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SmartPlug RV and Marine Power Inlet - 50 Amp - Stainless Steel

SmartPlug RV and Marine Power Inlet - 50 Amp - Stainless Steel

Item # SM79FR
Retail:$219.90
Our Price: $164.43
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RV Power Inlets
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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 rv power inlets from SmartPlug. SmartPlug RV and Marine Power Inlet - 50 Amp - Stainless Steel part number SM79FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (51)
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  • Videos (2)
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  • Why etrailer?

SmartPlug RV Power Inlets - SM79FR

  • 50 Amp Male Plug
  • Stainless Steel
  • Power Inlets
  • SmartPlug
  • Square

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 external metals 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
  • 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.




BM50S SmartPlug 50 Amp - Stainless Steel Inlet w/ SS Cover Assembly





Video of SmartPlug RV and Marine Power Inlet - 50 Amp - Stainless Steel

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




Video Transcript for SmartPlug RV and Marine Power Inlet Installation

Hi there Cameo owners, today on 2009 Cameo by Carriage. We're gonna be taking a look at and showing you how to replace your old twist style 50 amp shore power connector with a 50 amp stainless steel smart plug shore power connector. And this is what our smart plugs looks like when it's installed. We do have it mounted in a sideways orientation because that's how the previous connector was. And that's due to this trim here. The lid wouldn't be able to fully open, making it difficult to insert your plug if you did have it in the upright position here.

Since there was already a whole cut here we couldn't really maneuver it around too much without exposing some areas there. And it's okay to Mount this sideways, it's not gonna hurt it any, I wouldn't recommend plugging it in or mounting it upside down to where it opens this direction. That's probably not the best way to go about it but it does, if you look inside, we do have a seal that runs all the way around the inside here and a big lip to keep moisture out. So regardless of the way you mount it, it should not have any moisture enter inside of it. It's not a spring loaded door like you would find on like a seven-way connector or something on a trailer.

This one has, it's almost like a cammed mechanism in here. It has like stiff spots that hold it in that spot. And then it kind of gets easy and then has another stiff spot. So right here, it's in a stiff spot that holds it's shut. Once we get it past it, it's kind of loose right here.

And then there's kind of a stiff spot right there. And then it gets loose again. And then there's another stiff spot. That way the thing's not loose and floppy, it's not gonna shut on you. It's got kind of like set positions, like a fully open one.

