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SmartPlug RV Power Inlet - 50 Amp - White
SmartPlug

SmartPlug RV Power Inlet - 50 Amp - White

Part Number: SM89FR
In Stock
$151.20
Retail:$168.46
You Save: $17.26
Shore Power Inlet
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Get your ride SmartPlug ready. Replaces the fiddly twist lock inlet with a more secure and safe connection. Plug in with ease and have one less thing to worry about. Installs into the same footprint as a standard inlet with no modification needed. Great Prices for the best shore power inlet from SmartPlug. SmartPlug RV Power Inlet - 50 Amp - White part number SM89FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (222)
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  • Videos (3)
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SmartPlug Shore Power Inlet - SM89FR

  • 50 Amp
  • Power Inlets
  • White
  • SmartPlug
  • Standard Connector
  • RV
  • Plastic

Get your ride SmartPlug ready. Replaces the fiddly twist lock inlet with a more secure and safe connection. Plug in with ease and have one less thing to worry about. Installs into the same footprint as a standard inlet with no modification needed.


Features:

  • Inlet lets you plug in your SmartPlug cord to power your RV or boat
    • 4-Prong male inlet accepts SmartPlug 50-amp female connectors (sold separately)
    • Cables lock in place for secure connection
  • Straight-in, single-step operation means no more twisting or fiddling with locking rings
    • Plug shape takes guesswork out of connecting so it's simple to use, even in the dark
  • Flat electrical pins increase contact area compared to curved pins in twist locks
    • Reduces heat caused by electrical resistance
  • Inlet cap snaps down onto plug body when in use to reduce strain
    • Helps stop plug from being yanked out accidentally
  • Rubber seal keeps inlet safe from the elements when not in use
  • 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
  • Easy installation - sized to fit standard inlets so you can use the same screws and holes
  • White color
  • Made in the USA


Specs:

  • Amperage: 50 amps
  • Voltage: 125/250 volts
  • 7-Year warranty


SmartPlug vs. Twist Lock


RV and boat owners have long relied on Twist Lock style connections for powering their rides. For years, it has been the best option for connecting to shore power. It's been reliable, but most know it's not without disadvantages:


Twist-Type Design Problems

  • Curved pins make minimal surface contact, increasing the amount of heat generated
  • Locking ring can be prone to breaking, cross threading, and stripping out
  • Faulty locking ring puts strain on the connection
  • Wear and debris can loosen the fit, further decreasing surface contact
  • Circular plug shape isn't user friendly and takes some awareness of the orientation of the pins to insert correctly

SmartPlug's connector addresses each of these concerns and does all of the heavy lifting.


Locking arms grab the inlet, a clamp inside the plug body holds the cord, the inlet cap snaps to the top while in use, and the integrated seals weatherproof the connection. This helps prevent the wiggly, dirty connections that increase electrical resistance, which creates potentially dangerous heat.


Since it uses a square plug face, SmartPlug is able to use flat pins which create far more surface contact, further reducing the risk of high heat and electrical arcing. The square shape and flat pins also make it easy to plug in - no more twisting or guessing if the pins are lined up correctly.




BM50PW SmartPlug 50 Amp - Non-Metallic Inlet w/ White Cover Assembly





Video of SmartPlug RV Power Inlet - 50 Amp - White
Video Thumbnail Video Player Dialog

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




Video Transcript for An In-Depth Look at the SmartPlug RV Power Inlet

Hello, everybody. Clayton here at etrailer.com. Here at etrailer.com, we install, test and review, a lot of different products to help you as the customer make a more educated decision before your purchase. Today we're gonna be working on Grand Design Reflection Fifth Wheel Camper. We're gonna be taking a look at, and I'll show you how easy it is to install the smart plug power outlet. This is what our smart plug is gonna look like installed.

This is gonna be a 50-amp version. It's gonna be 125 volts by 250 volts. That's gonna cover a lot of different campers out there on the market. Now my favorite feature of our smart plug is gonna be our prongs. So you might be asking yourself, you know, "My plug works just fine.

Why would I wanna upgrade" But really this is an awesome upgrade to any camper or fifth wheel that you might have. Like I said, these prongs are extra long, so it's gonna be really easy to get our plugin. And as you can see, our plug is shaped a little bit different than the standard plug. Most of our plugs on the market, you do have to push in and then twist. So this is gonna be really easy to live with.

