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Old 07-29-2015, 09:05 PM   #1
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Portable Generator Hookup

What is the best way (not necessarily the easiest way) to connect a 2000 watt portable generator to a 50 amp 5th Wheel? Obviously you can plug the 50A cord into a 30A dogbone adapter, and if necessary, plug that into a 15A adapter and then into the generator. The only downside is having to use that long, heavy 50A cord just to get partial power into the house. For the folks out there that have been there, done that, how exactly do you make the connection? Alternately, I understand you can have a marine grade receptacle and a transfer switch installed, but Iím not really sure how that works. Thanks in advance for your help.
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Old 07-29-2015, 09:20 PM   #2
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Nope-- unless the 50 amp cord is detachable, you need to use it with the proper adaptors [dogbones] to plug into the genny. You should note that a 2000 watt genny will not provide much power -- lights, TVs, etc, but not a std roof AC unit.
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Old 07-29-2015, 09:30 PM   #3
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I saw a neat shorter 50 amp connector that I believe connects to the 5th wheel with a 15amp connector on the other end. This adaptor looked to be just two feet long.
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Old 07-29-2015, 09:31 PM   #4
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Ugh...forgot to mention it was just a few days ago I saw it on this forum.
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Old 07-30-2015, 01:33 AM   #5
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You can get a 50 amp rv twistlock to nema 15 adapter from which you can run a short extension cord to the generator, but I just do the 50 amp cable to a 50-30 dogbone, then a shory 30-15 adpator to get from 50 amp to 15 amp to the Genny.. This lets me locate the generator 25' away from the rv which is better for noise anyhow, even with the honda 2000eu. There's no loss in that 50 amp cord.
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Old 08-03-2015, 12:36 PM   #6
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I use a 50 to 30 amp adaptor connected to a 30 amp cord to the generator. I put a 30 to 15 amp adaptor inline to connect the 30 amp cord to the generator. Keep in mind, this is to keep the battery charged, run the fridge and a TV. I have a 2400 watt Yamaha generator and it does that just fine. It will run the AC only if the fan is left on and just the AC unit is allowed to turn on and off. I don't do that very often though but I had to test it out to see if it would work.Click image for larger version

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Old 08-03-2015, 01:58 PM   #7
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If you want to get away from the long 50 amp cord...
There is an "adapter" (Shore cord actually) you can get at Camping world or some other RV places. two models

Both have 50 amp MARINCO outlets (Matching the inlet on the motor home) but one has a 30 and the other a 50 amp RV style plug

You can then either adapt down there or you can use a 30 amp cord and adapt down at the generator end.

If you adapt at the RV end I would suggest a PUCK type adapter over a dog bone (you can get both in the 50-15 size) for ease of use and a 12GA cord from Sears or K-mart with the push button outlet so you push the button before plugging the puck into it.

If you use the 30 amp short cord and a 30 amp extension (Get super flex easier to wrangle) you can use a Generator Power Maximizer device to connect to the duplex outlet on the genny.

30A Power Cord RV Adapter -

Generator end 30amp to duplex adapter

Note it is possible the duplex adapter might not work on some generators.
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Old 08-05-2015, 09:54 PM   #8
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The Honda 2000 comes with a 30 amp plug. I bought a 30 amp cord and already had the 30/50 amp adapter. It works great and is easier to handle than the 50 amp cord. Yes it does mean me carrying a 50 and 30 amp cord but on my trip to AK, I used both of them and a regular extension cord as power varied from 50 amp to 15 amp to running off the generator.
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Old 08-05-2015, 10:00 PM   #9
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I use this adapter to go down from 50 to 20/15.

GE 50-Amp to 20-Amp Adapter Plug-AD5020 - The Home Depot
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Old 08-06-2015, 07:56 AM   #10
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Quote:
Originally Posted by khamis View Post
The Honda 2000 comes with a 30 amp plug. .
Honda EU-2000i Companion comes with 30 amp outlet (not plug OUTLET)

Honda EU-2000i Does not,

Honda Eu-2000i parallel kits the cheap one for use with one compnion and one take your pick does not

The expensive one for use with two non-companions does.
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Old 08-06-2015, 01:02 PM   #11
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I have seen several fifth wheel trailers that are made ready for a genset in the compartment just behind the tailgate. Would it be possible to rig up a connection in that compartment so you could keep the generator in the truck bed, and use a short cord instead of using the heavy cord clear to the rear of the trailer?
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Old 08-12-2015, 10:33 PM   #12
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Thanks for the info, guys. Our 5th wheel is on the assembly line as we speak. I'm having a 50A marine grade receptacle installed in the forward compartment (where a genset would normally be). I just bought a Honda 2000i Companion and an adapter with a 30A twist-lock that plugs directly into the generator on one end and a 50A female on the other. I can use the standard 50A cord that comes with the RV or buy a short one to use just with the portable generator. If I run a second generator in parallel I just might have enough power to run one of the air conditioners. In any case, I'll have the bare essentials covered when out in the boonies.
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Old 08-14-2015, 12:52 PM   #13
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I installed a 50amp outlet in the front compartment and made a short cord with 50amp plug on one end and 30amp on the other end to match my 3000watt generator. I store the gen in the front compartment when not in use and when I need it I just set it out on the ground or in the bed of the truck and just plug in the short cord. Works like a champ, you just have to remember to unhook the main shore power cord on the back of the trailer first.
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