how to determine inline fuse rating

[mat3833 10+ year member]

decided on 4 total. 1 for the alt to bat, 1 for bat to distro, and 1 for each amp. going to fuse each amp at their fuse rating, fuse the bat to distro @ 250, and fuse the alt to bat @300.

anyone have a good place to buy 2 weatherproof 0ga inline fuse holders that come with fuses and 2 inline 4 ga fuse holders that come with fuses?

Matt

 

[jnewnam88 10+ year member]

decided on 4 total. 1 for the alt to bat, 1 for bat to distro, and 1 for each amp. going to fuse each amp at their fuse rating, fuse the bat to distro @ 250, and fuse the alt to bat @300.
anyone have a good place to buy 2 weatherproof 0ga inline fuse holders that come with fuses and 2 inline 4 ga fuse holders that come with fuses?

Matt

So you are going to run 0 ga wiring from the distro blocks to the amp with a 50 amp fuse???

 

[mat3833 10+ year member]

im running 4ga from the distro to the amps and i figured someone would tell me to fuse for the 250-300 amps the wire is rated for. lol

Matt

 

[mat3833 10+ year member]

so i should fuse the 0ga at 300 and the 4ga at 250 amps instead of dropping the value down to what the amps are fused for?

Matt