Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-14-2017, 12:41 PM   #1
3 Rivet Member
 
mikeinca's Avatar

 
2017 25' Flying Cloud
Santa Rosa , California
Join Date: Feb 2017
Posts: 213
Connecting 50 amp Classic to house service

I've had the 30 amp service for our 25' FC hooked up via a dogbone to a 20 amp service connection on the exterior of my garage. No extension cords are involved; just the 30 amp cable and the adaptor. This has worked great for providing power to the trailer lighting, a battery maintainer, and even on a few occasions to run the 15000 BTU AC. I've measured voltage at the trailer with the AC running and it's never fallen below 118 volts.

We have a 30' Classic on the way which has, of course, 50 amp service. I want to use my 20 amp garage circuit to power the same kind of usage in the Classic that I have with the FC; I'm not looking to have anyone live in the trailer or run a bunch of stuff at one time.

I thought I'd get a 50 amp to 30 amp adaptor, and then connect the 30 amp to 20 amp dogbone to that to access to my garage service. Any problems with this plan?
__________________

__________________
2017 25' Flying Cloud Twin (gone)
2018 30' Classic Twin(on order)
2017 F250 6.7 max tow (coming)
200W portable solar
mikeinca is offline   Reply With Quote
Old 09-14-2017, 12:57 PM   #2
Rivet Master
 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 5,913
Why not just bite the bullet, upgrade the wiring, and put a correct 50 amp outlet on the outside wall? Is the breaker panel nearby? That way you would have full use of the new AS.

Seems like a less dangerous solution, although this layman cannot identify the exact risks with the multiple adapters "solution," except maybe some melted/fried cords or adapters.

Good luck!

Peter
__________________

__________________
OTRA15 is offline   Reply With Quote
Old 09-14-2017, 01:08 PM   #3
3 Rivet Member
 
mikeinca's Avatar

 
2017 25' Flying Cloud
Santa Rosa , California
Join Date: Feb 2017
Posts: 213
Peter, that would be an ideal solution, although expensive, as my current electrical panel is full and significant rewiring would be required. Given the minimal electrical load I want to support (I don't even really need to run AC) I was hoping the adaptor solution would work as it has for the FC. I've already "bitten the bullet" on the new trailer, new truck, and driveway re-do. Another bite of the bullet might cause lead poisoning!
__________________
2017 25' Flying Cloud Twin (gone)
2018 30' Classic Twin(on order)
2017 F250 6.7 max tow (coming)
200W portable solar
mikeinca is offline   Reply With Quote
Old 09-14-2017, 01:14 PM   #4
Rivet Master
 
2014 20' Flying Cloud
Long Island , New York
Join Date: Jun 2015
Posts: 5,913
I thought as much. We run our FC20 off a 15-amp circuit just to keep the batteries charged and fridge cool, so your plan is probably do-able. I just don't feel competent to give it a green light.
__________________
OTRA15 is offline   Reply With Quote
Old 09-14-2017, 01:18 PM   #5
Rivet Master
 
wulfraat's Avatar

 
2017 30' International
Broomfield , Colorado
Join Date: Apr 2009
Posts: 749
Images: 1
I have 50A and connect to my house 15A all the time. You are fine. Just use a 50->30 and a 30->20/15 adapter as you've cited.

With 20A you can even run one of your ACs.

Simply avoid the following so as not to overload your 20A circuit...

> don't run both ACs at the same time
> don't run one AC and the electric hot water tank heater at the same time
> don't run the AC and the microwave at the same time
> don't run the electric hot water tank heater and the microwave at the same time

.. otherwise kickback and enjoy 20A shore power at home...

PS - The worst thing that would happen is that you trip your 20amp breaker if you accidentally overload the circuit. no biggie.
__________________
wulfraat is offline   Reply With Quote
Old 09-14-2017, 01:34 PM   #6
Rivet Master
 
switz's Avatar

 
2014 31' Classic
2015 23' International
2013 25' FB International
Apache Junction , Arizona
Join Date: Sep 2012
Posts: 4,736
Images: 8
Note that there are two power legs for 50 amp service. The usual 30 amp to 50 amp adapter may connect the two power leads to the trailer breaker panel together.

