Jayco RV Owners Forum

Thread Tools Display Modes
Old 09-30-2013, 10:17 PM   #1
Join Date: Aug 2013
Location: Tucson
Posts: 61
proper gauge wire from TT battery to TT itself?

Battery cable size from battery to load center.
We have a 2014 145RB Jay Flight Swift SLX (Baja Edition)
The neutral or negative cable (white) is #8 gauge and runs from negative battery post to TT chassis, and then on to the load center. (breaker box)
The hot or positive cable (black) is also #8 gauge but it has an inline #10 gauge fuse holder with a 30 amp fuse connected between the positive battery post and the #8 gauge positive cable, and then on to the load center, (breaker box)
The battery and the #10 gauge 30 amp fuse holder were provided and installed by the dealer prior to delivery.
Is this fuse necessary? Is the #10 gauge wire too small?
What is the proper gauge wire size from battery to trailer?
Thanks for responses.

ranchosinvacas is offline   Reply With Quote
Old 10-01-2013, 06:54 AM   #2
Senior Member
RoyBraddy's Avatar
Join Date: Sep 2011
Location: King George
Posts: 2,124
If you only have ONE battery installed i would say the smaller gauge wire is OK. The IN-LINE FUSE is necessary as a catastrophe cable fuse in case of a direct short to the cable. The battery is capable of alot of current for a short period of time and this fuse is there to protect the wiring from burning up in case a direct frame ground short...

If you was to install more batteries then I would go with 4AWG BATTERY CABLES...

Just my thoughts
Roy Ken
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA

"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
RoyBraddy is offline   Reply With Quote

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 State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 01:16 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.