Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-04-2013, 02:06 PM   #1
1 Rivet Member
 
2013 22' FB Sport
Huntley , Illinois
Join Date: Mar 2013
Posts: 15
Question 30 vs 50 amp service

We just purchased our sport 22 2013 model. As we head off, we are reviewing campgrounds that offer either 30 or 50 amp service, some do not guarantee 30 on a 50 site. Can you use a 50 amp service with an adapter? Does the unit just pull the amperage needed? What are the guidelines? Our service person says No but other RV forums say it is no problem. What advice do you have for these newbies???

Thanks for your help.
__________________

__________________
chegard is offline   Reply With Quote
Old 06-04-2013, 02:09 PM   #2
Rivet Master
 
adonh's Avatar

 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
Quote:
Originally Posted by chegard View Post
We just purchased our sport 22 2013 model. As we head off, we are reviewing campgrounds that offer either 30 or 50 amp service, some do not guarantee 30 on a 50 site. Can you use a 50 amp service with an adapter? Does the unit just pull the amperage needed? What are the guidelines? Our service person says No but other RV forums say it is no problem. What advice do you have for these newbies???

Thanks for your help.
Here is the adapter you need

50 Amp Male to 30 Amp Female Dogbone Pigtail Adapter - $15.99
__________________

__________________
Don Hardman
1976 31' Sovereign
adonh is offline   Reply With Quote
Old 06-04-2013, 02:24 PM   #3
1 Rivet Member
 
2013 22' FB Sport
Huntley , Illinois
Join Date: Mar 2013
Posts: 15
I assume that means there are no electrical issues with hooking our unit up to the 50 with the adapter. Sorry to be such a newbie. Thanks
__________________
chegard is offline   Reply With Quote
Old 06-04-2013, 02:25 PM   #4
Moderator
 
HiHoAgRV's Avatar

 
1991 34' Excella
1963 26' Overlander
1961 26' Overlander
Central , Mississippi
Join Date: Nov 2006
Posts: 5,326
Images: 29
Blog Entries: 49
If there is a 50A and a 30A available, I always use the adaptor and plug into the 50A service. Many times, the 30A outlet has been pushed to it's limits and worn out, thus has a good chance of damaging my 30A cable. . The 50A is less used and has much bigger blades.
__________________
Hi Ho Silver RV! Vernon, Sarah, Mac the Border Collie -
A honkin' long 34' named AlumaTherapy http://www.airforums.com/forums/f205...num-54749.html
and a 26' '63 Overlander, Dolly http://www.airforums.com/forums/f109...ome-71609.html
HiHoAgRV is offline   Reply With Quote
Old 06-04-2013, 02:51 PM   #5
Rivet Master
 
Silver Otter's Avatar

 
2011 31' Classic
Nellysford , Virginia
Join Date: Mar 2011
Posts: 979
Images: 6
Blog Entries: 1
Agree with HiHo! There is no electrical issue. Will work fine. Does for us.
__________________
Greg and Linda Heuer
2011 31' Classic Ltd. - The Silver Otter III
2013 GMC Denali 2500HD 6.6 DuraMax
TAC VA-18 | WBAC 1927 - Shen. Valley Unit 149 | AIR 53869
https://www.linkedin.com/in/gheuer
Silver Otter is offline   Reply With Quote
Old 06-04-2013, 02:51 PM   #6
Rivet Master
 
adonh's Avatar

 
1976 31' Sovereign
Missouri City , Texas
Join Date: Mar 2007
Posts: 1,233
Images: 1
Blog Entries: 6
Quote:
Originally Posted by chegard View Post
I assume that means there are no electrical issues with hooking our unit up to the 50 with the adapter. Sorry to be such a newbie. Thanks
As I understand it, A 50 amp RV power source through a 50 amp RV power cord is designed to provide 2 lines of 110 volt power to a designated 50 amp RV.

According to the data on the link above,

"The 50M-30F adapter allows you to plug your 30 amp power cord into a 50 amp power source. It adds versatility to your electrical hookups. They are Heavy-duty 10/3 ST power cords with 3-wires plus ground".

The adapter provides only one line of 110 volts to the designated 30 amp RV. Maybe others will provide a more technical response, or correct me if I am wrong.
__________________
Don Hardman
1976 31' Sovereign
adonh is offline   Reply With Quote
Old 06-04-2013, 03:02 PM   #7
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
If you plug a 30 amp cord into a 50 amp outlet using an "adapter", you will only be using one side, or leg, of the 50 outlet.

