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Old 01-24-2013, 04:18 PM   #1
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15 to 50 Amp Extension?

I boondock quite a bit and often power my 5er off a Honda 2kw gen.

I am thinking of making a power cord with a 15 amp male plug on one end and a 50 amp female, to plug into the 5er on the other.

The reason is so I don't have to wrestle with the 50 amp cord when all I want to do I'd plug into the generator which is sitting right next to the rig.

Has anyone made something like this? What do you all think?

Thanks,
Jim
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Old 01-24-2013, 04:25 PM   #2
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Jim,

I've used 15a male to 30a female on boats, but I've never seen a 15 --> 50 amp commecially made. I would think it would be OK to run lights, but not your A/C.
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Old 01-26-2013, 10:06 AM   #3
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STOP NOW !!! IF your generator is like most generators: The 50 receptacle is 220vAC. The 30amp receptacle (if there is one) will be 110 +/-vAC. I made a big mistake with my generator once. Mine came with a factory supplied 50 ft. extension cord and was clearly marked on the male end "110vAC". The female end was as a normal 110vAC receptacle would be. I changed to female end to the 30 RV female connector to use with my TT. Big bad mistake. The power cord was mis-labled, I was getting a full 220vAC to my TT, I fried my micorwave, and the converter. I had done the worst thing possible: ASSumed that the power cord was wired as marked. It is properly wired and marked now. So please check your 50 amp receptacle on your generator, your power cord, and make sure you are only getting the 110vAC for your 30 amp connection.
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Old 01-26-2013, 10:59 AM   #4
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I had a generator guro switch my 120/240 volt receptacle to a standard rv 30 amper.



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Old 01-26-2013, 11:05 AM   #5
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Then we built this do dad.
One extension cord 15 amps per side.
Comes in pretty handy.

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Old 01-26-2013, 04:38 PM   #6
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Quote:
Originally Posted by Capt. Mike View Post
Jim,

I've used 15a male to 30a female on boats, but I've never seen a 15 --> 50 amp commecially made. I would think it would be OK to run lights, but not your A/C.
Thanks Mike, that's exactly what I have in mind. Haven't seen one commercially either, wondering why not...... Also understand about AC, my genset won' t power AC anyway.

Thanks to others for input. My genset has only 110V out so no worries there.
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Old 01-26-2013, 05:07 PM   #7
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When and if you do this you'll have to see which side of the 50 amp plug that the a/c is on.
Normally the a/c is on one leg and the control center is on the other.

Food for thought.

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Old 01-26-2013, 06:15 PM   #8
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This is what you need - have this on our 5er when at home... Just remember to not turn on both AC's, fridge, etc... This is setup to bring both sides of the panel into a single circuit so you are limited to the standard 15ish amps that your plugged into.




Amazon.com: Conntek 14422 RV Pigtail Adapter 15 Amp Male Plug With Screw To 50 Amp 125/250 Volt Locking Female Connector: Patio, Lawn & Garden
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Old 01-26-2013, 06:50 PM   #9
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I don't see a problem with it. You'll have to jumper the 2 hot wires in the 50 Amp receptacle and you'll be limited to what your genny can supply but you'll figure that out quick. Depending on the length you need I'd use 10 ga. cord. 12 ga. will work but cord never carries power as efficiently as regular THHN wire so I usually go up one size.
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Old 01-26-2013, 06:52 PM   #10
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I actually have to dogbone converters. I go from 50amp to 30amp to 15/20amp. It is nice because it was cheaper than what I found the 50 to 15 that I found at a store AND gives me the flexibility of camping at a 30amp site (which I've done a couple of times).
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