Go Back   iRV2 Forums > TRAVEL TRAILER, 5th WHEEL & TRUCK CAMPER FORUMS > Travel Trailer Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 08-16-2016, 07:34 PM   #1
Senior Member
rarebear.nm's Avatar

Excel Owners Club
Join Date: Aug 2014
Location: Santa Fe, NM
Posts: 1,818
Fusing emergency brake wire

I installed an emergency brake-away switch on vintage trailer I was rebuilding, it did not have an emergency brake-away switch before. I debated as if you really want/need a fuse between the battery and the emergency break-away switch. My normal rule to fuse every lead on the positive side. But it seems that if that switch is activated for real you do not want a fuse to pop and deactivate the brakes at that moment. But after thinking about it more I'm not so sure of that idea. If the emergency switch is activated in a non-emergency case I might want it fused. I figure if the emergency brake is activated then the safety chains have also broken and the trailer is back there doing its own thing. Any opinions on this and what size of fuse/breaker is typically used for standard electric brakes on Dexter 3,000 lb axles?

Fred & Denise (RVM157) New Mexico
2007 Excel Classic 30RSO, 1050W Solar
2007 RAM 3500, Diesel, 6Spd Auto, SWD, 4x4, CC & LB
rarebear.nm 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 08-16-2016, 09:12 PM   #2
Senior Member
Skip426's Avatar

Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 15,853
I've never seen the trailer brake, break away system fused; on any of the 4 5ers I owned or any of the TTs I worked on. But if your really worried about it , install a 40 amp self resetting 12 volt circuit breaker.

99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
Skip426 is offline   Reply With Quote
Old 08-16-2016, 11:49 PM   #3
Senior Member
Highway 4x4's Avatar
Outdoors RV Owners Club
Join Date: Jan 2014
Location: La Verne, Calif
Posts: 2,270
No fuse. If that thing is activated you need it to work no matter what, could be the end of the TT. If it's activated on accident that's your fault.
2014 Wind River 250RDSW
2014 Ram 2500 Diesel Laramie 4x4, Snugtop shell,
One big spoiled Bernese Mtn Dog
Highway 4x4 is offline   Reply With Quote
Old 08-17-2016, 06:14 AM   #4
Senior Member
Join Date: Aug 2012
Posts: 1,577
The main concern is if the wire from the battery to the switch becomes shorted some bad things could happen. I would just give that wire extra protection.
lynnmor is offline   Reply With Quote
Old 08-17-2016, 06:20 AM   #5
Senior Member
Chuck_Hammer's Avatar
Join Date: Jul 2015
Location: Upper Right Ohio.. or?
Posts: 448
no fuse is more common

a 40 amp resetting circuit breaker ...

and the wire size , even with a dead short. will not start a fire.. just melt wire.
2012 Ford F 250,"XL" 6.2L Gas, 2 wheel drive. 156,000 miles
2005 Coachmen 29FKCS, Front Kitchen... 2005 Honda VTX1800F, 78,000 miles
N.E. Ohio in the Spring, Summer, Autumn.
Chuck_Hammer is offline   Reply With Quote
Old 08-17-2016, 10:02 AM   #6
Senior Member
rarebear.nm's Avatar

Excel Owners Club
Join Date: Aug 2014
Location: Santa Fe, NM
Posts: 1,818
Thanks for all responses. I'll stick to the no fuse solution.
Fred & Denise (RVM157) New Mexico
2007 Excel Classic 30RSO, 1050W Solar
2007 RAM 3500, Diesel, 6Spd Auto, SWD, 4x4, CC & LB
rarebear.nm is offline   Reply With Quote
Old 08-17-2016, 10:46 PM   #7
Senior Member
nineoaks2004's Avatar
Join Date: Jul 2011
Location: Graceville, Fl
Posts: 351
My 2016 Coleman has a self resetting 40 A circuit breaker. Hopefully I will never have to really try it out...

Every Meal is a Picnic and every Day a Holiday
nineoaks2004 is offline   Reply With Quote


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
Battery bank cabling/fusing HHIDan Newmar Owner's Forum 12 02-10-2015 09:16 PM
Emergency Air Brake Emergency 11B Class A Motorhome Discussions 12 04-18-2014 10:05 PM
Atwood Levelegs Fusing 06 Expedition Becuzz Fleetwood Products Owner's Forum 5 07-17-2013 01:49 PM
fusing for Suburan water heater diandtom RV Systems & Appliances 5 05-10-2011 09:49 PM
Which Wire? Brake Light Wire Off Switch mickey53usa Freightliner Motorhome Chassis Forum 2 04-14-2009 03:05 PM

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:31 PM.

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