In the for what it is worth department, RV 50 amp service has two 120Vac legs at 50 amps for 6,000 watts per leg, 30 amps = 3,600 watts at 120Vac, 20 amps = 2,400 watts at 120 Vac and 15 amps = 1,800 watts at 120Vac.

We have issues running the main A/C when on 30amp (using a combining adapter for the 50 amp power cord) service. The rear A/c works just fine.
__________________
WBCCI Life Member 5123, AIR 70341, 4CU, WD9EMC

TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell

2014 31' Classic model 30 twin beds, 50 amp service, 900 watt solar system, Centramatics, Dill TPMS, disc brakes, 16" tires & wheels
switz is offline   Reply With Quote
Old 09-14-2017, 01:34 PM   #7
3 Rivet Member
 
mikeinca's Avatar

 
2017 25' Flying Cloud
Santa Rosa , California
Join Date: Feb 2017
Posts: 213
Thanks, wulfraat. It seemed to make sense that using the adaptors would work with the restrictions you mention but I just wanted to make sure I wasn't overlooking something.
__________________
2017 25' Flying Cloud Twin (gone)
2018 30' Classic Twin(on order)
2017 F250 6.7 max tow (coming)
200W portable solar
mikeinca is offline   Reply With Quote
Old 09-14-2017, 01:45 PM   #8
Rivet Master
 
wulfraat's Avatar

 
2017 30' International
Broomfield , Colorado
Join Date: Apr 2009
Posts: 749
Images: 1
Quote:
Originally Posted by switz View Post
We have issues running the main A/C when on 30amp (using a combining adapter for the 50 amp power cord) service. The rear A/c works just fine.
I don't.

I can run either front/rear AC on 15, 20 or 30amp service.

My adapter 30->50 adapter bridge the hot legs so both legs on the 50A inlet are hot.
__________________
wulfraat is offline   Reply With Quote
Old 09-14-2017, 01:48 PM   #9
3 Rivet Member
 
mikeinca's Avatar

 
2017 25' Flying Cloud
Santa Rosa , California
Join Date: Feb 2017
Posts: 213
Quote:
Originally Posted by switz View Post
Note that there are two power legs for 50 amp service. The usual 30 amp to 50 amp adapter may connect the two power leads to the trailer breaker panel together.

In the for what it is worth department, RV 50 amp service has two 120Vac legs at 50 amps for 6,000 watts per leg, 30 amps = 3,600 watts at 120Vac, 20 amps = 2,400 watts at 120 Vac and 15 amps = 1,800 watts at 120Vac.

We have issues running the main A/C when on 30amp (using a combining adapter for the 50 amp power cord) service. The rear A/c works just fine.
Just out of curiosity, do you know why you have issues running the main AC using a combining adaptor? Does the 50-30 amp adaptor restrict power to less than the 3600 watts you would normally get from a 30 amp circuit? Or does the main AC require more than 3600 watts?
__________________
2017 25' Flying Cloud Twin (gone)
2018 30' Classic Twin(on order)
2017 F250 6.7 max tow (coming)
200W portable solar
mikeinca is offline   Reply With Quote
Old 09-14-2017, 01:50 PM   #10
3 Rivet Member
 
mikeinca's Avatar

 
2017 25' Flying Cloud
Santa Rosa , California
Join Date: Feb 2017
Posts: 213
Quote:
Originally Posted by wulfraat View Post
I don't.

I can run either front/rear AC on 15, 20 or 30amp service.

My adapter 30->50 adapter bridge the hot legs so both legs on the 50A inlet are hot.

