Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-18-2014, 07:09 AM   #1
Rivet Master
 
Msmoto's Avatar

 
2015 30' International
2009 27' FB International
2007 25' Safari
Greensboro , North Carolina
Join Date: Aug 2008
Posts: 1,502
Images: 135
Thirty Amp cord for new Fifty Amp service

I now have a new Serenity with the 50 Amp service. I have several old connection cords for 30 Amp service and am wondering exactly how to convert one of these so it has the female end to connect to the 50 Amp receptacle on the trailer and will allow me to plug the 30 Amp male plug into my generator. Maybe someone can give me instructions on where to obtain a 50 Amp female plug and how to wire the 30 Amp cord. I suspect it is done by using only one side of the two hot wires of the 110v 50 Amp connection.

So, first i need the female plug, second the instructions how to wire it.

Thanks for any help.
__________________

__________________
Happy trails and Good Luck
Ms Tommie Fantine Lauer, Greensboro, NC
AIR #31871 WBAC #4165 K4MTL

www.fantinesvoice.com
Msmoto is offline   Reply With Quote
Old 09-18-2014, 07:48 AM   #2
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
I've never wired one, but I have a 30 to 50 amp cord, and use it most of the time that I do not need both air conditioners. It must be jumpered internally to make both inputs hot because I can run everything in the trailer, just not at the same time.

I would say just jumper both the hot terminals together, and wire the return and neutral just like a 30 amp, and it should work fine. Just don't ever run both A/C units at the same time, and don't run the microwave when the A/C compressor is running, or you will trip breakers.
__________________

__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Old 09-18-2014, 07:56 AM   #3
Rivet Master
 
lsbrodsky's Avatar
 
2012 25' FB International
Trent Woods , North Carolina
Join Date: May 2013
Posts: 1,687
You do know there are 30/50 adaptors sold for plugging your 50 amp trailer into 30 amp shorepower? http://www.amazon.com/Camco-55185-Po...mp+rv+adaptors
They do not lock on like your cord but they are a cheap solution to what you want to do. Maybe more surfing would find one that locks to the trailer.
Larry
__________________
lsbrodsky is offline   Reply With Quote
Old 09-18-2014, 08:00 AM   #4
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
Quote:
Originally Posted by lsbrodsky View Post
You do know there are 30/50 adaptors sold for plugging your 50 amp trailer into 30 amp shorepower? Amazon.com: Camco 55185 PowerGrip 30M/50F AMP 18" Dogbone Electrical Adapter with Handles 3750W/125V: Automotive
They do not lock on like your cord but they are a cheap solution to what you want to do. Maybe more surfing would find one that locks to the trailer.
Larry
She doesn't want an adapter, but a plug to rewire a 30 amp cord to 50 amp input to the trailer, and end up with a cord like this: http://www.amazon.com/Conntek-14435-...to+30+amp+cord

This may be what you need? http://www.amazon.com/Generac-6331-5...b_title_garden
__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Old 09-18-2014, 08:06 AM   #5
Rivet Master
 
Msmoto's Avatar

 
2015 30' International
2009 27' FB International
2007 25' Safari
Greensboro , North Carolina
Join Date: Aug 2008
Posts: 1,502
Images: 135
Thanks, found one i can splice to my thirty amp cord and the wires will be correct.

NU-SET RV dogbone adapter 30 amp male to 50 amp female locking connector - Rv Receptacles - Amazon.com
__________________
Happy trails and Good Luck
Ms Tommie Fantine Lauer, Greensboro, NC
AIR #31871 WBAC #4165 K4MTL

www.fantinesvoice.com
Msmoto is offline   Reply With Quote
Old 09-18-2014, 08:24 AM   #6
Rivet Master
 
lsbrodsky's Avatar
 
2012 25' FB International
Trent Woods , North Carolina
Join Date: May 2013
Posts: 1,687
I knew someone had already invented that....
Larry
__________________
lsbrodsky is offline   Reply With Quote
Old 09-18-2014, 08:29 AM   #7
Rivet Master
 
richinny's Avatar
 
2011 34' Classic
Westchester Cty.NY , / Miami FL
Join Date: Jul 2007
Posts: 3,122
why do a splice? i use my 30 to 50 dogbone with my 30a cord. i can use it with any 30a cord and it avoids a splice that will be more likey to have a poor connection over time.
__________________
Ricky
2012 F150 Super Crew 5-1/2' bed Ecoboost 4x4 3.73 elec. lock diff. Propride hitch
give life. kidney & pancreas transplant 9/9/06
Ingrid-my unofficial '"World's Oldest Streamer" 1909-2008 R.I.P.
richinny is offline   Reply With Quote
Old 09-18-2014, 08:31 AM   #8
Rivet Master
 
