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  1. RV Power Inlets
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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
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Retail:$199.00
Our Price: $150.44
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RV Power Inlets
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Shipping Weight: 1.76 lbs
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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. Lowest 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 1-636-306-4830 for expert service.
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  • Reviews (27)
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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 Review of SmartPlug RV Power Inlets - Stainless Steel 50 Amp Inlet - SM79FR

Hi there, I'm Michael with etrailer.com. Today, we're gonna take a quick look at this Smart Plug replacement stainless steel 50 amp RV power inlet. This inlet will replace your 50 amp 125 or 250 volt AC inlet on your RV. So you can get your RV plugged into shore power. You will need to use the 50 amp Smart Plug power cord. If you don't already have one, we do sell it separately here at etrailer.com.

You can find it using that part number that you see on the screen there. So whether you are wanting to replace your current Smart Plug inlet, or you're wanting to upgrade from the more traditional style twist type, this will align with the inlet holes. So it's gonna be very easy to get installed. They do include instructions to walk you through that whole process. So it's gonna be very easy and straightforward for you to get this installed.

Now, if you're not familiar with the benefits of the Smart Plug system, there are several. One is that because of this proprietary shape, it only goes in one direction. It's gonna be a straight plug-in so you're not gonna have to worry about trying to find the right spot to start and then twist like your older style twist type. It's gonna be very easy to just slide right in place. So even if it's dark outside, you're getting to the campground late, that sort of thing.

It's gonna be very easy for you to get this hooked up. We do have those straight nickel plated brass inlet pins there. And those are going to help maximize your transfer rather than the twist type. These are going to have about a 20 times more contact between your plugin and your inlet here. So that you're gonna have a lot less resistance with your electrical connection.

So it's not gonna heat up. It's gonna be a lot more secure for you. We also have the sleeve design here that is going to bear the weight of your cord. And if you we're to trip over it, that sort of thing, it's gonna hold on to that weight rather than putting that tension force on your pin. So your pins are gonna stay safer and more well connected for you. So you're not gonna have to worry about them wiggling out, becoming loose or damaged. Your inlet cap here is going to connect to the plug when it's plugged in. It'll kind of snap down in place there to help secure it from moving. But you're also going to have on your plug, a couple of locking tabs that will latch onto these sides here. So it's gonna have a nice secure connection for you. This steel cap will form a weatherproof seal on your inlet when you're not using that, when you don't have a cord plugged in, and then it's very easy to open back up to get your cord plugged in there. This plastic is a UV and heat resistant resin. So it's gonna hold up really well for you. Do a great job over time. So, lots of benefits to the Smart Plug systems. If you're thinking about upgrading, or if you're just needing to replace the inlet, this is gonna be a great option for you directly from Smart Plug. So everything's gonna work exactly like the original did. And it is made here in the USA, so you can trust it's made to the high quality standards that we've come to know and trust for products that are made here in the US. Now, for those of you who are thinking about upgrading to the Smart Plug system. You don't already have an inlet, a smart plug inlet on your RV, you don't have the power cable, let me recommend this conversion kit for you. So that is going to include an inlet similar to this one, but then it's also going to have a connector that you can use to convert your old power cord to a Smart Plug cord so that you can get that all set up using your existing power cord. Overall, really great option. Lots of benefits to the Smart Plug system. So, if you are thinking about upgrading your system or if you're needing to switch out from one spark plug to another inlet here, this is gonna be a great option for you. We also have other colors and styles. So if you would prefer a white, or a black, or a gray, we've got those available for you as well here at etrailer.com. So that's gonna complete our look for today. Again, I'm Michael with etrailer.com. Thanks for watching..


Customer Reviews

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

Average Customer Rating:  4.9 out of 5 stars   (27 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 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


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


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


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


Part was as described. Came in timely manner worked perfect




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


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




by:

Review from a similar SP Power Inlet in RV Power Inlets


Heavy duty product, fast shipping and great follow through by etrailer!




by:

Review from a similar SP Power Inlet in RV Power Inlets


Most competitive prices and great communication on order status and delivery dates!




by:

Review from a similar SP Power Inlet in RV Power Inlets





by:

Review from a similar SP Power Inlet in RV Power Inlets





by: 10/29/2021

Review from a similar SP Power Inlet in RV Power Inlets





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Review from a similar SP Power Inlet in RV Power Inlets





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Review from a similar SP Power Inlet in RV Power Inlets





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Review from a similar SP Power Inlet in RV Power Inlets





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Review from a similar SP Power Inlet in RV Power Inlets





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Review from a similar SP Power Inlet in RV Power Inlets





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Review from a similar SP Power Inlet in RV Power Inlets





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Review from a similar SP Power Inlet in RV Power Inlets




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27
Show More Reviews

See what our Experts say about this SmartPlug RV Power Inlets

  • 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 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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