If the two were tied together, you would definitely blow the 50 amp breaker on the pedestal.
__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Old 06-04-2013, 03:31 PM   #8
RLS
Rivet Master
 
RLS's Avatar

 
2004 25' Classic
Prescott , Arizona
Join Date: Jul 2008
Posts: 608
Quote:
Originally Posted by HiHoAgRV View Post
If there is a 50A and a 30A available, I always use the adaptor and plug into the 50A service. Many times, the 30A outlet has been pushed to it's limits and worn out, thus has a good chance of damaging my 30A cable. . The 50A is less used and has much bigger blades.
One winter I was using this setup and noticed when unplugging from the 50 amp that the 30 amp trailer plug was starting to melt (had a 1500 watt heater going most all the time). Instead of just replacing it with another 30 amp plug, I went ahead and put a 50 amp plug on just for the above mentioned bigger blades and wire connectors. I do have an adapter to go back to 30 amps if needed. No more heating up with this setup
__________________
Julia & Bob
W/ Deedee & Boo
AIR #30685
RLS is offline   Reply With Quote
Old 06-04-2013, 04:08 PM   #9
Rivet Master
 
Alumaholic's Avatar

 
1966 24' Tradewind
Albuquerque , New Mexico
Join Date: Nov 2005
Posts: 1,751
Images: 33
A 50 amp to 30 amp adapter should be in every Airstreamer's kit.
50 amp is still 120 volts AC (a hot wire, a neutral, and a ground).
As HiHoAgRV suggests, I routinely use the 50 amp receptacle with my 50 to 30 amp adapter when I have a choice. It has saved me more than once when the 30 amp breaker is weak from overuse. Hope this helps.
Other stuff to have in your Airstream:
- A 15 amp male to 30 amp female adapter.
- A 30 amp male to 15 amp female adapter.
- An extra 30 amp power supply cord.
- Electrician's tape
- A multimeter
- A receptacle tester
__________________
Ken L
1966 Tradewind 24
2007Chevy Silverado 2500 HD Duramax/Allison
Four Corners Unit WBCCI #8654
Alumaholic is offline   Reply With Quote
Old 06-04-2013, 04:58 PM   #10
Rivet Master
 
TBRich's Avatar

 
2006 19' Safari SE
Tucson , Arizona
Join Date: Jun 2007
Posts: 4,483
Images: 64
We have a 50-to-30 amp adapter but have never had to use it. However, this makes sense, so now I think I will begin using the 50-amp with the step-down adapter when available. Thanks!
__________________
TB & Greg and Abbey Schnauzer
AirForums #21900 . Membership Chair, 4C
Unit #3954
Travel Log: AZBambi...On the Road Again
TBRich is offline   Reply With Quote
Old 06-04-2013, 05:05 PM   #11
Site Team
 
, Minnesota
Join Date: Aug 2003
Posts: 6,940
Images: 59
Quote:
Originally Posted by adonh View Post
"The 50M-30F adapter allows you to plug your 30 amp power cord into a 50 amp power source. It adds versatility to your electrical hookups. They are Heavy-duty 10/3 ST power cords with 3-wires plus ground".
I doubt this description is right. The cord itself should be 3-wires, one of which is the ground.

Which begs the question posed by the original poster. If you plug a 10 gauge cord, rated for 30 amps, into a receptacle rated 50 amps, you are exceeding the rating of the cord.

This will normally be OK, because if the amps exceed the 30 amp rating the 30 amp main breaker in the trailer should trip.

However, the cable itself is not protected. If there is a high resistance short or loose connection within the plug, dogbone adapter, or cable itself it could overheat.

Risk is low, but you you inspect the cord and adapter each time you use it and discard if it shows any sign of overheating.
__________________
markdoane is offline   Reply With Quote
Old 06-04-2013, 06:31 PM   #12
2 Rivet Member
 
scooterbug76's Avatar
 
1969 27' Overlander
Northeast , Georgia
Join Date: Jan 2013
Posts: 69
I learned something new on this thread today.
__________________
scooterbug76 is offline   Reply With Quote
Old 06-04-2013, 06:36 PM   #13
Moderator
 
HiHoAgRV's Avatar

 
1991 34' Excella
1963 26' Overlander
1961 26' Overlander
Central , Mississippi
Join Date: Nov 2006
Posts: 5,326
Images: 29
Blog Entries: 49
Quote:
Originally Posted by SteveH View Post
... you will only be using one side, or leg, of the 50 outlet...
Exactly! On a 50A - 30A adaptor, the 50A plug has 4 copper terminals, one of them is a dummy and not hooked to anything.
__________________
Hi Ho Silver RV! Vernon, Sarah, Mac the Border Collie -
A honkin' long 34' named AlumaTherapy http://www.airforums.com/forums/f205...num-54749.html
and a 26' '63 Overlander, Dolly http://www.airforums.com/forums/f109...ome-71609.html
HiHoAgRV is offline   Reply With Quote
Old 06-04-2013, 09:18 PM   #14
1 Rivet Member
 
2013 22' FB Sport
Huntley , Illinois
Join Date: Mar 2013
Posts: 15
Smile from chegard

My thanks to all of you. This opens many possibilities and we will get an adapter for all the above reasons. Since this is a sport model, our appliances are limited and I feel very confident in using the adapter now.

Thanks to all of you for your help.
__________________

__________________
chegard 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 01:10 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.