30/50 amp needs - Page 2 - Escape Trailer Owners Community

Go Back   Escape Trailer Owners Community > Escape Tech > Problem Solving | Owners helping each other
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 09-27-2015, 11:22 AM   #11
Senior Member
 
Jim Bennett's Avatar
 
Join Date: Oct 2008
Location: Calgary, Alberta
Trailer: 2017 Escape 5.0 TA
Posts: 11,933
Quote:
Originally Posted by Vermilye View Post
I've even met individuals that carry two 50 amp to 30 amp adapters, each connecting to a different leg of the 50 amp connector hot connections. They check both to determine which leg has the highest voltage...
I am not following this, Jon. Are there typically two legs run to each pedestal? I would think the only reason that this would be the case, is if they required 240V for some reason. Lots of other sound reasoning to have one that you portray though.

Regardless, it sounds like the 50A to 30A adapter might prove useful into the future at some time, when we travel more and may hit this situation.

I know I use the 15A to 30A adapter WAY more than I just use the 30A alone. At home, friends places, or even the odd campground.
__________________

__________________
2017 Escape 5.0 TA
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
“Most folks are about as happy as they make up their minds to be.” — Abraham Lincoln
Jim Bennett is offline   Reply With Quote
Old 09-27-2015, 12:07 PM   #12
T&R
Senior Member
 
Join Date: Dec 2014
Location: Medford, Oregon
Trailer: "Olaf" 2015 21'..... 2015 Tundra CrewMax
Posts: 110
50A circuits are 240v which is why (with assumingly custom adapters) you can use one leg or the other.

Also if purchasing a new Escape trailer ETI provides the 15/30 adapter.
__________________

T&R is offline   Reply With Quote
Old 09-27-2015, 12:17 PM   #13
Senior Member
 
Jim Bennett's Avatar
 
Join Date: Oct 2008
Location: Calgary, Alberta
Trailer: 2017 Escape 5.0 TA
Posts: 11,933
Quote:
Originally Posted by T&R View Post
50A circuits are 240v
I never realized this, thinking everything in campgrounds was 120V. All RVs with 50A connections are 240V then? It does make sense for those power hungry units, with multiple A/C units, and probably lots of draw.
__________________
2017 Escape 5.0 TA
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
“Most folks are about as happy as they make up their minds to be.” — Abraham Lincoln
Jim Bennett is offline   Reply With Quote
Old 09-27-2015, 04:21 PM   #14
Senior Member
 
Join Date: Dec 2012
Location: Edmonton, Alberta
Trailer: 1979 Boler B1700
Posts: 9,041
  • The "30 amp" connection for RVs is a simple 120V setup: neutral, hot (120V above neutral), and protective ground. The connector used is the NEMA TT-30
  • The "50 amp" connection for RVs is identical to that normally used for a household kitchen range: neutral, two hot connections each 120V from neutral and out of phase so they are 240V from each other, and protective ground. The connector is a NEMA 14-50.

Although 240V is available with the 14-50 (50 amp) connection, I've never heard of a 240V device being used in an RV; just like most of the circuits in a house, the two hot legs are used to supply separate circuits. If they do use the 240V combination, those circuits would not be usable on a 30 amp connection. There are Y-adapters which supply one leg of the RV's 50 amp service from a 30 amp (TT-30) socket and the other leg from a 15 amp or 20 amp (regular household) socket (or from two 30 amp, if you strangely have two available); since there is no way to ensure that the two legs are on opposite phases, this setup does not necessarily enable 240V appliance use.

An adapter to run a 30 amp RV from a 50 amp outlet must be wired to connect to one and only one of the hot legs of the 50 amp supply. I haven't noticed which one is used being indicated on the adapter and I've never noticed a choice of "L1 or L2" versions - but it makes sense as Jon explained. One could easily build both versions; each adapter is just a plug, a female connection, and short section of 30-amp 3-conductor (including ground) cable. I assume that the commercial produced adapters all connect to the same leg of the 50 amp service, presumably L1.