And since it is shaped this way, all you have to do is hold your cord up and plug it in. As I said, it's super easy. You just gotta push in and snap. And it has these nice tabs on the outside that make a really good click whenever you know you're got it plugged in. As you can see, it's nice and secure.

And here's the plug that we took off. Like I said, you have to push the standard rod on and twist it. So you can see those little tabs on here, and that's what catches it. But what makes our smart plug so much better, is there's a lot more contact area. You can see our plug where it actually is gonna twist and stop. There's only a little bit of that prong. So if there isn't any debris or anything on there it's really gonna limit the charging. It's just gonna take a lot longer. Also, it's just not gonna be easy to live with. And what makes the smart plug so much better than any of those other plugs out there on the market is gonna be the weather proofing. There's a really nice gasket on the inside of our cover. So whenever it's closed, it's gonna hug it really tight. You're not gonna have to worry about any dirt, or debris, and any condensation building up inside of our plug. Then when we have our plug actually plugged in, there's a gasket in this channel as well. So if it's raining, you don't have to worry about any water getting into your plug while it's being used. One really nice feature is this does have a 30-amp overheat cutoff. So if it is getting too hot, it'll automatically cut off. Our connecting pins are gonna be made out of a premium material. This is gonna be a nickel plated brass to ensure strong conductivity. A lot of the other ones on the market are just brass or they're nickel. So you're not gonna get that same power level through the pins. Then with these being a straight longer pin, it's really gonna allow us to get more contacts to those pins to increase our charging. So if you aren't camping in a traditional site, you're just gonna use the normal style plug. You know, also pick up this adapter here at etrailer.com. You simply just plug us into here. And this allows us to use just a standard wall outlet. And the best feature of the smart plug is how easy it is to get installed. A lot of 'em you're gonna have to drill new holes. But in this case, it lined right up. Now I can't guarantee that's gonna work for every camper, but in this case it did. So it's simply four screws and connecting our wires, pushing it up to the wall, and bolting it in. With that being said, I'll go ahead and show you how to get it installed. To start our installation, we wanna pull off the factory plug that our camper is gonna come with. In this case, it is a Furrion plug. But before we do anything, we wanna make sure that it's gonna be 50 amps. And we wanna make sure with our new smart plug if this one is rated at 50 amps as well. And in this case, it is. So we wanna make sure that we get enough slack out of our wire. We just wanna disconnect all of our electrical connections. Now it's very important to make sure that your battery disconnect is in the off position. 'Cause you don't want any power coming in or out of this plug while we're doing this. I'm just gonna grab a flat blade screwdriver. We'll just loosen up all our connection points. And the other thing you wanna keep in mind is that our new plug and our old plug are both gonna have four wires. You just wanna make sure that we're replacing it with the same thing that was on it. Just like that, we can set our old plug off to the side. So our plug is in a little bit different orientation than our wires we're in our original bundle. I'm just gonna strip back this sheathing a little bit just to give us a little bit more play with our wires due to the gauge of them. It's kinda hard to move them around. So you just wanna cut that carefully, making sure not to cut any of your wires. So right there should be about good. I'm just gonna bend that back out of the way. It's gonna give us just a little bit more room to play with our new wires. So we're gonna hook these up the exact same way that our old ones were. Black to black, red to red, white to white, and green to our paper covering. All we're gonna do is just slide these through our openings here, like so. And we can grab an Allen key. We're just gonna tighten these down onto that wire. Just like so. Just wanna give it a little tug and make sure it's nice and tight. We'll repeat that same process for our remaining wires. And I'm gonna grab our gasket material here. Just wanna hold it up to our original opening. And we already did check where our bolt holes are gonna line up. So that's gonna be really nice. We just wanna grab our gasket. We're gonna peel the sticky tape or the layer protecting it back here. Just gonna peel this off. It is kinda hard just 'cause this gasket wants to flex whenever you pull back on that material. Because our wire is going through it, you just wanna to kinda tear this here and you can work it off of that gasket. You wanna be careful not to touch the adhesive to anything. You just wanna double check orientation of our gasket. This is gonna be the bottom. So we do want the bigger opening facing up on our gasket. Now we just wanna grab our gasket, kinda move our wire out of the way, align our holes and stick it down. With that all stuffed down, I'm just gonna run our hands around it and make sure everything's good. And then you simply push our wire back into the opening, kind of spin it around. We just kinda wanna turn it and then get our screw lined up with that original hole. And then we'll just get our hardware started. Now honestly, it might be nice to have an extra set of hands just to kinda hold that steady while you're getting the hardware started. And it is a little bit off compared to our stock one. So we just wanna get them all started loosely. Then we can kinda move it around and adjust it to make sure it gets nice and flush to our camper. You can go ahead and tighten down our last screw. Now it might be a little off center, but as we tighten these down it'll kinda pull the plug into the right place and get it nice and flush to the side of our camper. Everything tidied up, we wanna make sure that our door opens and closes all the way and snaps nice and closed. In this case it does. So we're ready to plug in our cord, hook up to our power and enjoy a nice weekend. That's gonna conclude our look at an installation of our smart plug..

