel like you might drop that and break it and a chunk comes off. This one's not gonna do that, it's heavy duty. Like I said, it's good just to have it. You don't know what the campsite's gonna have by the time you get there. And hopefully you watch this before you actually need it so you have it and you're ready. Well thanks for hanging out and I hope this helped..

Customer Satisfaction Score:

Customer Reviews

Mighty Cord RV Power Cord Adapter Plug - 50 Amp Female to 30 Amp Male - Round - A10-3050AVP

Average Customer Rating:  4.9 out of 5 stars   (73 Customer Reviews)

Easily adapt your RV's 50-amp power cord for use with a 30-amp inlet. 4-Prong, female plug connects to a power cord. 3-Prong, male plug connects to an electrical box at an RV park.


Great product! Works well and helped get me out of bind. Thanks!!


Sent me a text when order was delayed and gave me an option to switch item to comparable. Used etrailer many times. Great service. Products solid.


Applies easily


So far so good!


This hockey puck solved the problem of connecting my 50 amp cord/plug into the 30 amp receptacle at the RV park. Good quality, good fit.


working just fine. Exactly what I neede d.


etrailer shipped the plug quickly, and it arrived on time and in good condition. Excellent service.
The plug itself was easy to install, replacing the one on our cord that had gotten damaged (cracked) somehow. Works well.

After more than a year of heavy usage, Im still very happy with it. No issues at all.
Jim P - 09/05/2019


I wanted a simple way to connect my 50A RV power cable to 30A when that was the only power service available. This adaptor plug is compact and easy to use. It fills the bill perfectly. I am very satisfied with the product and etrailer as a seller.

I havent used the adaptor all that much but it has worked well the few times that I have used it.
Gary J - 01/09/2019


Works well. Adapts 30A outlet i have on garage to work with new camper thats 50Amp service. Its a good idea to coat the terminal lugs with silicone grease thats made for electrical connections. You can find it at an auto parts store as it is commonly used on rubber spark plug boots.


Great products


Used this item several times already and it worked great. It’s not big and bulky and was easy to use.


Excellent communication on providing status of our order! Highly recommend using etrailer when needing to order parts on line. I’ve ordered items at least 4 different times now and am extremely happy with this company!


I have a 50 amp surge protector that requires a vertical position to prevent water intrusion. Using a pigtail, when only 30 amp is available, drops the unit too low and makes it difficult to maintain the correct alignment. This straight 30 amp to 50 amp adapter allows the unit to remain vertical. I do use a bungee to support the surge protector and avoid strain on the adapter.


Quality product!

The mighty plug
works great when 30 amp hookups are all that's available. Keeps my 50 amp surge protector off the ground, which happens when using a regular pigtail adapter.


Very good product to use and keeps the supply line from hanging lower on a power pedestal with the use of a traditional dog one conversion


Straight up 50 to 30 amp RV adapter without the "dog bone" cord. I like to have option for power connection and this is about as compact as you could get.


Great doing business with the folks at eTrailer! All the products I've ordered are great quality, reasonably priced, and arrive on time! This adapter is built like a tank and should give us years of service. Easy to plug, easy to grip, and small enough to store easily.


The RV plugs, and adapters were awesome. etrailer is the best, really like doing business with them.


Just what I needed. Fast service too.


It's sturdy and works as advetised.


Simple and easy to use!


very happy with this looks like great quality. Will not be using it unless I need my generator with the new 5th wheel we are purchasing


Yes, I enjoy my 30 to 50 plug adapter, which are hard to find! It's built well, works great!


Product is fantastic. I purchased this a year ago and still using it today.. No problems so far


Very fast shipping and the product is exactly what I needed. I always look to etrailer first for my automotive and trailer needs

