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Old 09-01-2016, 07:14 AM   #1
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15 Amp to 50 Amp Extension Cord - What gauge?

I have a Honda 2000i generator that has a 15 amp plug. Will use a 15 amp to 50 amp dog bone to connect my 2016 AS Classic with its 50 amp plug. Want to purchase an extension cord to get some distance separation between the AS and the running generator.

Regarding the extension cord, what gauge wire should I get? Thank you.
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Old 09-01-2016, 08:08 AM   #2
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If 50' or so 12 gauge. If it will be 100' use 10 gauge. Voltage drop is what you are trying to prevent. Even though it's only 15 amp max load.
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Old 09-01-2016, 10:04 AM   #3
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You may do this either of two ways:
Buy a 50 Amp extension cord intended for RVs. ($150 and UP...)
<or>
Buy a 12 ga. 110 volt extension at any hardware store or Amazon. ($35)
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Old 09-01-2016, 10:23 AM   #4
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... and of course there's a 3rd way.

You can get a 30A RV extension cord cheaper than the 50A, and it would let you run one AC if you needed that much cord to reach a 30A or 50A receptacle at some point. 95% of the time the heavy-gauge 15A cord will be plenty, but sometimes you can find a decent deal on a 30A cord. I mostly use my 30A extention for hooking up to the generator in the bed of the pickup.
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Old 09-01-2016, 12:55 PM   #5
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I may be confused, but isn't the 50 Amp a 220 Volt service? And the 15 Amp is 115 Volt.. Now I am sure a adaptor could be made to power half the trailer circuits. Please correct me if I am wrong.
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Old 09-01-2016, 01:00 PM   #6
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Quote:
Originally Posted by ChuckFeldt View Post
I may be confused, but isn't the 50 Amp a 220 Volt service? And the 15 Amp is 115 Volt.. Now I am sure a adaptor could be made to power half the trailer circuits. Please correct me if I am wrong.
You are.
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Old 09-01-2016, 01:28 PM   #7
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we use a 30 amp to 15 amp marine adapter. It can be used right at the trailer for a short 12 gauge extension or on the generator using the long 30 amp cord for a lesser voltage drop. The larger cord allows for the single or twin operation of the Honda 2000.
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Old 09-01-2016, 01:59 PM   #8
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15 Amp to 50 Amp Extension Cord - What gauge?

A lot of people address this question as if the owner is going to push a 30 or 50 amp load with his single Honda or even a pair.

That ain't going to happen. A 10 gauge 30 amp RV cord is plenty (more than enough, (even a 12 ga cord will do for reasonable length runs)), and the gauge of the 30 to 50 dog bone is going to be meaningless because these are factory made and very short.


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Old 09-01-2016, 02:07 PM   #9
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An advantage of the less-expensive method I posted above (110V 12 ga ext. cord) is that for those times you don't need 50' of distance from the power-source,... you have a 110v extension cord to plug into your outside/curbside outlet to power lighting, fans, tools, or other appliances when in a campsite.
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Old 09-01-2016, 04:02 PM   #10
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A few thoughts...

- The Honda is quiet. Your 50 amp service cord is probably 25 or 30 feet. Why put the generator farther away? If you move it 50 or 100 feet away from your trailer it gives the thief an additional 50 or 100 foot head start. It also means a longer walk to start it, shut it down, check fuel, etc.. We typically run one Honda 2000 chained to the A frame and can't hear it in the back of the trailer if the windows are closed. If I run both of mine it's because we need AC and we can't hear them because the AC blower inside is louder than two 2000s right outside.

- A single Honda 2000 is not going to run your AC.

- 50 amp RV service is not 220 v. It is effectively two 110 v circuits. The appliances in a 50 amp served trailer are still 110 v, just like in a 30 amp served trailer
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