There's kind of like a three quarter one, one about there and then your closed position there. And each of those positions, it is fairly sturdy. So I don't think you should have to worry about this thing coming open on you when you're going down the road. It is a stainless steel Marine grade plug. So it is designed to keep the moisture out and withstand the elements here. It's much heavier duty than you would find on the traditional ones that your campers normally come with. The one that we had removed is made of like a composite type material, it almost has like, somewhat of a slight fiberglass quality to it. But the other one kind of busted up, it's not nearly as durable as the stainless steel one there. With something like this, the previous one had busted because you could kind of tell based on the damage that was done, it looked like had a connector had been plugged in and an impact had occurred on it and bent it back this way, it had sheared off one of the bolts and it busted that plastic all up. Something we're to hit here, more than likely, it just kind of bend it and move back. It wouldn't likely break our connector here. You'd probably end up breaking something else, some a weaker component 'cause something's gotta give somewhere. So this is nice and heavy duty, helps you keep this safe, seals ya up and it uses these smart plug connector in. So it looks a little bit different, this is the 50 amp version. Doesn't look like your traditional 50 amp plug. So you will need to make sure you have the appropriate mating end to plug into that there. And you can get those eTrailer, you can see some quick connect with these smart plugs, you simply just pull these things, that makes plugging it in and unplugging it significantly easier than the traditional style that you have to screw into place. You kind of put it in, twist it to lock it. Then you gotta screw that little nut on there. So even with those plastic ones where you're screwing that little nut on, you know how often those things seem like they don't wanna catch right with the threads and you end up kind of cross threading and just, you know, fumbling around then you could end up breaking it. With this here, it's so much simpler and easier, just grab that connector out and it's it's as easy as that, it just plugs right in. It is a very big, heavy duty cable. So you just wanna keep that in mind, it is kind of heavy. So you probably wouldn't want somebody smaller or younger to mess with this 'cause it is pretty heavy, but you can see it's nice and secure. Now that we've got it in there it's not gonna come off of there. We get feedback on these smart cables as well when they're plugged in, so we can know that we are getting shore power. That's pretty useful because when you see that the cable is lit up here, once you plug it into the camper, you would expect the camper to turn on. So it's nice to get that real time feedback to know too. Hey, you know, why am I not getting power You can tell, Hey, is it the shore power that's not coming on Just help you out a little bit to determine if you have issues on your trailer side or if it's the campsite side. We'll begin our installation here at the back of the vehicle. So we're gonna get this old one off and we're gonna get our new one on. We are gonna be switching it over to the smart plug design. You just wanna keep in mind with these. It is a different end. There's your 50 amp end right there. And this is our 50 amp smart plug end here. So you can see they are different. You will have to make sure you get the appropriate cable to plug in here as well. So if you're trying to use your old cable and you're gonna go to one of these, you need that new cable to make it work. We do sell the cables here at eTrailer, so you can do that. Let's go ahead and get this one off of here. So we've made sure that we've got everything disconnected. Our battery's disconnected. You definitely don't want to have, like, your inverter or anything running. Don't wanna be plugged, well, obviously we're not plugged into shore power but we wanna make sure we're got this thing fully de-powered, we don't want to have any accidents here. We can then get this open and start replacing our cable. Down inside of our plug here, you'll see you have a flat head screw there and one on the opposite side, so we're gonna remove those. So once we get those loose, they actually don't pull all the way out of there. Just when it doesn't seem like it's coming out any further, it's probably all the way screwed out, but they don't pull all the way out and you can slide the sheathing here back. And I actually had to kinda like twist this back and forth a bit to get it to break loose, it was pretty stuck on there. But once we get that pushed back, we can now access our wiring in there and get that disconnected from here. So we'll move our relief off of there. And now we can just start removing the wires. We use our flat bladed screwdriver to take these out. So we got a black, a red, a white, and then you've got your bare wire there. So we just need to make sure when we remove these, we hook them up to the appropriate ones on the other side, I'm gonna go grab a screwdriver here, so we can get this end off of here and we'll also get the rest of this off of our trailer here. And we'll just remove these and it's so taped up in here. Probably not gonna be able to pull 'em out one at a time 'cause the wires are so stiff. So. Just gonna loosen them up, working our way around here. And we should be able to pull 'em all out of there. All right there they are, all exposed. So we can connect it to our new one. I'm probably gonna remove some of this electrical tape on here. You can pull that off of there, you shouldn't need that anymore. And I will remove the screws for the cover here and get this off as well. I would say based on, oh, that little tiny screw there. I kind of figured that was a full length screw. And I figured based on the angle, it was indicating that something had hit it. Let's take a look here. Oh yeah, something definitely hit it. You can see the screw has been sheared off. So that's where the damage had occurred from. And it kind of looks like the rest of the self tapper is still in there. We might be able to get lucky, and if we put a self tapper right behind that, sometimes the screw or the bit end, where it's cutting into it, will grab that other self tapper and it may thread it straight on through for us. We'll just have to see or we might have to extract it from there. Our housing here, it's in pretty rough shape here, so I'll just get this off of here. It should just be a foam pad that's on here, so it should pull off of there fairly easily. There we go. All right. So we're gonna see what we can do here about this guy. Whether we have to drill this out or we'll even see if our new plug, it's possible that our new plug here, the screw holes may not line up with the old screw holes and we don't may not have to address it at all. So let's just kind of get an idea here. If we put this here, let's see if it will sit above it. You are gonna have to put it off to the side, like our other one, I think we're just gonna