the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

what’s better, copper clad alum or ofc


Post ReplyPost New Topic
< Prev Topic Next Topic >
flm09 
Member - Posts: 26
Member spacespace
Joined: September 17, 2014
Location: British Columbia, Canada
Posted: October 15, 2014 at 8:33 AM / IP Logged  
So then what is the best fuse rating I should put in there?
Custom_Jim 
Copper - Posts: 210
Copper spacespace
Joined: November 28, 2003
Location: Missouri, United States
Posted: October 15, 2014 at 10:28 AM / IP Logged  
If I had the 4 gauge OFC kit and the amp you have now has a 40A fuse, then I would put a 60A under the hood by the battery.
If later you replace that amplifier with the 40A fuse with an amplifier that draws 100A, then keep the original 150A fuse and put that in place of the 60A later.
Jim
1968 Chevy II Nova Garage Find 2012
1973 Nova Custom
1974 Spirit of America Nova
1973 Nova Pro-Street
soundnsecurity 
Gold - Posts: 2,711
Gold spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: November 10, 2008
Location: Louisiana, United States
Posted: October 15, 2014 at 10:48 AM / IP Logged  
custom jim, the amp he is wanting has 2x 40A fuses, 80 amps worth of fuses. if it were just 40A than an 8 gauge would be just fine.
there really is no specific answer. the main under hood fuse is only there to protect the wire itself incase something happens to the wire that cuts into it and causes a short. you will be good with a fuse that is bigger than 80A and smaller than 150A which is the maximum of that 4 gauge wire. the fuses on the amp are there to protect the amp. thats how a system is usually designed to work. but there is nothing wrong with using a smaller fuse, to me that is the same as over sizing the wire. i just wanted to explain why this system works so you can make your own judgements as your system might change.
flm09 
Member - Posts: 26
Member spacespace
Joined: September 17, 2014
Location: British Columbia, Canada
Posted: October 15, 2014 at 10:51 AM / IP Logged  
This amp has two 40 amp fuses? So what I should put near the battery?
soundnsecurity 
Gold - Posts: 2,711
Gold spaceThis member has made a donation to the12volt.com. Click here for more info.spacespace
Joined: November 10, 2008
Location: Louisiana, United States
Posted: October 15, 2014 at 10:58 AM / IP Logged  
flm09 wrote:
This amp has two 40 amp fuses? So what I should put near the battery?
saw the mistake as i was editing my last post. yea you need to use anything from an 80A fuse to a 150A fuse. those are your limitations. if you read my last post it explains why. although if your requirements are only 80A then i would go with a 100A because it keeps the amp from blowing the expensive main fuse and also still protects the wire.
flm09 
Member - Posts: 26
Member spacespace
Joined: September 17, 2014
Location: British Columbia, Canada
Posted: October 16, 2014 at 12:42 AM / IP Logged  
Cool! Thanks for both your advice!
Page of 2

Sorry, you can NOT post a reply.
This topic is closed.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Friday, March 29, 2024 • Copyright © 1999-2024 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer