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Old 11-09-2018, 09:02 PM   #1
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50 amp or 30 amp

I just made reservations for a few long weekends at Virginia Highland Airstream Park. Looks like a wonderful place and we can't wait. They are 30 amp service and my 30' Classic is 50 amp. I have a 50 amp EMS surge protector and was wondering if it would be best to just put a 50 amp to 30 amp converter on my surge protector or should I get a 30 amp power cord?
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Old 11-09-2018, 09:10 PM   #2
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I would think a 30 to 50 dogbone to your surge protector to your AS is the way I'd do it. I have a 50 amp coming and that is what I plan to do when I run across it.......anyone disagree? If so, please comment, I'll be in the same position and want to ensure we are both doing it right..

Thanks!
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Old 11-09-2018, 09:13 PM   #3
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I broke down and bought both 30A and 50A surge protectors and a 30A cord so that I don't have to drag out the heavy 50A cord when I have a 30A site.

That said, the 50A surge protector should work with a 30A to 50A adapter plugged in to the 30A receptacle.

One caution is that my surge protectors claim they need to be hung by the plug, not laying on the ground when in use according to the instructions.
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Old 11-09-2018, 10:03 PM   #4
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Quote:
Originally Posted by 66Overlander View Post
I broke down and bought both 30A and 50A surge protectors and a 30A cord so that I don't have to drag out the heavy 50A cord when I have a 30A site.
This is ideal.
A 30 amp power cord with a 50 amp trailer connection is relatively inexpensive. Also, you might not need the top of the line 30 amp surge since you will only use it occasionally.
Remember, you can run the 30 amp power cord to the generator also, so it's handy to have.
Like this:
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Old 11-10-2018, 07:35 AM   #5
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Just use the 50amp to 30amp dogbone.
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Old 11-10-2018, 08:33 AM   #6
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Originally Posted by billrector View Post
Just use the 50amp to 30amp dogbone.

This is one I also carry, and use quite often in SE campgrounds:
https://www.campingworld.com/two-30-...-y-adapter-27l


Let's me run both airconditioners on a 30 amp pedestal with two outlets.


Works in Georgia State Parks, Top of Georgia Airstream Park, and others. Perhaps where you're going too!
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Old 11-10-2018, 08:59 AM   #7
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How about this adapter, and keep your 50 amp surge hanging on the post!
https://www.rvupgradestore.com/50-to...089.1541824254
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Old 11-10-2018, 09:30 AM   #8
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Originally Posted by Baby Zeppelin View Post
This is one I also carry, and use quite often in SE campgrounds:
https://www.campingworld.com/two-30-...-y-adapter-27l


Let's me run both airconditioners on a 30 amp pedestal with two outlets.


Works in Georgia State Parks, Top of Georgia Airstream Park, and others. Perhaps where you're going too!


Now that is interesting!
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Old 11-10-2018, 09:35 AM   #9
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Quote:
Originally Posted by Baby Zeppelin View Post
This is one I also carry, and use quite often in SE campgrounds:
https://www.campingworld.com/two-30-...-y-adapter-27l

Let's me run both airconditioners on a 30 amp pedestal with two outlets
Fantastic price at $16.72.

Quote:
Originally Posted by Mollysdad View Post
How about this adapter, and keep your 50 amp surge hanging on the post!
https://www.rvupgradestore.com/50-to...089.1541824254
Simple, compact, and Progressive Industries quality for $23.78.



Both good options, albeit different approaches. They are so reasonably priced, get both?


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Old 11-10-2018, 11:47 AM   #10
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I have two power cords a traditional 50 amp, and a 30 amp with a 50 amp head. I don't drag out the 50 amp cord unless I need to run both air conditioners. I bought the 30 amp cord on Amazon. It is a Marinco Park Power. I have found Marinco's to be more flexible in cold weather. I also have both 30 & 50 amp surge protectors. I figure the fewer adapters used the better.
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Old 11-10-2018, 11:55 AM   #11
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Hi

Yes, you can run two AC's on a 30A circuit. You *will* be pulling more than 30A, but not all breakers trip at exactly 30A. Some don't trip until you are *way* past 30A. It depends a bit on how long you try to pull this or that amount of current. It also depends on just what sort of shape the breaker is in. Manufacturing tolerances on a low bid breaker might also get into the mix ....

The gotcha (obviously) is that the connector and adapter are only rated for 30A max. In reality they are designed for 80% of 30A on a normal basis. Since you can get surges well past 50A running two AC's with a 30A adapter, eventually you will melt things.

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Old 11-10-2018, 12:02 PM   #12
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Surge protector

Had 50 amp surge protector left over from my 5th wheel days. Have continued to use it with my 30 AMP 25 Flying cloud. No issues. Had to get a 30 to 50 amp converter plug so I could connect the power cord to the converter. I usually plug into 50 amp to eliminate one plug converter.
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Old 11-10-2018, 12:42 PM   #13
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Quote:
Originally Posted by Mollysdad View Post
How about this adapter, and keep your 50 amp surge hanging on the post!
https://www.rvupgradestore.com/50-to...089.1541824254
That's what I have. I purchased it when I bought my 50 amp EMS surge protector.
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Old 11-10-2018, 12:48 PM   #14
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Quote:
Originally Posted by greenflag View Post
I have two power cords a traditional 50 amp, and a 30 amp with a 50 amp head. I don't drag out the 50 amp cord unless I need to run both air conditioners. I bought the 30 amp cord on Amazon. It is a Marinco Park Power. I have found Marinco's to be more flexible in cold weather. I also have both 30 & 50 amp surge protectors. I figure the fewer adapters used the better.
I like this idea but I sure hate to have to buy another EMS surge protector. I guess I could get a conventional 30 amp surge protector for a lot less money but somehow that seems like a bad idea.
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