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SmartPlug RV Power Inlet - 30 Amp - Gray
SmartPlug

SmartPlug RV Power Inlet - 30 Amp - Gray

Part Number: SM37FR
In Stock
$128.70
Retail:$143.00
You Save: $14.30
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 - 30 Amp - Gray part number SM37FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (222)
  • Q & A (0)
  • Videos (2)
  • Photos

SmartPlug Shore Power Inlet - SM37FR

  • 30 Amp
  • Power Inlets
  • Gray
  • 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
    • 3-Prong male inlet accepts SmartPlug 30-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
  • Gray color
  • Made in the USA


Specs:

  • Amperage: 30 amps
  • Voltage: 125 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.




BM30PG SmartPlug 30 Amp - Non-Metallic Inlet w/ Gray Cover Assembly





Video of SmartPlug RV Power Inlet - 30 Amp - Gray
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 All You Need to Know About the SmartPlug RV Power Inlet

Hello everybody, this is Jeff at etrailer.com. Today, we're gonna take a look at the SmartPlug 30 amp RV Power Inlet. Now, this inlet here will let you plug in your SmartPlug cord to power your RV or your boat. You can see it is a 3-prong male inlet, and it'll accept the SmartPlug 30 amp female connectors which we do sell separately on our website, and I did wanna pop up an insert just to show you, there's one of those connectors on that cord there, and that's what'll plug right into here. Now, this inlet has a multi-point lock system for secure connection of that female connector, so when you plug that in, you'll notice there's cutouts here at the bottom on each side, so when it plugs in, it'll lock it into place to keep it connected. It is a straight-in, single-step operation, means no more twisting or fiddling with locking rings, and this design or the plug shape will take any guesswork out of how you connect it, so it's very simple to use even in the dark.

The flat electrical pins, they'll give you 20% more contact area compared to the curved pins and twist locks, and this will reduce the heat that's caused by electrical resistance. The cover on this, you can see the cover, this inlet cover will snap down onto the plug body, you can see right here, once you plug your plug in, this will go down over it and help hold that plug into place, helps reduce any strain on the cable, and it helps stop the plug from being yanked out accidentally. And if you noticed on the top of that cover, there's a rubber seal here that'll go down over this and help keep it safe from any elements when it's not being used. Now, they do use high quality materials which will hold up at extreme climates or out on the water. They use marine-grade stainless steel components that'll hold up season after season, they use nickel-plated brass electrical pins and tinned wires to resist corrosion, and all the plastics on this are UV and heat resistance.

It is a very easy installation, only requires four screws and three wires connection, and it is size to fit standard inlets, so you can use the same screws and holes. If you noticed, it does include this nice rubber gasket, and this will help seal the inlet when it's installed. So basically, what you'll do is put this up here, and then when you go to install that, that'll help seal it. This is a nice gray color, it is made in the USA. Few specs on this, amperage on this is 30 amps, voltage, 125 volts.

But that should do it for the review on this SmartPlug 30 amp RV Power Inlet..

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:

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:

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:

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 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.



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On time and exactly what I needed



by:

Fantastic product and company



by:

Easy process, glad I bought thru etrail er.com.



by:

Quality product. Easy installation



by:

very high quality and easy installation.



by:

Received it quickly, easy install.



by:

Best plug ever. Industry should all change to this plug!



by:

Works as indicated. Easy install.



by:

Exact replacement great service



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.


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See what our Experts say about this SmartPlug Shore Power Inlet

  • Is The 30 Amp Smart Plug Available With A 90 Degree Plug?
    Hello Ed, thanks for reaching out. The 30A SmartPlug shore power cords, including # SM37FR, are only available with a straight coach-end connector, so there isn’t currently a 90-degree option for the RV side. I have heard that Smart Plug has plans to develop a 90 degree version, but there is currently no ETA for that.
    view full answer...
  • Recommended 30 Amp SmartPlug Angled RV Power Cord
    Hey Mike. The 30 Amp SmartPlug Angled RV Power Cord item # SM22YB is not available in a combination kit. You'll need to purchase one of the power inlets separately. We have three different color options that I have listed below: SmartPlug RV Power Inlet - 30 Amp - Black item # SM97FR, Gray item # SM37FR, and White item # SM57FR. What kind of trailer do you have? You can add this information, along with any other questions you have, where it says Reply to Jerred H.
    view full answer...
  • Mounting Hole Dimensions of a 30 Amp SmartPlug RV Power Inlet
    Hey Jaime, welcome back! I can give you the dimensions of the 30 Amp SmartPlug RV Power Inlet item # SM97FR so you can compare them to the ones on your 50 amp power inlet but I can't tell you if it's going to match up to the holes. I don't have anyway of knowing what brand 50 amp inlet you have. SmartPlug markets their power inlets as being able to match standard twist-lock inlet footprints but I strongly recommend taking some measurements to confirm. The mounting holes are spaced 2.44"...
    view full answer...
  • Replacement SmartPlug Power Cord Connector Plug Assembly
    SmartPlug labels their parts backwards so I assume you're looking for the SmartPlug Connector Plug Assembly for RV Power Cords - 30 Amp Female # SM47FR, which would go on the power cord. If you're looking for the inlet then you would need one of the following color options: White # SM57FR Gray # SM37FR Black # SM97FR Stainless Steel # SM24FR
    view full answer...
  • Availability of 30 Amp 110 Volt Power Inlet
    The SmartPlug RV Power Inlet # SM37FR that you referenced is a 30 amp power inlet designed for 110 voltage like you also mentioned.
    view full answer...


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Joshua S
Video Edited:
Joshua S
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 Jonathan Y
Video by:
Jonathan Y
Employee Halie H
Written by:
Halie H
Employee Kevin C
Test Fit:
Kevin C

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