bing tracking image
  1. RV Power Inlets
  2. SmartPlug
  3. 50 Amp Male Plug
  4. Power Inlets
  5. Black
  6. Square
SmartPlug RV Power Inlet - 50 Amp - Black
SmartPlug

SmartPlug RV Power Inlet - 50 Amp - Black

Part Number: SM56FR
In Stock
$130.06
Retail:$188.57
You Save: $58.51
RV Power Inlets
Add to cart
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Videos

Need help with installation?
Locate installers near me
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 Power Inlet - 50 Amp - Black part number SM56FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (151)
  • Q & A (0)
  • Photos

SmartPlug RV Power Inlets - SM56FR

  • 50 Amp Male Plug
  • Power Inlets
  • Black
  • 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 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
  • Black 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.




BM50PB SmartPlug 50 Amp - Non-Metallic Inlet w/ Black Cover Assembly





Customer Satisfaction Score:


Customer Reviews

SmartPlug RV Power Inlet - 50 Amp - Black - SM56FR

Average Customer Rating:  4.9 out of 5 stars   (151 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:

arrived on time, already installed on my enclosed trailer conversion to laundry room :D



by:



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:

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 old style RV plugs are prone to have connection problems which causes melting of the unit. That happened to me in below freezing weather and we lost power to our trailer. This new plug will not have that problem. It fits together solidly and I don't worry about any loose connection. I have seen that the SmartPlug is now standard equipment on Airstream trailers. That's quite an endorsement. You Cann't go wrong with the SmartPlug system.



by:

After a year I really like this SmartPlug system. Was easy to install. And it works great.



by:

I have on several occasions experienced times when my electricity inside our RV wasn't working. It would inevitably be because the connection from shore power to the camper was loose. I just installed my new SmartPlug today and already feel confident in the connection. Purchasing from etrailer was easy and the product shipped in a timely manner.



by:

etrailer kept me in the loop on the backorder of the black SmartPlug, I understood the supply chain, but it was nice to be updated on the timeline for shipment. So nice for a company to keep you in the loop without having to chase the details!



by:

When saw this of course I said I wanted it. This make hooking up a lot easier and I feel more secure about the electrical connection. Now my friend wants me to change his. The conversation was very simple.



by:

No complaints. Got what I ordered, installed it and it worked. SmartPlug 30amp white.



by:

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:

Excellent customer service on the part of eTrailer. Had to exchange the stainless steel model for this one because of fitting issues. Product itself is well constructed and exceeds intended purpose!



by:

The Smart Plug is a quality upgrade to our Airstream. It looks good and was an easy quick install.



by:

Easy to Install. Clear instructions but you can also find install videos on YouTube. Stainless cost slightly more than the plastic version but looks great on my Airstream.



by:

Superior to all other shore power inlets! This system is amazing.



by:

The SmartPlug installed great and after a year of heavy use continues to perform perfectly! Electrical hookups are now quick and positive with solid connections!



by:

Purchased connector at customer's request. I'm impressed by the quality of the product.



by:

Excellent product easy to install with the direction took about 45min.



by:

E trailer is my go to shop for many of my components and appliances in my Van Builds. Their prompt delivery and customer service is excellent. Their consistency is something I can depend on Van to Van to Van.



by:

I received at least two emails updating me on the shipping dates and another one when it shipped. The Smartplug was on back order and they kept me up to date.



by:

Can’t wait to get it installed. Looks like quality materials and ease of installation per videos.



by:

It's installed but still building trailer so have not gotten to use it yet. Will Update when i do!



by:

Delivery was a few days later than it said at first. Otherwise, product was what I ordered. No hardware sent with the inlet which was frustrating, why on earth wouldn't the company include the mounting screws?! Works fine otherwise.



by:

Great quick install!!



by:

Excellent product. Install was not difficult. .definitely an upgrade from the original 50 amp plug.


25
148
Show More Reviews

See what our Experts say about this SmartPlug RV Power Inlets

  • Where Are Mighty Cord Power Cords Made?
    The Mighty Cord RV Power Cord # A10-5025ED90 is made in China. Don't let this discourage you though. This is a well built and sturdy power cord and I have not had any issues with their products brought to my attention. That said, if you are looking for American made products, we do have the SmartPlug line available. The SmartPlug RV Power Cord # SM86FR would be the most similar to the Mighty Cord you were looking at, but SmartPlug uses a proprietary male port so you would also need to...
    view full answer...
  • 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...
  • Is Box Needed To Install SmartPlug RV Power Inlet?
    All of the SmartPlug RV Power Inlets such as the # SM56FR you were looking at attach directly to the exterior wall of your RV, and there is no box compatible with them. I included a video of this plug being installed for you to take a look at.
    view full answer...
  • Does the SmartPlug RV Power Inlet Require a Special Cord to Connect From Shore Power
    Yes. In order to use the SmartPlug Replacement RV Power Inlet - 50 Amp # SM56FR you will need to replace your old twist lock power cord with a SmartPlug RV Power Cord - 125/250V - 50 Amp - 30' # SM86FR.
    view full answer...
  • Is SmartPlug 50 Amp Female Plug Assembly Available By Itself
    Thanks for reaching out, Glen! To get the plug side of the SmartPlug RV Power Inlet - 50 Amp # SM56FR you were looking at, you just need the 50 Amp Female Plug Assembly # SM36FR.
    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...

Do you have a question about this RV Power Inlet?


Info for this part was:

Employee Jacob T
Video Edited:
Jacob T
Employee Amanda M
Edited by:
Amanda M
Employee Halie H
Written by:
Halie H
Employee Cody B
Updated by:
Cody B

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.