50 Amp RV Power Outlet Box, 125/250V Enclosed Lockable NEMA 14-50R Box, Weatherproof Outdoor Electrical Receptacle Panel with Power Indicator for RV Camper Trailer Electric Car, ETL Listed

50 Amp RV Power Outlet Box, 125/250V Enclosed Lockable NEMA 14-50R Box, Weatherproof Outdoor Electrical Receptacle Panel with Power Indicator for RV Camper Trailer Electric Car, ETL Listed
Price: GBP29.60 - GBP14.80
(as of Jan 07,2026 02:04:57 UTC – Details)

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Absolute UNIT

5 out of 5 stars

Absolute UNIT
This thing is built like a tank and then some. It's heavier than many other electrical enclosures I've used that are larger and have more components in them. The enclosure is very thick, rigid, and extraordinarily durable. I love the screw-on plates they used for inlet holes. Not only are they waterproof (rubber grommet), but they include several different sizes of inlet plates for any size of conduit fitting that you can swap out in 10 seconds. This is a super compelling product, and even at the higher price point I can see myself buying these in the future for clients that value proper quality.

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Top reviews from the United States


  • Reviewed in the United States on July 3, 2025

    Amazon Vine Customer Review of Free Product( What’s this? )

    This is a review of the ISLEWIRE 50 Amp RV power outlet box.

    I am preparing to have some electrical additions and updates made to my home and I want those additions to include the installation of this 50 Amp outlet box. This box is designed to be an outlet for up to 50 Amps of 125/250 Volts of A/C power. It has a NEMA 14-50R receptacle mounted within the box and the box has a lockable cover to prevent unwanted tampering with the connection. The box is designed for mounting in an outdoor location and has the appropriate waterproofing features built-in. Furthermore, this box has a corrosion-resistant paint coating so it should last for many years.

    I just received this item today and I am surprised by the weight of the item and the thickness of the steel used to product the box. Way to impress me, Gentlemen. Additionally, the finish of the paint on the box is exemplary. The box is equipped with a NEMA 14-50R receptacle (and it is so marked) mounted within the box. NEMA refers to the “National Electrical Manufacturers Association” which is a group that sets standards for electrical components and equipment, including enclosure ratings that indicate a product's ability to withstand specific environmental conditions. The outlet installed in the box is “ETL Listed” and bears the ETL symbol. "ETL Listed" means a product has been tested and certified by “Electrical Testing Laboratories” to meet applicable safety standards. This certification process provides assurance that the product has undergone independent testing and meets the safety requirements for its intended use. ETL is a Nationally Recognized Testing Laboratory (NRTL) as is Underwriters Laboratories (UL). I like this product very much and it will be most useful for my upcoming electrical project.

    This 50-amp power outlet box includes a power indicator light to inform the user that the power is enables to the outlet. The bright LED power indicator light will be illuminated when the circuit breaker is on and power is connected to the box. The power outlet box also includes a padlock-compatible design to ensure that access is limited to those who can remove an applied padlock. The power outlet box cover can also be locked with the plug installed into the outlet and thus prevent unauthorized removal of a power cord.

    This project started with the simple idea of adding a 50 Amp generator inlet box so that I can run a large portable generator to power my home in case we have more hurricanes that take out the local electrical grid for two weeks like last October. I am now planning for the addition of an electrical subpanel and this power outlet box. I am very happy with this product and I am very impressed with the quality of the product.

    One person found this helpful


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  • Reviewed in the United States on October 28, 2025

    Amazon Vine Customer Review of Free Product( What’s this? )

    This was easy to install (electrician said so), the doors open and close nicely and its quality is top notch. We had this installed for our Teslas home charging and it performs perfectly. It can be used indoors or outdoors without issue. I recommend this for Ev charging, but it can be used for other things as well.

  • Reviewed in the United States on September 14, 2025

    Amazon Vine Customer Review of Free Product( What’s this? )

    This is high quality outlet box that has a very solid feel to it.  No sharp edges. Door opens and closes very easy.  Should provide many years of use even when used outdoors.

  • Reviewed in the United States on August 27, 2025

    Amazon Vine Customer Review of Free Product( What’s this? )

    Haven't had installed yet but electrician said it's what we need. We are going to have installed at house to plug in the motohome.

  • Reviewed in the United States on July 25, 2025

    Amazon Vine Customer Review of Free Product( What’s this? )

    This thing is built like a tank and then some. It's heavier than many other electrical enclosures I've used that are larger and have more components in them. The enclosure is very thick, rigid, and extraordinarily durable. I love the screw-on plates they used for inlet holes. Not only are they waterproof (rubber grommet), but they include several different sizes of inlet plates for any size of conduit fitting that you can swap out in 10 seconds. This is a super compelling product, and even at the higher price point I can see myself buying these in the future for clients that value proper quality.

    Customer image


    5.0 out of 5 stars

    Absolute UNIT

    Reviewed in the United States on July 25, 2025


    This thing is built like a tank and then some. It's heavier than many other electrical enclosures I've used that are larger and have more components in them. The enclosure is very thick, rigid, and extraordinarily durable. I love the screw-on plates they used for inlet holes. Not only are they waterproof (rubber grommet), but they include several different sizes of inlet plates for any size of conduit fitting that you can swap out in 10 seconds. This is a super compelling product, and even at the higher price point I can see myself buying these in the future for clients that value proper quality.

