how many fuses do i need?

[C1500martin 10+ year member]

so im about to order my SHCA wire and im wondering how many fuses i should buy?

ima do amp, big 3, and second battery. do i order 3?

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[shizzzon 10+ year member]

to be safe, there should be 2 fuses on front to rear power run, one between rear batt and amp and 1 on alt charge cable.

 

[C1500martin 10+ year member]

what kind of size fuse should i get? oh and ima have 2 amps forgot about that.

 

[shizzzon 10+ year member]

The method of fusing is to fuse the cable.

Smaller fuses are safer so if you are using a cable where the cable rating can handle more current than the device drawing\supplying the current, then use the lesser size fuse to compensate.

IE- fusing amp, they should tell you what size fuse to use. Technically a smaller fuse is fine...Example- Crescendo 5500 can run all day long @1ohm on a 250-300A fuse even though they suggest 500A.

IE- fusing front to rear batteries. This should be fused with the current rating of the cable. I NEVER recommend fusing any single cable greater than 300A. Both fuses should be fused with same size.

IE- Alt charging cable- Fuse Each cable(or the one if only one is used) about 15% greater that of the Alternator COLD rating itself but not exceeding 300A(my opinion).

 

[mylows10 5,000+ posts]

Also depends on the wire. If using Shca wire. Then 300 for ofc and 250 for cca. Just a FYI. No ofc wire in stock yet

 

[C1500martin 10+ year member]

Does this wiring doagram seem correct? The stars are the fuses. triangle distro block.

 

[C1500martin 10+ year member]

Also depends on the wire. If using Shca wire. Then 300 for ofc and 250 for cca. Just a FYI. No ofc wire in stock yet

really? its available to purchase online now, before it said out of stock but now i can checkout and everything?

 

[mylows10 5,000+ posts]

really? its available to purchase online now, before it said out of stock but now i can checkout and everything?

I talk to Jon all the time. Actually did 2 days ago. No ofc wire for another week or two I'm told. I'm a dealer to

 

[mylows10 5,000+ posts]

really? its available to purchase online now, before it said out of stock but now i can checkout and everything?

Checking now. Direct for you

 

[C1500martin 10+ year member]

Checking now. Direct for you

sweet, and man id love to get a tantric from you but i cant wait no more! i want bang in my truck by next week! and ronal said it would be over a month before i can get a hdd to me //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

 

[mylows10 5,000+ posts]

Yes that sounds about right I can get you a used ascendant team 15 for $600

 

[C1500martin 10+ year member]

Yes that sounds about right I can get you a used ascendant team 15 for $600

HAS to be a 12 nothing else will fit. does my wiring diagram seem correct to you?

 

[mylows10 5,000+ posts]

HAS to be a 12 nothing else will fit. does my wiring diagram seem correct to you?

How fast you need it. The wring looks ok

 

[mylows10 5,000+ posts]

Wires in stock. Also green and pink colors. You can order from me. And it will get shipped ASAP. Or from online and it will ship Monday

 

[Umbra]

The method of fusing is to fuse the cable.
Smaller fuses are safer so if you are using a cable where the cable rating can handle more current than the device drawing\supplying the current, then use the lesser size fuse to compensate.

IE- fusing amp, they should tell you what size fuse to use. Technically a smaller fuse is fine...Example- Crescendo 5500 can run all day long @1ohm on a 250-300A fuse even though they suggest 500A.

IE- fusing front to rear batteries. This should be fused with the current rating of the cable. I NEVER recommend fusing any single cable greater than 300A. Both fuses should be fused with same size.

IE- Alt charging cable- Fuse Each cable(or the one if only one is used) about 15% greater that of the Alternator COLD rating itself but not exceeding 300A(my opinion).

What is an alternator cold rating? Is that the optimal output due to cold conditions? I ordered some stuff for the Big 3 upgrade including 100A fuses for the alt to b+ connection. The alternator is rated 90 amps. Did I dun goof?

Sorry, I don't mean to hijack your thread.