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Author Topic: 50 to 30 to 110  (Read 1756 times)

Offline TexanThompsons

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50 to 30 to 110
« on: December 16, 2015, 10:15:32 AM »
In need of some technical guidance.  My rig  is out of commission with some water damage due to some busted pipes under the tub so we are having to take a different rig that is a 50 amp rig and we only have a 110 plug at the deer lease. I have a trickle charger we can use to keep the battery charged, but I would like to have a way to use the plugs in the rig and I'm not about to take a 50 am plug with an adapter to 30 amp and then use a 110 adapter to plug the rig into the outlet. Any thoughts are welcome.


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Offline swanny

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Re: 50 to 30 to 110
« Reply #1 on: December 16, 2015, 11:58:06 AM »
I do it when we're home with no issues. That said I don't run the ac.

Kevin

Ps I also have a surge protector
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Offline Dockside

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Re: 50 to 30 to 110
« Reply #2 on: December 16, 2015, 12:34:12 PM »
Wondering what the reservation is about using the adapters?  Been using this setup (with the addition of 30A SurgeGuard 34830) into a 50 foot 12/3 extension cord plugged into an outdoor, dedicated 20A plug (GFCI breaker).  Average draw is less than 4A and normally reads 0A.  It is plugged in all camping season long when home to keep the battery maintained.  When packing/unloading for a trip, plugs are used inside the fiver along with both refrigerators to bring them down to temp.  It would be possible to remove the 30A step down and go from 50A to 15A with a Camco 55168 dog bone adapter.  However, there is sense (maybe a false one) of security having the SurgeGuard on there.

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Offline huntr70

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Re: 50 to 30 to 110
« Reply #3 on: December 16, 2015, 03:54:23 PM »
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Offline egregg57

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Re: 50 to 30 to 110
« Reply #4 on: December 16, 2015, 04:24:57 PM »
Use a heavy gauge extension cord. Not a thin cheap one. Manage your loads to reduce current draw. Checking the cords at the adapters for heat is a good idea. Of course, if they are hot, your drawing a lot of current.

 Up until a year ago or so, until I put my 50 amp outlet in, my fifth wheel was plugged into 120 VAC on a 15 amp breaker. I ran lights when I needed them, heat too. I did not run the AC, not the microwave. The Electric element in the water heater also draws a lot of current so don't use that. If you stick to lights, furnace, refer on gas, I don't see that you are going to have any issues.

Eric 
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Offline Willingtonpaul

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Re: 50 to 30 to 110
« Reply #5 on: December 16, 2015, 11:24:47 PM »
what everyone else said....i did it all the time before i put a 50 amp outlet in....

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Offline TexanThompsons

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Re: 50 to 30 to 110
« Reply #6 on: December 17, 2015, 09:17:08 AM »
the knowledge on this site never ceases to amaze me.  I will give it a shot and watch the draw.  Thanks for the feedback everyone and I'll let you know if we catch something on fire (other than the wood we're bringing!
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Offline thefulminator

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Re: 50 to 30 to 110
« Reply #7 on: December 17, 2015, 10:08:16 AM »
The question is why does your rig have a 50 amp connection.  What draws that much current?  Do you have two air conditioners or a washer/dryer?  Do you need to use those when hooked up to the 15 amp service?  I connect my 30 amp plug to a 15 amp service all the time but never turn on the A/C and have no problems.  Just don't turn on the breakers for those high amperage devices.

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Offline TexanThompsons

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Re: 50 to 30 to 110
« Reply #8 on: December 17, 2015, 10:47:20 AM »
The question is why does your rig have a 50 amp connection.  What draws that much current?  Do you have two air conditioners or a washer/dryer?  Do you need to use those when hooked up to the 15 amp service?  I connect my 30 amp plug to a 15 amp service all the time but never turn on the A/C and have no problems.  Just don't turn on the breakers for those high amperage devices.

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I don't need the full amp the trailer is capable of.  Just running fridge, some heat, and a couple of plugs.  My biggest concern was basically creating a 3-level daisy chain from a 50 amp cord with a 30-amp adapter at the end with a final 3-prong 110 outlet adapter.  Anything electric just gives me a the heebie-jeebies since I know virtually nothing about it.  the fact that several on this forum have done it and do it often puts me a at greater ease.
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Offline Happy Camper

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Re: 50 to 30 to 110
« Reply #9 on: December 18, 2015, 05:21:28 PM »
I'm betting the vast majority of us campers with a 50 amp connector on our RV's use the exact scenario you describe to connect our RV's while in space-dock, or camping when only 110VAC 15/20 amp is available. If there is only 15 amp be very careful not to use any hi amperage appliances simultaneously; no combination of these device at the same time; refrigerator, air conditioner, electric water heater, old CRT TVs, clothes or hair dryer, microwave oven. Most RV's switch the fridge automatically to 110vac when that becomes available; If you are connected a low amperage outlet;< 20 amp, you should manually switch the fridge to run on propane; you can also do this with the water heater; switch it to use propane exclusively. This will provide more shore power available to use for other appliances. if you are on a 30 amp circuit do not use both air conditioners simultaneously. 
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