Customer Satisfaction Score:

Ratings & Reviews

4.8

222 reviews
Review sort icon
Get your ride SmartPlug ready. Replaces the fiddly twist lock inlet with a more secure and safe connection. Plug in with ease and have one less thing to worry about. Installs into the same footprint as a standard inlet with no modification needed.

by:

The high quality kit install was very straightforward to install on my Sprinter van and should give many years of safe camping. Very pleased.



by:

I haven’t installed the SmartPlug yet, it’s a bit cold for that. I have inspected the plus though. It’s a snug fit! So much better than the one in my trailer. I love how fast it got to my hous also Thank you for your service. Michael



by:

I'm giving this Smartplug cord and the Smartplug male trailer wall socket a 4-star rating, but not because the product isn't EXCELLENT. IT IS! On this 2-week camping outing, we have nearly lost our 37-ft. Rockwood Signature travel trailer TWICE to fire, due to the common, everyday 'Twist LOC" RV socket and matching cord overheating while operating our 50-amp trailer on 30 amps (coming between 2-3 amps of 30 amps, but not OVER 30 amps.) The standard 50 amp female power cord end and male plug installed into the side of the trailer MELTED while running on 30-amp service, drawing 26 to 28 amps continuous when both A/Cs were cycled on at the same time. Neither the cord itself nor the trailer's power feed cable ever got hot--ONLY THE CONNECTION where the power cord and trailer plug MEET. It nearly started a fire in the rear wall of our trailer. Melted wall insulation, charred the edges of the fiberglass siding and nearly burned the underlayment underneath the skin. Fortunately, it was NOT a wood product. Both the female cord end and the wall connector plug were melted and charred. Both were replaced by the mobile RV tech who does all of our RV work (I am disabled.) The new cord and trailer plug then melted again 24 hours later. I ordered this Smartplug cord and trailer plug from Etrailer and got it in 4 days. Since new Smartplug cord & plug were installed, I am still pulling 25-28 amps when both A/C compressors are running, but I can feel very little heat on the outside or inside (where the trailer wiring is run into the wall), and the highest temperature I've recorded with the laser temperature gun is 102.5 degrees (high air temperature has been 95 degrees). PROBLEM SOLVED!! The only reason I gave these Smartplug items 4 stars is because of their COST!! The 30ft. Smartplug trailer cord and accompanying male trailer wall socket cost me $718!!! That's pretty close to RIDICULOUS!! They DID, however, SOLVE MY OVERHEATING WIRING CONNECTION PROBLEM!! Read the Smartplug ads and watch their YouTube video from eTrailer (can be reached on eTrailer's website). THEY AREN'T LYING!! Smartplug saved our very expensive RV!!



by:

Very good so far. Installation of the power cord was harder than I thought- but eventually got it done. I am overall very happy with my purchase.



by:

I installed on my travel trailer yesterday and very impressed with the quality of this product. Very happy with this.



by:

I love it, noticeable difference of power when charging.



by:

I found the installation of the inlet easy and the modification of the connector very easy. The instructions were very easy to follow and very comprehensive.

