Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 07-25-2011, 07:00 AM   #1
Rkh
Registered User
 
Rkh's Avatar
 
Ford Super Duty Owner
Join Date: Jul 2011
Posts: 1,063
30 amp rv and a 50 amp post...

1998 Winnebago Chieftain, dual AC units...
My coach obviously has 30 amp system as indicated by the 3 prong 30 amp power cord.
Is it safe to use a 30 to 50 amp adapter and safely plug into a 50 amp campsite post? I realize the coach won't utilize 50 amps, just wondering if it will regulate itself and not smoke.
__________________

__________________
Rkh is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 07-25-2011, 07:09 AM   #2
Registered User


 
Monaco Owners Club
Join Date: May 2009
Posts: 3,198
yes, it's perfectly safe.
__________________

__________________
JimM68 is offline   Reply With Quote
Old 07-25-2011, 07:13 AM   #3
Senior Member
 
Wizard's Avatar


 
Winnebago Owners Club
Freightliner Owners Club
Join Date: Mar 2007
Location: Home on the hill in Georgia
Posts: 2,457
The breakers in your motorhome panel are rated at 30 amps, and won't let the unit use more than 30 amps. The cord itself would not be protected, but should not be a problem as long as the cord is fully outside your rig. Don't leave any cord coiled up inside.
__________________
Jerry & Patsy Potter, Taz & Jake Jr.
2000 Winnebago Journey
2006 Ford Explorer 4X4
Wizard is offline   Reply With Quote
Old 07-25-2011, 07:18 AM   #4
AL
Senior Member
 
AL's Avatar
 
Florida Cooters Club
Nor'easters Club
Solo Rvers Club
Appalachian Campers
Mid Atlantic Campers
Join Date: Mar 2000
Location: Silver Springs, FL
Posts: 2,491
Thumbs up Works Fine

Hi All,

Hey RKH,

I have had my 30 amp pluged in to 50 amp post with the 30 to 50 adapter many times with no problems at all! Also for the past two winters I have it hooked up that way for more then 6 months straight so I think that saye it's ok,LOL!!!

Also

Remember All: LIVE, LAUGH & ENJOY !!!!
__________________
AL, & Mickey "The Boston"! Silver Springs, FL Camping since 1967 and RVing since 1990! A 2011 Keystone Hornet 30RKDS & 2015 Yamaha V-Star 1300 Delux WATCH FOR MOTORCYCLE
AL is offline   Reply With Quote
Old 07-25-2011, 07:22 AM   #5
Rkh
Registered User
 
Rkh's Avatar
 
Ford Super Duty Owner
Join Date: Jul 2011
Posts: 1,063
Good to hear...Would I buy a 30 amp surge protector wen plugged into a 50 amp post. Meaning, my SP would be plugged into the end of my coach cable, then into the 30 to 50 amp adapter, then adapter into the post?
__________________
Rkh is offline   Reply With Quote
Old 07-25-2011, 07:32 AM   #6
Senior Member
 
MickBrennan's Avatar
 
Join Date: Apr 2010
Location: Playa del Carmen, Q.R., Mexico
Posts: 590
That is what the adapter is made to do. Now if you are plugging a 50 amp coach into a 30 amp pedestal, that is a different story.
__________________
Story here
MickBrennan is offline   Reply With Quote
Old 07-25-2011, 08:33 AM   #7
Rkh
Registered User
 
Rkh's Avatar
 
Ford Super Duty Owner
Join Date: Jul 2011
Posts: 1,063
Can anyone explain why it's safe? Why doesn't the 30 amp coach at least trip a breaker when plugged into 50 amp service?
__________________
Rkh is offline   Reply With Quote
Old 07-25-2011, 08:59 AM   #8
Senior Member
 
Join Date: Nov 2010
Location: hanson ma
Posts: 206
why would you think it should trip a breaker the breaker only knows how much current you are trying to draw. when you use the adaptor you are realy only using 1/2 the power supplyed at the outlet. the 50 amp outlet is realy 110/220 with 2 hot legs the adaptor only connects to 1 hot leg giving you 110v your coach is set up for lee
__________________
hometool is offline   Reply With Quote
Old 07-25-2011, 09:46 AM   #9
Senior Member
 
MegaRoadie's Avatar
 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: Feb 2011
Location: Spring Hill, Florida
Posts: 343
Send a message via Yahoo to MegaRoadie
Electricity is a wonderous tool that enabled the USA to prosper into the World Leader it is today... sadly, the education system has totally ignored even teaching our society the very basics of power usage.

Trust me... if the adapters were unsafe in any way the Tort System would be loaded with grimy slimy lawyers hawking their services to enrich the injured.

Your 30 amp unit ONLY uses the current that YOU "draw" from the system, and it has current limiting devices, (fuses, breakers, etc...) that will shutdown the electric flow if you turn on too many devices and far exceed that 30 amps. The system, cables, plugs and panels are fully capable of handling that 30 amps and are under rated in the labelling purposefully to preclude damages and lawsuits.

