Shore Power Inlet Adapter

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Shore Power Inlet Adapter

Postby JoshInReno » Wed Jun 08, 2011 3:29 pm

My in-laws have a piece of property that we have installed RV hookups at, and I am looking for an adapter that I'm not sure even exists.

What I am looking for is a 30 amp inlet (through the wall type), but on the other side of the wall it should have a regular, 3 prong 120 volt outlet that I can plug things into.

Does such a thing exist and where can I find one?

Thanks in advance.
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Postby madjack » Wed Jun 08, 2011 4:27 pm

...here is a 30A RV inlet http://www.amazon.com/Park-Power-301ELR ... B000E3V9R6
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...you can then wire an outlet strip into the back of it and plug whatever ya want into it......
...or...
...you can get http://www.amazon.com/Marinco-150BBI-Ma ... B000NI38MG
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...and wire it like above and get a 15a to 30a adapter...
http://www.amazon.com/Camco-55233-30M-P ... B00192QB3I
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Postby dh » Wed Jun 08, 2011 6:36 pm

The top one MJ posted will put 30A into the trailer (Special cord required), then a pig tail with a 15A female plug wired into the back to plug things into. Or, the second one, with a 15A inlet on the outside will work with a standard extenstion corn, then a 30A to 15A adapter (lower picture) plugged into the porer post, and again, a pig teil wired to the inside.
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Postby GuitarPhotog » Wed Jun 08, 2011 6:52 pm

If you use that 30A inlet, you will need a shore power cable with a 30A female connector on it.

Be advised 30A extension cords are heavy and expensive! If you don't really need 30A service in your trailer, you're better off using the 15A inlet pictured, a 15A extension cord, and the adapter shown in Madjack's post.

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Postby dh » Wed Jun 08, 2011 9:09 pm

GuitarPhotog wrote:If you use that 30A inlet, you will need a shore power cable with a 30A female connector on it.

Be advised 30A extension cords are heavy and expensive! If you don't really need 30A service in your trailer, you're better off using the 15A inlet pictured, a 15A extension cord, and the adapter shown in Madjack's post.

<Chas>


Take a closer look at that 30A inlet on top, no, a standard 30A female plug will not fit it, its a twist lock, with a lock ring on it. The cord is around $80
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Postby rebapuck » Sat Aug 13, 2011 2:04 pm

Here's my question.

I currently use an extention cord, from the shore power, through an opening. I plug a 6-outlet power strip to it to run fan/heater and a lamp in my VW. I run a second cord, out through same opening, from the power strip to the ttt. This works for me.

I would like to have a small permanent installation, in the side of the bus, that has a 15amp "incoming" and a 15amp "outgoing" beside it.

Anyone seen something like that?
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Postby 8ball_99 » Sun Aug 14, 2011 11:23 am

rebapuck wrote:Here's my question.

I currently use an extention cord, from the shore power, through an opening. I plug a 6-outlet power strip to it to run fan/heater and a lamp in my VW. I run a second cord, out through same opening, from the power strip to the ttt. This works for me.

I would like to have a small permanent installation, in the side of the bus, that has a 15amp "incoming" and a 15amp "outgoing" beside it.

Anyone seen something like that?


Easy thing would be to just install one of those through the wall 110v inlets then you could add an outlet on the outside of the bus.. Honestly I would just install a inlet on the trailer and bus and use two cords from the shore power.. No reason to daisy chain from the TV to the Trailer.. You can buy a pigtail that will split a single 30 amp plug to two 110v plugs..
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Postby rebapuck » Mon Aug 15, 2011 10:46 pm

I daisy chain because I almost always camp with other VWers. That usually means 2-4 buses per campsite and not enough outlets for everyone. I use the 30amp to free up one more for someone else. I use very little power so one power strip will do.
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Postby dh » Tue Aug 16, 2011 4:57 am

I've never seen an 'in and out' inlet/outlet combo, but a simple inlet wired to an interior outlet and an exterior outlet should work for what you want.
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Specialty Connectors

Postby Engineer Guy » Tue Aug 16, 2011 5:07 am

Panel/Surface mount Connectors are out there, but not stocked at the usual Big Box Stores. I've used Hubbell brand. They likely would have to be ordered through a Company that supplies Electrical Contractors.

What you're looking for is unique enough that it would have to be fabricated, of course.

See Page 30 [A-30] in the Hubbell Catalog linked here for 15 Amp Surface Mounts. 20 and 30 Amp Connectors are shown a few pages later.

Of course, great care would have to be taken in wiring any Male Connector to ensure that it never could be 'hot' with power.

Since you're supplying power daisy-chained to others, a GFI at the beginning of the 'chain' would be smart. Alternately, GFI your own Power Strip and pass 'non-GFI'ed' power back out transparently for others to use, and to GFI on their own. It is not recommended to connect multiple GFIs in series. They can false trip in such scenarios.

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Postby dh » Tue Aug 16, 2011 12:10 pm

IMHO Hubble puts out some of the best built, easiest to wire products out there.
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Postby Tumbleweed_Tex » Tue Aug 16, 2011 2:16 pm

Josh…be careful if you find what you’re looking for…

When an adapter is used on a 30 amp connection which allows the use of “normalâ€
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Postby rebapuck » Tue Aug 16, 2011 4:14 pm

The power strip I use is suppose to trip at 15amps. I only daisy chain to myself. The ttt also uses a 15amp power strip. Am I still in danger?

I will have to think on this somemore. I want to get a plan before I start putting a new interior in the camper, which includes new walls.
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Chain Links

Postby Engineer Guy » Tue Aug 16, 2011 6:59 pm

No danger. Integral to my answer was the assumption that your Power Strip had a 15 Amp Circuit Breaker built in. It's mighty rare anymore that one wouldn't. It's typically a push button on one end of the Strip.

This, along with the details you mention above, would prevent >15 Amps from being drawn dangerously. Think in terms of links-of-a-Chain, however. If there's a 20 or 30 Amp Connector at one point in the Chain - at the 'input' to your Trailer - any output from your Trailer to other connected items or Trailers would also have to be 30 Amp compatible. This is also true of the Wire size throughout the Chain. To downsize Wire size 'mid-Chain' WHILE having any chance of drawing 'excess' amperage is potentially dangerous, and should be avoided.
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Postby Tumbleweed_Tex » Wed Aug 17, 2011 7:49 am

Ok…now I’m really confused…

Suppose I take a cheap 100 foot extension cord (14/3 with ground), and using an adapter, plug it into the 30 amp connection at my camping spot. I run the cord here and there, then finally up into my TTT, and plug in a power strip with a built-in 15 amp breaker. I plug my little box fan into the power strip, turn it on, and fall asleep (it’s been a long day)

During the night, due to the route I took for the 100 foot cord (in the darkness, I accidentally laid it across a driveway), 30 big pickups run over it, the last of which finally crushes the internal insulation, allowing the 14 gauge wires to fizz as they begin to touch together.

As the outer insulation of the cord begins to melt, let's go back to what Judy said… [b]“I currently use an extention cord, from the shore power, through an openingâ€
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