The only issue was the rear cover (pictured) for the inlet could not fit at the front location of may 2019 Airstream Flying Cloud 27 ft. FB. I also installed the cable port.



by:

Was a little tight but lubed inside the plug holes and works great now.



by:

This is one of the best engineered products I have purchased in a long time. The quality is excellent with clear easy to understand instructions. Highly recommend Smart plug products.



by:

Well instead of part number sm67fr I was sent b30assynt I guess that's the upgraded part. But this was 2nd b30assynt that the d rings didn't open enough to except 10 gauge strand . Had to flie d rings some and plastic cover. Will see how long it lasts. It did come in time from e trailer.



by:

better than the stock 50 amp connector. Cutting and fitting 8awg wire was the hardest part to fit into the plug. The rest was easy.



by:

awesome product, highly recommend, etrailer has been great through the whole processit took about 45 minutes to install as my 5yr. old great grandson was helping me,



by:

It is so easy and quick to hook up power when arriving at the campground. Just as easy to disconnect. Had 2 days of rain, just over an inch, and no issues with water intrusion. My wife used it for the first time and said is that it! Yes, it is expensive, but worth it.



by:

Easy to install, very firm connection to trailer. Much, much better than the old twist-on 30 amp plug and inlet



by:

Product appears to be of excellent quality and very sturdy. If only the RV manufacturers would install these at the factory. I will be installing this over the weekend.



by:

I just installed the smart plug on my Airstream this morning. It was very straightforward with the instructions. This new smart plug is easier to deal with when you are attaching it to the cable with the way the lock nut holds the cable in place going into the back of the plug.That was a pleasant surprise. I like the new design. Pleased so far!



by:

I like this way more than the old twist one. Like the 2 levers on the sides that lock it in. Color coded for simple hook up, made my own 15/20amp dog bone in addition to my 50amp. Not looking back.



by:

The installation and instructions were straightforward on this plug. Very happy with e-trailer shipping as well. Always on time and the package always looks good when arrives. The trailer you know what you're doing. Definitely keep up the awesome work.



by:

This is the exact part I needed to replace the original Smart Plug receptacle on my 2023 Basecamp 16x (which became damaged due to a loose wire). Customer support, price, and shipping speed from etrailer was great. I will say the new rear cover on this item was a little tricky to install, but it was doable with a little patience.



by:

This Smart plug inlet plug is true to size. I've used the Smart Plug system on other RVs and am familiar with the better contact area. I was delighted to see that this plug fit inside the connection center of my campervan, and still be able to close cover with no bulging.



by:

The quality and design is fantastic. The cover feels soild not flimsy or cheap. Easy install . Have not taken it out yet but looking forward to going out and not dealing with the threaded ring that never felt secure.



by:

I thought this was rather expensive until I received it. Very well built and so much more solid than the plastic one that came on my 5th wheel. My only complaint is that I wish there were an option for a 90-degree bend so the cord would hang from the plug rather than stick straight out. The weight of the 50AMP cord may cause an issue over time, but we will have to wait and see. My old connector was at 90 degrees, and it appears they offer this in the 30AMP option.



by:

Easy to install and so much better of a system to hook up power, plug and go. Highly recommend the Smart Plug for safety and ease of use, plus looks good too.



by:



by:

This plugin is easy to install and is a great upgrade for the RV. I feel safer with this plugin it is more durable then the original one that came with our RV.


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See what our Experts say about this SmartPlug Shore Power Inlet

  • Does etrailer Offer Any RV Power Cords Made In The United States
    Yes, the SmartPlug line of power cords and all of their other accessories are all made here in the United States. Since you were looking at a 50 amp power cord you would need the SmartPlug RV Power Cord - 50 Amp - 30' # SM86FR along with the correct power inlet. Since you have a 2018 Airstream Flying Cloud Travel Trailer you'll most likely want the stainless steel inlet # SM79FR, but we also have a few other color options if you'd like: Black # SM56FR White # SM89FR Gray # SM29FR
    view full answer...
  • Power Inlet Needed To Add Shore Power To An Enclosed Trailer
    If you're only wanting to setup AC service in your enclosed trailer then you could choose pretty much any 30 or 50 amp power inlet you wanted and then just run the appropriate gauge wire between the inlet and your panel. You can definitely install a 50 amp inlet and then just use a 50 amp to 30 amp adapter whenever you're at a site with only 30 amp service. You could use the Mighty Cord Replacement RV Power Inlet - White # A10-50INVP or # A10-50INBKVP for black. You'd need a minimum of...
    view full answer...


Info for this part was:

Employee Andrew K
Installed by:
Andrew K
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Wilson B
Updated by:
Wilson B
Employee Cody B
Updated by:
Cody B
Employee Amanda M
Edited by:
Amanda M
Employee Halie H
Written by:
Halie H

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