Silverflames's Avatar

 
1969 29' Ambassador
brooksville , Florida
Join Date: Nov 2008
Posts: 1,262
Just remeber you will only be able to safely pull 30 Amps through that cord. If you pull more that that the cord will overheat and trip a breaker. You should be ok if you only use one AC unit. Just be carefull.
__________________
Not all those who wonder are lost.
Silverflames is offline   Reply With Quote
Old 09-18-2014, 08:36 AM   #9
Rivet Master
 
Msmoto's Avatar

 
2015 30' International
2009 27' FB International
2007 25' Safari
Greensboro , North Carolina
Join Date: Aug 2008
Posts: 1,502
Images: 135
Thanks, I will be running a 4000w generator and be cautious about only one A/C. Actually, i would most likely run no A/C, as I do not like to do this on the generator. But, my morning espresso, from a machine, this is important….
__________________
Happy trails and Good Luck
Ms Tommie Fantine Lauer, Greensboro, NC
AIR #31871 WBAC #4165 K4MTL

www.fantinesvoice.com
Msmoto is offline   Reply With Quote
Old 09-20-2014, 01:35 PM   #10
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by Msmoto View Post
Thanks, I will be running a 4000w generator and be cautious about only one A/C. Actually, i would most likely run no A/C, as I do not like to do this on the generator. But, my morning espresso, from a machine, this is important….
Every size wire has a current limit, no matter what you do.

A 30 amp cable, is good for 3600 watts, and a 50 amp cable is good for 6000 watts. Absolutely NO comparison.

Also, your 4000 watt generator, should only be used for a maximum 30 amp or 3600 watt draw. It's perfect for the trailer 30 amp cable.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 06-14-2015, 05:58 PM   #11
Rivet Master
 
Msmoto's Avatar

 
2015 30' International
2009 27' FB International
2007 25' Safari
Greensboro , North Carolina
Join Date: Aug 2008
Posts: 1,502
Images: 135
Important, New information

Having run the generator only marginally during the past year, I discovered that the A/C will not be powered by the 4000w generator as it is wired via a 30 Amp cord, which has only three wires. Instead, what happens is the output of the generator is only on one side of the 30 Amp four wire connection when wired to a three wire 30 Amp cord. So, only 15 Amps basically is available.

Thus, I completely rewired my 30 Amp cord, carrying the two hot sides, the common, and the ground as separate wires into the 50 Amp on the side of the trailer.

This is way more work than is advisable.....I had to completely disassemble the plug into the trailer, running four wires into it. While it is sold as a 30 to 50 Amp plug, what happens is the hot sides are combined in the trailer plug, thus, going to three wires.

I then added an AWG 10 Wire down the side of the original three wire cord, and when all was said and done, my Progressive Industries EMS-PT50C Electrical Management System showed no errors, about 122v from each side, and when hooked up and tested, the A/C units ran perfectly, one at a time of course.

When on "cool" and pulling the temp down inside the trailer, the A/C pulls about 17 Amps, thus the inability for a 15 Amp circuit to run it for over a minute or two.

When measured here is what I see when running from the generator, but please note, this is all at 30 Amps, plugged into a 4000w generator.
50 Amp Connection.002 by Tommie Lauer, on Flickr

Note, while the ends are both 50 Amp, I have labeled this cord so as not to inadvertently plug into a 50 Amp circuit, instead for generator use only.
__________________

__________________
Happy trails and Good Luck
Ms Tommie Fantine Lauer, Greensboro, NC
AIR #31871 WBAC #4165 K4MTL

www.fantinesvoice.com
Msmoto 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
1999 Airstream Land Yacht "Thirty" eBay Watch Airstreams on eBay 0 09-01-2011 12:00 PM
50/Fifty :: 1997 Airstream Limited BajaBabe Airstream Registry Discussions 0 08-19-2011 09:32 AM
hooked on a 1972 thirty-one footer pipet Member Introductions 3 04-14-2007 02:33 PM
Thirty-two years ago today... fireflyinva Off Topic Forum 0 07-22-2004 03:56 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:48 PM.


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.