Which adaptor do you use? I was considering this one on Amazon:

https://www.amazon.com/dp/B000BUQOGI...=2ZNOH6PIGDHU5
__________________
2017 25' Flying Cloud Twin (gone)
2018 30' Classic Twin(on order)
2017 F250 6.7 max tow (coming)
200W portable solar
mikeinca is offline   Reply With Quote
Old 09-14-2017, 02:05 PM   #11
Rivet Master
 
paiceman's Avatar

 
2017 30' Classic
Some City , Somewhere
Join Date: Aug 2011
Posts: 2,364
Images: 1
Our 2017 Classic when home is connected to a 110 service at our storage facility. I have a surge protector on it and adapters to run 30amp cord to the 110 plug. We run the refridge before a trip and before a trip in winter we turn the Alde on to keep the trailer heated and also use the Alde when we drive with the tank heaters also on.

Works fine.

Bud
__________________
SAFE TRAVELS
2017 30' Classic - F350 6.7 Diesel Crew
USAF - Military Training Instructor (TI) - 68-72
paiceman is offline   Reply With Quote
Old 09-14-2017, 02:22 PM   #12
Rivet Master
 
wulfraat's Avatar

 
2017 30' International
Broomfield , Colorado
Join Date: Apr 2009
Posts: 749
Images: 1
Quote:
Originally Posted by mikeinca View Post
Which adaptor do you use? I was considering this one on Amazon:



https://www.amazon.com/dp/B000BUQOGI...=2ZNOH6PIGDHU5


Not sure - came with my 2017 trailer - supplied by colonial airstream. Not sure what brand but can check later in the day when I fetch the trailer for a trip this weekend.
__________________
wulfraat is offline   Reply With Quote
Old 09-14-2017, 02:25 PM   #13
Rivet Master
 
wulfraat's Avatar

 
2017 30' International
Broomfield , Colorado
Join Date: Apr 2009
Posts: 749
Images: 1
Connecting 50 amp Classic to house service

Quote:
Originally Posted by mikeinca View Post
Just out of curiosity, do you know why you have issues running the main AC using a combining adaptor? Does the 50-30 amp adaptor restrict power to less than the 3600 watts you would normally get from a 30 amp circuit? Or does the main AC require more than 3600 watts?


It sounds like his adapter does not deliver 2 hot legs to the trailer. So items hanging off the leg that is not hot (like the front AC) don't see any shore power.

Adapters themselves do not restrict current.
__________________
wulfraat is offline   Reply With Quote
Old 09-14-2017, 03:26 PM   #14
3 Rivet Member
 
mikeinca's Avatar

 
2017 25' Flying Cloud
Santa Rosa , California
Join Date: Feb 2017
Posts: 213
Quote:
Originally Posted by wulfraat View Post
Not sure - came with my 2017 trailer - supplied by colonial airstream. Not sure what brand but can check later in the day when I fetch the trailer for a trip this weekend.
Thanks. That would be great. I'd rather not have to deal with the situation you describe below.

Quote:
Originally Posted by wulfraat View Post
It sounds like his adapter does not deliver 2 hot legs to the trailer. So items hanging off the leg that is not hot (like the front AC) don't see any shore power.
__________________

__________________
2017 25' Flying Cloud Twin (gone)
2018 30' Classic Twin(on order)
2017 F250 6.7 max tow (coming)
200W portable solar
mikeinca 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
Connecting 30 amp cord to 15 amp circuit Matth57 Batteries, Univolts, Converters & Inverters 8 06-21-2017 09:25 AM
30 Amp to 15 Amp Adapter to House Power Question Steamboatbob Batteries, Univolts, Converters & Inverters 29 04-09-2017 09:43 PM
Connecting TV to House Sound in Interstate stast01 Audio, Video & TV 0 10-26-2016 12:07 PM
Service snafu $&!&& and which battery is which amirm Sprinter and B-van Forum 25 07-04-2016 09:19 PM
Connecting to a house jpsuttoniii Full-Timing 2 04-16-2013 02:44 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 08:11 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.