Show More Reviews

See what our Experts say about this Mighty Cord RV Plug Adapters

  • Does the Mighty Cord RV Power Cord Adapter Plug Change the Amount of Amps Going into the Unit?
    I reached out to my contact at Valterra and they advised me that the Mighty Cord RV Power Cord Adapter Plug # A10-3050AVP does not change the amps going into the unit. There will be 30 amps going into the unit.
    view full answer...
  • What Adapter Should be Used for Trailer's 50 Amp Plug on 30 Amp Electric Receptacle?
    To connect to a 30 amp receptacle with a trailer that has a 50 amp power plug you can use the Mighty Cord RV Power Cord Adapter Plug # A10-3050AVP which is a simple plug with a grooved design allowing for grip. Your other option would be the Power Grip RV Power Cord Adapter # CAM55185 which will perform the same function but has handles to make unplugging each end simple. I've added links to video reviews of both products for you to take a look at.
    view full answer...
  • I Need a 25 ft RV Power Cord 50 Amp Twist Lock to 30 Amp Shore Power
    I have a solution that is very close to what you are looking for. At this time, the closest we can get to your request would be a 25ft cord, # 277-000151, and a 50 amp to 30 amp cord adapter, # A10-3050AVP. This will give you give you both connections you are looking for and a 25ft cord. I attached a couple videos of these products for you to check out.
    view full answer...
  • RV 30 Amp And 50 Amp Adapters To Allow Electrical Hookup Between RV And Power Supply On Site
    The Mighty Cord RV Power Cord Adapter Plug - 50 Amp Female to 30 Amp Male - Round # A10-3050AVP will allow you to plug a 50 amp system into a 30 amp receptacle. If you have a 30 amp system and need to plug into a 50 amp electrical hookup at an RV park, I recommend the Mighty Cord Dogbone RV Power Cord Adapter - 30 Amp Female to 50 Amp Male - 12" # A10-5030FHVP. These simple adapters make your system adaptable for the electrical hook-up available.
    view full answer...
  • Using 50 Amp Power Watchdog Surge Protector With 30 Amp Service
    That is not a problem, you can use Power Watchdog Surge Protector with Bluetooth, # HU47FR for a 50 Amp service and an adapter such as the Mighty Cord RV Power Cord Adapter Plug for 50 Amp Female to 30 Amp Male, # A10-3050AVP when needed. You want to match your surge protector to the rating of your TT's service for preventing damage to your electrical system from power spikes.
    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...
  • 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 4,800 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...
  • Smallest Inverter Generator with 240 Volt 50 Amp Outlet
    The smallest (in regards to watts) generator that we offer with a 240 volt outlet is the A-iPower 4,500-Watt Portable Generator part # 289-SUA4500. That said, this generator does not come with an inverter nor do we offer an inverter generator with a 240 volt outlet. However, you could use an inverter generator like the etrailer 3,200-Watt Portable Inverter Generator part # 333-0003 or one from the list below with a 240 volt plug but you would also need an adapter the Mighty Cord RV Power...
    view full answer...
  • How To Wire An RV Power Cord With Pigtail Wiring
    Your power cord just like with the Epicord RV Power Cord with Handle # 277-000154 will wire the black and red wires as your positive, white as your neutral, and green as your ground. The green wire should not be sticking out of the sleeve like you have pictured and the plug should have a ground nut on it. Since you have four wires that is a 50amp power cord. If you purchased the black plug separately and it doesn't have four connection points then you most likely purchased a 30amp plug...
    view full answer...
    Image 1 for
  • Hooking Up Surge Protector for 30 Amp Camper to Plug Into 50 Amp Power Source
    If your camper is wired for 30 amps I highly recommend using a 30 amp surge protector. The potential issue with using a higher-rated 50 amp surge protector is that it wouldn't be triggered soon enough to protect any appliances you have that are rated for 30 amps. To hook up your 30 amp camper to a 50 amp power source you will want to first connect a 30 amp voltage protector (like the Camco # CAM55301 for a reseting protector or # CAM55312 for a one-time-use protector) to the camper. Then...
    view full answer...
  • Surge Protector for 50 amp Service Used With 30 amp Service
    No problem, you want to match your surge protector to the rating of your service. So for your 50 amp service RV, you will want to use the Portable Power Watchdog Surge Protector with Bluetooth and Emergency Shut Down - 50 Amp, # HU87FR. This surge protector prevents damage to your RV from power spikes and sustained high or low voltage and when needed to be used with a 30 amp service, use the Mighty Cord RV Power Cord Adapter Plug - 50 Amp Female to 30 Amp Male, # A10-3050AVP. Or the Mighty...
    view full answer...
  • Using a 30 Amp Power Watchdog Surge Protector With 50 Amp Service
    You can use an adapter such as the Mighty Cord RV Power Cord Adapter Plug for 50 Amp Female to 30 Amp Male, # A10-3050AVP to use a 50 Amp surge protector with a 30 Amp power pedestal, but you cannot use a 50 Amp power pedestal to a 30 Amp service RV or surge protector. Any surge protector should be matched to the service of the RV. Such as the 30 Amp Power Watchdog Surge Protector, # HU97FR or the 50 Amp version of, # HU47FR.
    view full answer...
  • 50 Amp RV Power Cord Extension to Plug Into Shore Power
    It sounds like you are wanting just an extension for your current 50 amp power cord to plug into shore power; we do have that, you just need to choose the length you need. - 10 Feet: Mighty Cord RV Extension Cord # A10-5010EH - 15 Feet: Mighty Cord RV Extension Cord # A10-5015EH - 25 Feet: Mighty Cord RV Extension Cord # A10-5025EH - 50 Feet: Mighty Cord RV Extension Cord # A10-5050EH Each of these extension cords will plug into 50 amp shore power, so if you need to plug into 30 amp...
    view full answer...

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Info for this part was:

Employee Andrew K
Installed by:
Andrew K
Employee Cole B
Installed by:
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Employee Joshua S
Video Edited:
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Employee Amanda M
Written by:
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Updated by:
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Video by:
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