Common sense goes a long way with loading and the maker of your RV anticipated a lot of what you would NORMALLY be doing with it. The trouble starts when all the add-ons get thrown into the mix... look around at other's units. They have added electric grills to use campground power rather than their own propane, electric heaters, again to avoid using their own propane. Lights and outside accessories that will boggle the mind of the older RV designers. Added on slide out freezers to storage spaces, super sized and powerful microwave ovens, toaster ovens, crock pots etc... DO YOU SEE THE PICTURE HERE ??? I have even watched folks plug in ceramic or hot rod heaters to heat their feet while they sit outside in the cold, "Oh dont worry... the campground got paid for all the electricity in their huge bill" a common comment.

No magic here...common sense and courtesy should keep you safe and use those adapters wisely !
__________________
05 Itasca Suncruiser, Stock w/ScanGuage II,
2012 Honda Accord TOAD,Home Based in Spring Hill, Florida...Retired Navy Officer
MegaRoadie is offline   Reply With Quote
Old 07-25-2011, 06:10 PM   #10
Senior Member
 
MickBrennan's Avatar
 
Join Date: Apr 2010
Location: Playa del Carmen, Q.R., Mexico
Posts: 590
Quote:
Originally Posted by Rkh View Post
Can anyone explain why it's safe? Why doesn't the 30 amp coach at least trip a breaker when plugged into 50 amp service?
Oversimplifying...

The adapter only uses half of the 50 amp receptacle. 30<50
__________________
Story here
MickBrennan is offline   Reply With Quote
Old 07-25-2011, 06:55 PM   #11
doc
Senior Member
 
doc's Avatar
 
Appalachian Campers
Join Date: Sep 2002
Location: Dixie !! (north Georgia) USA
Posts: 2,953
"The adapter only uses half of the 50 amp receptacle."


exactly~
__________________
doc is offline   Reply With Quote
Old 07-25-2011, 07:33 PM   #12
Senior Member
 
wa8yxm's Avatar
 
Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 22,787
Lots of interesting mis-information above, and one bit of truth

It is safe (The true part)

The 30 amp adapter only uses half the 50 amp outelt (Also true) but then the author goes on to confuse.

Now why it's safe...

Normal 50 amp power to a motor home

L-1---Breaker 50---------- Breaker-50 branch breakers in coach---Stuff
Neutral-----------------------------------------------------
L-2---Breaker 50-----------Breaker 50 branch breakers in coach.---Stuff

Stuff is air conditioners, water heaters, converters, Refrigerators, Televisions and all teh other 120 volt "Stuff You have in your rig)

Normal 30 amp service

L-whatever---Breaker 30----------- Breaker 30-branch breakers - stuff
Neutral--------------------------------------------------------------

In this both ends of the main power cord have 30 amp breakers, the first one refers to the breaker on the pedistal, the second to the main in your coach (NOTE this applies to the 50's above too.

Now here is a 30 amp rig plugged into a 50 amp outlet

L-1 or 2---- Breaker 50 -------- Breaker 30--branch breakers---Stuff
Neutral-------------------------------------------------------------
L-2 or 1------Breaker 50--Not connected

As you can see the 30 amp main breaker in the coach protects against everything save a short in the main power cord.. And if that cord shorts, it will trip the 50 before anything bad happens.
__________________
Home is where I park it!
wa8yxm is offline   Reply With Quote
Old 07-25-2011, 09:48 PM   #13
Rkh
Registered User
 
Rkh's Avatar
 
Ford Super Duty Owner
Join Date: Jul 2011
Posts: 1,063
Quote:
Originally Posted by wa8yxm
Lots of interesting mis-information above, and one bit of truth

It is safe (The true part)

The 30 amp adapter only uses half the 50 amp outelt (Also true) but then the author goes on to confuse.

Now why it's safe...

Normal 50 amp power to a motor home

L-1---Breaker 50---------- Breaker-50 branch breakers in coach---Stuff
Neutral-----------------------------------------------------
L-2---Breaker 50-----------Breaker 50 branch breakers in coach.---Stuff

Stuff is air conditioners, water heaters, converters, Refrigerators, Televisions and all teh other 120 volt "Stuff You have in your rig)

Normal 30 amp service

L-whatever---Breaker 30----------- Breaker 30-branch breakers - stuff
Neutral--------------------------------------------------------------

In this both ends of the main power cord have 30 amp breakers, the first one refers to the breaker on the pedistal, the second to the main in your coach (NOTE this applies to the 50's above too.

Now here is a 30 amp rig plugged into a 50 amp outlet

L-1 or 2---- Breaker 50 -------- Breaker 30--branch breakers---Stuff
Neutral-------------------------------------------------------------
L-2 or 1------Breaker 50--Not connected

As you can see the 30 amp main breaker in the coach protects against everything save a short in the main power cord.. And if that cord shorts, it will trip the 50 before anything bad happens.
Thanks Wa8! Good info...I"ve purchased a 30amp in line TRC unit...!
__________________
Rkh is offline   Reply With Quote
Old 07-26-2011, 01:56 PM   #14
Junior Member
 
rsaint's Avatar
 
Join Date: May 2011
Location: Gretna Nebraska
Posts: 15
I would always say buy a 50 amp surg protector. If you have a 30amp RV now and enjoy it! You will someday need a 50amp as you move up in coach size. Learned it the hardway..... When you get a coach with 50 amp your 30 amp is no good. You can use your 50amp surge with a 30 amp coach with the simple adapter...
__________________

__________________
Robert and Debra
1998 Dutch Star '38 DP
150 cc scooter Riley, Springer and Rio, Chihuahua
rsaint is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:38 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.