Because the 50 amp service has two circuits of 50 amp capacity each, it can provide over three times as much power as the 30 amp service. This is needed to run two air conditioners (or two circuits of heaters) in combination with other significant appliances.
Brian B-P is offline   Reply With Quote
Old 09-27-2015, 06:30 PM   #15
Senior Member
 
Vermilye's Avatar
 
Join Date: Feb 2010
Location: Oswego, New York
Trailer: 2016 Tacoma Off Road, 2017 21
Posts: 2,279
There are a few high end class A RVs that do use 240v appliances (usually bus conversions, etc). The problem as Brian points out is they can not be used on a 30 amp, 120V connection. The solution the high end units use is a pair of inverters that are designed to sync together to produce 120/240 volts. The 30 amp connection charges the batteries through the converter & they supply the 240V necessary for the appliances. Not ideal, since it is easy to use more watts than the 30 amp connector can supply to the converter charging the batteries, but it does let you build an all electric 240v RV.
__________________
Jon Vermilye My Travel Blog
Travel and Photo Web Page ... My Collection of RV Blogs 2016 Tacoma, 2017 21
Vermilye is offline   Reply With Quote
Old 09-30-2015, 06:34 PM   #16
Senior Member
 
gbaglo's Avatar
 
Join Date: Oct 2008
Location: North Vancouver, British Columbia
Trailer: 2009 Escape 17B - "Toad". '08 Toyota RAV4 V6
Posts: 10,721
Went to North Shore RV today to perhaps pick up a 50/30 amp adapter. Never did ask the price. It was a huge chunk of wire and plugs about a foot long and looked like it weighed lots.
Decided if I ever have a site where it would be required, I'll just move or run on my battery. I don't have air conditioning so I'd be hard-pressed to NEED an adapter.
__________________
2009 Escape 17B "Toad"
2008 Toyota RAV4 V6 Sport
North Vancouver, British Columbia

What happens to the hole when the cheese is gone?
- Bertolt Brecht
gbaglo is offline   Reply With Quote
Old 09-30-2015, 07:15 PM   #17
Senior Member
 
float5's Avatar
 
Join Date: Nov 2010
Location: Denison, Texas
Trailer: 2015 21'; 2011 19' sold; 4Runner; ph ninezero3 327-27ninefour
Posts: 4,898
In the U.S., we have almost never been to a campground that did not have 30 and 50 amp. We found in Canada that we had 30 amp only, at almost all sites, no 50s. Glad we had a smaller trailer that runs on 30. Think we once needed an adaptor long ago for 50 to 30 but good to have in that rare situation.
__________________
Cathy. Floating Cloud
"Live in the sunshine, swim the sea, drink the wild air.... "
Emerson
float5 is offline   Reply With Quote
Old 09-30-2015, 11:42 PM   #18
Senior Member
 
Join Date: Dec 2012
Location: Edmonton, Alberta
Trailer: 1979 Boler B1700
Posts: 9,041
Quote:
Originally Posted by Floating Cloud View Post
In the U.S., we have almost never been to a campground that did not have 30 and 50 amp. We found in Canada that we had 30 amp only, at almost all sites, no 50s. Glad we had a smaller trailer that runs on 30.
It seems that 50-amp sites are less common in Canada, perhaps because the primary reason to need more than 30 amps x 120 volts is multiple air conditioners... which are not so necessary in most areas of Canada. Entire RV parks filled with big units (Class A motorhomes and large fifth-wheels) over the winter in the B.C. Lower Mainland have almost entirely 30-amp sites - even the big units make do with 30 amps.

An exception would be Nk'Mip (the campground where the annual Escape Rally is held), which has various power provisions, but two big loops of entirely 50 amp sites; not just coincidentally, this is in the Okanagan valley, where it can get hot for extended periods in the summer.
__________________

Brian B-P is offline   Reply With Quote
Reply

Thread Tools
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



All times are GMT -5. The time now is 03:46 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 Social Knowledge, LLC All Rights Reserved.