have to make our connections here and then we'll have to stick it up there and just kind of assess. It's looking to me though, like our holes don't quite line up, so it might be good for us. We'll just have to see when we get there. So now we gotta make sure we got our appropriate wires connected here on back. They made it nice and easy for us and they've labeled them all with colors. So black will go to black, red will go to red, white will go to white and green. It will either go to green, if you have green or it will be a bare solid core like this. If you don't have green, sometimes it's just bare. So we'll just slide these in and we'll make our connections. The smart plug does come with an Allen wrench and we'll be using that to secure these. Take your Allen wrench and we're just gonna look done in there. We can see they are somewhat open, but we're gonna open 'em up further. So we're gonna turn it counter clockwise to increase the size of the opening here to make it easier to slide our wires in. It feels, when I'm unscrewing these two, it feels like they made these set screws here, almost like they're slightly out around to make it kind of like a like a locking nut, in a way, you can feel it's stiffer as you're going around with it. So that's kind of a nice idea there to help ensure that these do not come undone down the road. I did notice here too, it's a little harder to see, but it does actually have beyond the color, it has our labels here. So for line one, line two, neutral, and ground. They're transparent into the molding here on the back. So it is kind of hard to see. I had to have it at just the right angle with the light hitting it for me to even notice that it was there. Before we slide our wiring in, we wanna make sure we slide our gasket on first. And now we're just gonna slide these together. These wires are so thick that you're probably gonna wanna do like you did before when we removed it and try to get 'em to all line up and slide in at the same time. Our ground here is a little bit easier to maneuver. So it's not as important as our other larger wires there. Looks like our red's wanting to stop on us. We'll open it up a little more. All right, that's looking pretty good. Got our red wire in there pretty far. We'll go ahead and snug this one down. You do wanna make sure that when you're snugging this down, you're not snugging it on the sheathing. I wanna make sure we're snugging it on the exposed part of the wire. But if you can, you wanna try to make it to where there is no exposed wire sticking out the back here. All right. So we got all those tightened down now, we are ready to insert our plug and then let's kind of take a look here, how our screw holes end up lining up. So unfortunately for us, it looks like our screw holes did line up exactly with what we had there. In most cases, that's gonna be great, you just put your screws back in. So we're gonna have to address this broken screw here. So I'm gonna try see if I can't drill that out of there or potentially we're gonna self tapper in and see if it might grab it and thread it straight on through for me. So now that we've got all these tightened down, we can slide our gasket down here and you can peel this off. I actually have to peel it off up here and we're gonna stick it to the inside edge of our connector here. I'll just go down around connector, just line it up on the outside and then stick that in place. And then you can take your old bolts if you want to. And you can just poke those through there to poke the little center pieces out. That'll just help it sit a little bit more flush against the camper. Cause we push the screw in and this kicks off to the side, it could leave like a little seam or something there. All right and then we'll just put it back up there, line it up with our holes and then screw it down. We we're able to get that broken screw out of there. I did have to cut a little notch out of the sheet metal and I was able to just unthread it with a pair of needle nose. Our connector here is gonna cover all that up. So we won't be able to see anything like that there. And I also got some other screws here, we're gonna see if these will fit. Looks like they'll end up being, maybe, a little bit too thick on the diameter here. So we'll just have to reuse the screws that he had then. And run these back in. We are gonna have to find one new one for the one that was broken down here. I'd like to start a couple of 'em that'll hold the connector lined up for us with our existing holes and then I'll run these two in. Not running it super tight just yet, so that way it's loose enough for me to maneuver that to line up with our other ones and we're gonna find ourselves an extra screw for our missing one. So I was able to find us a screw that will work. So we can just thread that right in there. And we're just kinda going back and forth since this is threading into both the wood and the sheet metal on most of these. The one down here is only gonna be into wood. So we're trying to just draw it in even so we don't pull that wood out of there. Nice and solid on our connection there. He still has a little bit of impact damage. You could probably touch that up with some paint and we're ready to plug in our motor home here with a smart cable into our shore power connect here. All right, we got our smart plug cable here, plugged in, verified, we do have power here at the shop. Let's go ahead and plug her on in. And it's that simple with the quick release latches. It just latches in place, no more threading to ring on there, anything like that. Finding out that every time you try to thread it on, you end up cross-threading it, those plastic ones, you know. This is way easier and get this nice heavy duty cable here. You can get this here at eTrailer. This is a 50 amp, 30 footer. It does not come included with your smart plug connector. So again, you just can remember, you're gonna have to make sure you get the appropriate cable to plug into this. And then the other end of our cable is your standard 50 amp that you would plug into the shore power connector at the campsite. So we've got our plug currently plugged in but we wanted to show you that it is working here. If I unplug the plug from our trailer, you can see that our converter turns off. It's no longer charging our battery, our voltage drops there. I'm gonna go ahead and plug it back in and you'll see that the battery charger in our trailer kicks back on and it starts bringing our battery voltage back up again. All right, well, now that we've tested it out, we verified that it's working, we know that it's charging our batteries, so we're all good here. The last thing we're gonna do, I'm gonna go ahead and unplug it and we're just gonna run a bead of silicon across the top of our connector here, kinda running down the sides a little and that'll just help to prevent any moisture from entering inside of it. We're just gonna be using some clear silicone for this. So we're just gonna start kind of right here on the side. Lay a bead all the way down. And that completes our installation of the 50 amp stainless steel smart plug shore power connector..


