250A fuse enough for 1/0 AWG?

[SPL Blazer 10+ year member]

Run the 250. You'll be fine.

X2, you don't have to run the 300 amp fuse, but it's closer to what the wire is rated for. If you already have a 250 fuse then go for it.

 

[roarzorz 10+ year member]

You mentioned the big 3. Are you putting this fuse between the Alternator and main battery?

 

[Nevalite 10+ year member]

Yeah

 

[BoomBoomBoy 10+ year member]

Don't listen to this guy, he either has no idea what he's saying or he's just trying to be a smartass. What would be the purpose of putting in a fuse under the necessary rating?

You're a freaking moron. It is you that doesn't seem to understand basic electrical safety. //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

Why don't you explain to the forum why it's a bad thing to put a 250A fuse on a 1/0 wire vs. a 300A fuse?

I'll repeat it again since you didn't seem to grasp it the first time. It's never a bad idea to underfuse a circuit, particularly if that circuit never draws the electrical maximum load. Underfusing allows for a margin of safety, and that my friend is never a bad idea. I'd always rather replace a fuse, than have a fire, PERIOD!

I bet you over fuse amps as well and prefer the output transistors to act like fuses.

GTFO! //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[mazzasec 5,000+ posts]

wasn't there just a thread a week ago about some one having a 250a fuse melting and smoking on 0g wire under normal load?

its might have been from me i was only running a 150 amp fuse of 1/0 gauge going to a zx2500