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  • Reviewed in the United States on July 21, 2025

    Amazon Vine Customer Review of Free Product( What’s this? )

    The quality of this item is overall equal to or better than any units I was able to find at local hardware stores. Plus, it is the only one of the ones I looked at that the cover can fully close on the typical EV charging plug while it is plugged in!

    It has a very nice assortment of covers to match almost any use need. No more needing to punch out special oversized holes like happens often with other enclosures.

    Customer image


    5.0 out of 5 stars

    Great for EV charging cords! Cover can fully close on extended plugs with handles!

    Reviewed in the United States on July 21, 2025


    The quality of this item is overall equal to or better than any units I was able to find at local hardware stores. Plus, it is the only one of the ones I looked at that the cover can fully close on the typical EV charging plug while it is plugged in!

    It has a very nice assortment of covers to match almost any use need. No more needing to punch out special oversized holes like happens often with other enclosures.

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    One person found this helpful


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  • Reviewed in the United States on July 18, 2025

    Amazon Vine Customer Review of Free Product( What’s this? )

    This 50 amp outlet box is exactly what I needed for my RV parking spot. The enclosure feels sturdy and well-built, with solid construction that can definitely handle outdoor conditions. The weatherproof seal has held up through heavy rain with no issues, and I love that it comes lockable for extra security.

    Installation was straightforward if you’re comfortable with basic electrical work. The power indicator light is a nice touch—it lets me know when everything is properly connected and powered up. It fits my NEMA 14-50 plug perfectly with no looseness.

    Overall, this box is a great value. Safe, secure, and built to last. Highly recommend it for RVs, campers, or even electric vehicle setups!

  • Reviewed in the United States on July 16, 2025

    Amazon Vine Customer Review of Free Product( What’s this? )

    High quality 50amp power box. I used this to add a 50amp outlet for food trucks that park at our winery. This box is well made. It was easy to install. The cover allows for it to be closed while in use. Great value for the money.




Product Summary: Islewire 50 Amp RV Power Outlet Box, 125/250V Enclosed Lockable NEMA 14-50R Box, Weatherproof Outdoor Electrical Receptacle Panel with Power Indicator for RV Camper Trailer Electric Car, ETL Listed

From islewire
Product Dimensions ‏ : ‎ 7.09 x 8.27 x 7.48 inches; 5.95 Pounds
Item model number ‏ : ‎ ISLE-EB-1450R-01
Date First Available ‏ : ‎ September 5, 2024
Manufacturer ‏ : ‎ ISLEWIRE
ASIN ‏ : ‎ B0DG5G59ZP
Best Sellers Rank: #41,820 in Automotive (See Top 100 in Automotive) #141 in RV Plugs, Inlets & Receptacles
Customer Reviews: 4.6 4.6 out of 5 stars (11) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) if (dpAcrHasRegisteredArcLinkClickAction !== true) dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, “allowLinkDefault”: true , function (event) if (window.ue) ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) ); ); P.when(‘A’, ‘cf’).execute(function(A) A.declarative(‘acrStarsLink-click-metrics’, ‘click’, “allowLinkDefault” : true , function(event) if(window.ue) ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) ); );

ETL Certified RV Power Outlet Box: 50 amp RV outlet box features a NEMA 14-50R 50 Amp / 125/250V receptacle, providing a stable and reliable power supply for RVs, campers, travel trailers, and EV charging. ETL listed for safety and performance, this RV electrical outlet ensures dependable power access in both indoor and outdoor settings, making it perfect for home use, campgrounds, or public charging stations.
Weatherproof NEMA 3R Outdoor Electrical Box: Made from heavy-duty galvanized steel with a weatherproof, rust-resistant coating, this 50 amp RV receptacle box meets NEMA 3R standards for outdoor use. It provides excellent protection against rain, dust, and corrosion, ensuring long-lasting durability in any environment. Ideal for connecting your 50 amp RV plug or NEMA 14-50 EV outlet.
Versatile Knockouts for Easy Installation: Designed with pre-punched knockouts in multiple directions and sizes, this RV power outlet box allows for flexible conduit connection and quick setup without the need for drilling. The swing cover can stay open at its top position, giving clear access to the 50 amp outlet for installation or maintenance.
Power Indicator & Secure Closure: A bright LED power indicator light makes it easy to check the current power status at a glance. The press-to-open cover ensures child safety while preventing accidental openings. For added protection, the padlock-compatible design secures your 50 amp RV electrical box against unauthorized access, especially in public or outdoor locations.
Spacious Design for Easy Use: This 50 amp outdoor receptacle box is crafted to fit large plugs with built-in handles, such as a 50 amp RV plug or 50A EV charging plug. The enlarged cover plate and reinforced enclosure provide ample room for plug clearance and secure lid closure, even during continuous outdoor use. Ideal as a heavy-duty RV outlet, outdoor electrical box, or electric supply box for RV setups.

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