Will I lose alot of voltage/current with 4 300 amp fuses per run of 1/0?

[mgcauctions09 10+ year member]

Ok heres the plan. 2 runs of 1/0 from alt to front battery with a 300 amp fuse on each cable between the alt. and batt for big 3. Then front front batt. the 2 1/0 cables will head back towards the back battery and get fused again with a 300 amp fuse on each cable. Right before the cables reach the battery bank I fuse again with a 300 amp fuse on each cable. The cables are wired into the battery bank and as the cables leave the battery bank to go to the amps they get fused again.

Does this sound right? It will be fused 4 times per run. (8 300 amp fuses) Will I lose alot of current and or voltage?

By the way: Each run is for an ap30001d amp. Cable is Kolossus fleks

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[kyleorsini 10+ year member]

someone correct me if im wrong but i think on your runs ud just fuse up front and then fuse before the amp.

 

[BassAddictJ 5,000+ posts]

you should be fine

 

[Tehgregzor 10+ year member]

don't even worry about it man, the VERY LITTLE loss you'll incur won't be audible, and the safety of your equipment will be ensured.

 

[wilj24 10+ year member]

I'd say yur set. a little much, but hey, its better to be safe then sorry. And if some builds consist of 100 of feet of wire, and still give the same voltage, im pretty sure your voltage wont drop from all the wire...

 

[mgcauctions09 10+ year member]

Well, how can the voltage/current that is able to flow through 1/0 be the same as the voltage/current flowing through the fuse filament? I mean you would think it would cut down the voltage/amperage.

 

[SWFL 10+ year member]

IDK, man i am doing a total of 7 fuses 2 upfront for the big 3 doing double that, then 2 runs of power to the back so a two fuses per power run thats 6 right there, then the

7th will be between the amp and the back batterys. Also a 150amp fuse to the mids and highs amp the 850.4

 

[smoka 10+ year member]

Well, how can the voltage/current that is able to flow through 1/0 be the same as the voltage/current flowing through the fuse filament? I mean you would think it would cut down the voltage/amperage.

A fuse is a solid conductor that is made to melt at a specific point. The voltage drop will be extremely small because the material doesn't have as high of a conductivity as copper. But the fuse is very short, so you are talking about mV drops so it won't be noticeable.

The main voltage drops will come from the length/size of wire and also if you use an isolator/solenoid etc. so you should be fine.

But don't you want to use 200a fuses for your amps?

 

[mgcauctions09 10+ year member]

No I bought 300 amp fuses since I will run at 2 ohms. The 200 amp fuses are for running at 4 ohms. Amp puts out a solid 2000 watts at 4 ohm and puts out over 3000 watts at 2ohm. Audiopipe told me to use a 300 amp fuse right before each amp. that is stupid, they should have included a 300 amp fuse to begin with.