Customer Reviews

SmartPlug RV and Marine Power Inlet - 50 Amp - Stainless Steel - SM79FR

Average Customer Rating:  4.8 out of 5 stars   (51 Customer Reviews)

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:

Review from a similar SP Power Inlet in RV Power Inlets


I Just installed this today. This plug is awesome! It is part of my mouse proofing project. Mice were coming in thru the the old cable opening. That is another story. The directions on this were easy to follow and clear. I didn’t think my cord would fit in the strain reliever but with enough soap it did. The only suggestion I have is that they include 4 stainless screws to fasten it to the camper. My only regret is not doing it sooner.




by:

Review from a similar SP Power Inlet in RV Power Inlets


I really like the SmartPlug! I kept noticing the old plug would turn sometimes in the socket and just about unplug itself. The SmartPlug is always secure and easy to unplug when you are ready.




by:

Review from a similar SP Power Inlet in RV Power Inlets


Excellent replacement for the cheap outlet and plug that most RV makers use. I have no worry about a bad connection overheating and causing a fire. Connecting and disconnecting is quick and easy.




by:

Review from a similar SP Power Inlet in RV Power Inlets


I was having issues with the electric connection at the trailer. The ring around the male plug wasn't keeping the plug right to the trailer causing a couple lower outages in the trailer. This plug combination totally cured that issue. When plugged into trailer, it's a tight positive, locked fit. When electrical connections are loose, they cause heat. Could very well cause a fire. I eliminated that connection problem with this plug!!!! Highly recommend.




by:

Review from a similar SP Power Inlet in RV Power Inlets


Replaced my connector and seems well built. You should assemble it over something to catch dropped screws.




by:

Review from a similar SP Power Inlet in RV Power Inlets


Great products @ great prices and great service!




by:

Review from a similar SP Power Inlet in RV Power Inlets


Excellent improvement over OEM 30A conn ection




by:

Review from a similar SP Power Inlet in RV Power Inlets


Expensive but very high quality. I had the type with a cover and non detachable cord. Had to make a plate from starboard to adapt the hole.




by:

Review from a similar SP Power Inlet in RV Power Inlets


First purchase with Etrailer. Great experience. Packaging perfect. I’ll definitely use them again!




by:

Review from a similar SP Power Inlet in RV Power Inlets


Great plug and setup. Definitely the way to go.




by:

