Go Back   iRV2 Forums > CAMPING, TRAVEL and TRIP PLANNING > Boondocking
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Thread Tools Search this Thread Display Modes
Old 01-01-2015, 12:01 PM   #1
Junior Member
Join Date: Jul 2013
Posts: 24
Transfer switch failed

I was helping a friend who apparently had a bad transfer switch. He bought a new TRC 40100. He connected shore power to a welding cable which has 220 v from hot leg to hot leg and 120 v to neutral...this ended up being 220v to neutral at the shore power terminals of the transfer sw.
(DO NOT HOOK TO UNKNOWN WELDING POWER CABLE!) After a couple of minutes of being energized, the relay dropped out. The 220v either burnt up the relay or damaged the printed ckt. bd.. The TRC does not furnish a schematic so I cannot trace the problem to pcb or relay coil. help schematic? relay coil terminals? pc board layout components? ideas?

LJJSRZ is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 01-01-2015, 01:06 PM   #2
Senior Member
BFlinn181's Avatar

Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 17,828
Normally a 50 amp RV outlet won't overload the neutral because the two 50 amp legs are 180 out of phase, so at any one instant there's never more than 50 amps from either leg. RV service also would only put that 50 amps into the neutral wire if one or both 50 amp legs were drawing their capacity amperage, which would require turning on every electrical device in the RV plus adding hair dryers, space heaters, etc.

You are correct in warning no to plug in to a power source for a welder, also a dryer or electric range outlet. In addition, your buddies actions speaks to the need of an EMS to protect the components of the RV from connection to faulty power.

I would hope TRC will repair or replace the unit, but fear since it was not a bad unit but bad power due to owner's error he might be out of luck.

I recommend you suggest a Progressive Industries EMS, they are guaranteed repair or replace for life and it would prevent damage from plugging in to a bad power source.


Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is online now   Reply With Quote

transfer switch

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
New Transfer Switch Marca Alpine Coach Owner's Forum 2 01-03-2015 09:47 AM
Transfer Switch burned up florida egg Alpine Coach Owner's Forum 7 11-28-2014 07:36 AM
Noisy Esco transfer switch Johnontheroad Monaco Owner's Forum 2 11-11-2014 06:29 PM
Transfer Switch Issue Chad K Entegra Owner's Forum 17 04-30-2014 07:44 AM
Transfer switch BayouMan Newmar Owner's Forum 3 01-16-2014 07:41 AM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:17 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.