Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-26-2009, 06:55 PM   #1
3 Rivet Member
 
Bing-Bing's Avatar
 
1994 34' Excella
Fulltiming , Out West
Join Date: Sep 2005
Posts: 122
Up grading to 50 amps...

My wife is getting tired of switching off the air conditioner so she can run the microwave. Is there a way to up grade to 50 amps and what would it cost? How about adding a rear air conditioner, with 50 amps will it support 2 at that time?
__________________

__________________
Bing-Bing is offline   Reply With Quote
Old 06-26-2009, 07:04 PM   #2
Rivet Master
 
willyd's Avatar
 
1993 34' Limited
Melbourne Florida , Springfield Ohio
Join Date: Nov 2006
Posts: 757
Images: 5
Bing-Bing, I have the same issue - I know the newer Airstreams that have 2 A/C units do run off 50 amps. I am looking for responses as well. Thanks for posting.
__________________

__________________
willyd is offline   Reply With Quote
Old 06-26-2009, 07:55 PM   #3
Rivet Master
 
Dwight's Avatar
 
1999 34' Excella
Joshua , Texas
Join Date: Apr 2002
Posts: 548
Images: 2
You can do it yourself, I did mine.

Just replace the existing breaker panel (mine came from Lowes) and add a 50amp outside socket, another length of Romex down the inside of the trailer wall and a transfer switch so you can use either your existing 30amp cord or a 50amp cord.
__________________
History doesn't repeat itself, people do!
Dwight is offline   Reply With Quote
Old 06-26-2009, 08:20 PM   #4
Rivet Master
 
JimGolden's Avatar
 
Vintage Kin Owner
1977 31' Excella 500
Berkeley Springs , West Virginia
Join Date: Sep 2005
Posts: 1,619
Images: 7
I'm also doing that switch.

I got one of those 50amp Intellipower units where it's got the new breaker box and the 12V fuse block and the power supply all in one housing. I'll have to change the main input wire from 30amp rated to 50amp (I believe that's a 6 gauge wire). My rig currently has a long cord that just goes into the coach and wires up....I'll change that to a plug inside the wiring housing and then get a nice 50' long thick as your arm 50amp chord.

That being said, I can run my a/c (15,000btu) and my old magic chef microwave at the same time no problem.

Turn off your electric water heater

Like I told my wife...there are four big current draws (a/c, water heater, microwave, blow dryer)...you can have any two

When I do the swap, I'll post it on here. Won't happen 'til after summer though...I'm too busy camping!

cheers
__________________
- Jim
JimGolden is offline   Reply With Quote
Old 06-26-2009, 09:54 PM   #5
Rivet Master
 
garry's Avatar
 
1969 31' Sovereign
Broken Arrow , Oklahoma
Join Date: Jan 2003
Posts: 1,362
Images: 7
Yes, it can and has been done.

But remember there are precautions you have to take as you have "NO" 240VAC appliances in the camper and you are running 240VAC into the camper.

You will have 120 VAC to each side of the new breaker box so use "ONLY" 120VAC breakers.

Your new power cord will "HAVE" to have a full size neutral wire (same size as the hot wires) since the load will not be balanced and the neutral can be carrying a good size load. Too small a neutral and it burns open then everything in the RV will most likely be zapped with 240V.

DO NOT tie neutral and ground together in the box they must be separate all the way to the CG main box or your house breaker box if plugged in at home.

50amp will power 2 air conditioners.

Cost. Breaker boxes and breakers are not very expensive the new 4 wire power cord will be expensive and very heavy I would guess over $3.50 per foot but I haven't priced one in a few years.

Disclaimer; I am not a certified electrician I have wired several houses and converted my MH to 50amp but I do not recommend you try it yourself unless you are familiar with AC wiring.

Garry
__________________
garry is offline   Reply With Quote
Old 06-27-2009, 01:09 AM   #6
3 Rivet Member
 
2009 30' Classic
Salem , Alabama
Join Date: May 2009
Posts: 96
I have a 30 C L 2009 model SA. I am also interested in up-grading to 50 AMP service. However, I would prefer a professional installation. Can someone provide an estimated cost to upgrade a 2009 unit. woppa4
__________________
woppa 4 is offline   Reply With Quote
Old 06-27-2009, 09:35 AM   #7
2 Rivet Member
 
crashxx's Avatar
 
1983 30' Airstream 300
Weatherford , Oklahoma
Join Date: Jan 2009
Posts: 55
Quote:
Originally Posted by garry View Post
Yes, it can and has been done.

But remember there are precautions you have to take as you have "NO" 240VAC appliances in the camper and you are running 240VAC into the camper.

You will have 120 VAC to each side of the new breaker box so use "ONLY" 120VAC breakers.

Your new power cord will "HAVE" to have a full size neutral wire (same size as the hot wires) since the load will not be balanced and the neutral can be carrying a good size load. Too small a neutral and it burns open then everything in the RV will most likely be zapped with 240V.

DO NOT tie neutral and ground together in the box they must be separate all the way to the CG main box or your house breaker box if plugged in at home.

50amp will power 2 air conditioners.

Cost. Breaker boxes and breakers are not very expensive the new 4 wire power cord will be expensive and very heavy I would guess over $3.50 per foot but I haven't priced one in a few years.

Disclaimer; I am not a certified electrician I have wired several houses and converted my MH to 50amp but I do not recommend you try it yourself unless you are familiar with AC wiring.

Garry

Hey Gary, I was thinking of doing a sort of 50amp conversion in my MH. Thought about keeping the existing 30 amp cord and putting in another auto trans switch on the line from my Onan that feeds A/C #2 and running a 120v plug where I could plug it into another 120v circuit to run just A/C #2. The switch would default to the Onan, but when plugged in it would switch to the ground power. Best I can tell, some campgrounds have a 30amp & 20 amp circuit. Does this sound like a good idea? Thanks
__________________
crashxx is offline   Reply With Quote
Old 06-27-2009, 12:21 PM   #8
4 Rivet Member
 
2008 16' Safari
Destrehan , Louisiana
Join Date: May 2009
Posts: 395
I agree, running a 120 20 amp line dedicated to the microwave is the better choice. You can mount the 20 amp plug in and then run it to the microwave only. You could even just use an extension cord to the power supply without making any mods to the trailer at all.
Changing out to a 50 amp service without up grading the power distrubution center is just asking for trouble. The 50 amp dist. center will both cost a lot and take up more space.
__________________
dlb435 is offline   Reply With Quote
Old 06-27-2009, 04:42 PM   #9
Rivet Master
 
garry's Avatar
 
1969 31' Sovereign
Broken Arrow , Oklahoma
Join Date: Jan 2003
Posts: 1,362
Images: 7
crashxx check your private messages
__________________

__________________
garry 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
What Amps??? Sundance Electrical - Systems, Generators, Batteries & Solar 8 03-31-2015 10:32 AM
AMPS 20? 30? 50? Which One Do I Want? Frank&Mike Batteries, Univolts, Converters & Inverters 7 06-24-2009 08:35 PM
Breaking up the 30 Amps soldiermedic Electrical - Systems, Generators, Batteries & Solar 11 07-20-2007 04:53 AM
How many Amps??? Sundance Batteries, Univolts, Converters & Inverters 3 07-03-2007 12:32 AM
Meter for amps davidz71 Electrical - Systems, Generators, Batteries & Solar 5 05-09-2002 11:21 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 04:48 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.