Review from a similar SP Power Inlet in RV Power Inlets


Works well and provides peace of mind knowing that a good electrical connection has been established.




by:

Review from a similar SP Power Inlet in RV Power Inlets


Great product, great service by eTraile r!




by:

Review from a similar SP Power Inlet in RV Power Inlets


I’ve been using a smartplug for three years now. It’s been amazing and has outlasted the old twist lock style. My connector still looks brand new. But I ordered this to upgrade to the stainless housing since the plastic one became brittle. It’s worth the extra money for stainless! And this is the best price I found for them.




by:

Review from a similar SP Power Inlet in RV Power Inlets


Really like these plugs much better than the twist type factory installed.




by:

Review from a similar SP Power Inlet in RV Power Inlets


Efficient, strong and will last a long time




by:

Review from a similar SP Power Inlet in RV Power Inlets


I haven’t had a chance to install the smart plug power inlet and connector yet but based off of videos and reviews I have no doubt it will be huge improvement from the twist lock and plastic wring I currently have. Will update again once installed




by:

Review from a similar SP Power Inlet in RV Power Inlets


Great connector! Solid, easy to use. Much better way to connect,




by:

Review from a similar SP Power Inlet in RV Power Inlets


Just 4 stars for packaging and instructions. HAVE NOT INSTALLED the product yet. will re-review when that happens.




by:

Review from a similar SP Power Inlet in RV Power Inlets


Nice plug it is very well made.




by:

Review from a similar SP Power Inlet in RV Power Inlets


We've owned 4 trailers and the last 3 have all been retrofitted with the smart plug. I'm sold on this product.




by:

Review from a similar SP Power Inlet in RV Power Inlets


Part was as described. Came in timely manner worked perfect




by:

Review from a similar SP Power Inlet in RV Power Inlets


Really like this product and delivered quickly




by:

Review from a similar SP Power Inlet in RV Power Inlets


Fantastic product and company




by:

Review from a similar SP Power Inlet in RV Power Inlets


Looks excellent!
We will put it together
next week!




by:

Review from a similar SP Power Inlet in RV Power Inlets


Product arrived earlier than projected and fit perfectly



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51
Show More Reviews

See what our Experts say about this SmartPlug RV Power Inlets

  • Can SmartPlug RV and Marine Power Inlet SM79FR Accept 6 Gauge Wire
    Yes, the SmartPlug RV and Marine Power Inlet # SM79FR can accept 6 gauge wire.
    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...
  • Converting RV From 30 Amp To 50 Amp
    Short answer, yes you can convert from 30amp to 50 amp. It will be costly and require an electrician. Long answer, you will need to replace the power outlet with SmartPlug RV and Marine Power Inlet - 50 Amp - Stainless Steel # SM79FR. Then replace the existing wiring to accommodate for the extra amps. You will need a new power cord like SmartPlug RV Power Cord - 125/250V - 50 Amp - 30' # SM86FR. You will need a control center like Progressive Dynamics RV Power Control Center with AC/DC...
    view full answer...
  • Installation of Progressive Dynamics # PD4560K18LS8 and Inverter Connection
    The Progressive Dynamics RV Power Control Center with AC/DC Panel and Converter/Smart Charger - 60 Amp, # PD4560K18LS8 that you linked to, will provide a full 60 Amps of DC charge to your battery bank. This is to be used with a 50 amp AC inlet such as the SmartPlug RV and Marine Power Inlet, # SM79FR. It is a 2-in-1 AC/DC distribution panel and converter charger that will power systems inside the RV and is compatible with either lithium or lead acid chemistry battery banks. The panel supplies...
    view full answer...

Do you have a question about this RV Power Inlet?




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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Jacob T
Video Edited:
Jacob T
Employee Amanda M
Edited by:
Amanda M
Employee David F
Test Fit:
David F
Employee Halie H
Written by:
Halie H
Employee Michael B
Installed by:
Michael B
Employee Cody B
Updated by:
Cody B

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