Fuse Question

[tysonm 0]

I can get a Tsunami 1/0 Fuse holder (new) with a 250 amp fuse for $20 Shipped. So I have three questions.

1. Is this a good deal? If so, then I need help answering a couple questions.

2. I currently have a 90 amp fuse and have a Cadence ZRS-8 doing around 1800 rms probably. I am pretty sure the 90 amp fuse is bottle necking the power (if I have my volume all the way up), will this fix the bottle necking problem by going to a 250 amp fuse?

3. Is 1/0 good enough for 2k rms?

Edited May 25, 2010 by Crash

[Kanaworm$ 292]

You're actually fusing the current capacity of the wire. The fuse at the front is going to protect the rest of your vehicle from burning up if the battery cable suffers a short due to accident or other.

$20 shipped with a 250 amp fuse is a good price. Ask if you can get a 300 amp fuse instead for the 0 gauge.

Make sure you have done the "Big 3" as well.

[tysonm 0]

It is from a forum member on another site but I haven't done the "Big 3" yet because I am trying to sell my car and am just trying to get the equipment I will need so I can do the "Big 3" once I get a new vehicle. I doubt he has a 250 fuse but I will see. Will I be doing a 250 fuse with 2k rms for now? (won't be putting out 2k rms until I get a new vehicle though)

[KU40 173]

Fuses don't bottleneck power. Just because it's a 90 amp fuse doesn't mean it will only allow 90 amps to flow through it. They don't restrict power. They only react to power flowing through them. Fuses won't even blow if you have more than their rated power flow through them for a short period, as transients in a song call for. It has to be a sustained draw for up to a couple seconds. There is an SPL competition organization that makes classes based on fuse size, and you know people put as small of a fuse as they can on as big of an amp as they can and really test the limits of the fuse, but they only need that one second burp so the fuse doesn't often blow.

[GlassWolf 5]

Fuses. Understand how they work.

[tysonm 0]

From some posts I've found online it says that with 1500-2k rms I should have 2 gauge wire. I will probably do 1 or 0 gauge since I see lots of that for sale, so if I put in either 1 or 0 gauge wire and a 250 ANL fuse, would that work or is a 250 fuse to large and if something were to act up would my amp blow (Cadence ZRS-8 1500 rms @ 1 ohm, really puts out around 18-1900 rms), or would the fuse blow?

[jonbearsmt 919]

are you reading what is posted???

[shizzzon 461]

hey KU40- i've ran 1100A of current through 320A of fusing for about 1.5 seconds before the fuses blew but was long enough to get the score i needed.

From what i've seen, Mini-ANL fuses can handle up to 3.5x their rating continuously for about 2 seconds.

AGU fuses can handle 2x their rating continuously for about 6-8 seconds. When going above 2x their rating.. they start to go pretty quick!

I have yet to test ANLs.

[tysonm 0]

Let me try asking my question in a different way then. What size of fuse would work best with 2k rms?

[The enD 467]

Let me try asking my question in a different way then. What size of fuse would work best with 2k rms?

The fuse goes with the wire, not the power. You tell us what wire you are running, we tell you what fuse you need.

Fuses. Understand how they work.

Good stuff right here. OP you should read it all.

[tysonm 0]

I will probably do 1 or 0 gauge wire

I will be using either 1 or 0 gauge.

I did read it all, but didn't see anything that told me what size of fuse is best used with 1/0 gauge wire and 2k rms.

Edited May 26, 2010 by Crash

[KU40 173]

250 amp should be fine.

[tysonm 0]

Thanks KU40

[adamt 1]

No stop

rephrase everything. None of you make sense

[Kanaworm$ 292]

No stop

rephrase everything. None of you make sense

Please explain?

[BanginGMC 23]

No stop

rephrase everything. None of you make sense

Read slower?

Edited May 26, 2010 by BanginGMC

[adamt 1]

The kid is asking advice on a 250a fuse and doesn't know the difference between 1 and 0 ga.

And all the while people are trying to logistically explain something that is illogical to this guy.

I say don't buy the fuse block!!!

Stop and catch up bro you need to do some reading before your wallet flies open.

If not I got some nice ocean front property in ks for sale.

I read it all just fine

[KU40 173]

All he's going to find is 1/0 gauge. I've never seen 1 gauge. Anyway, to the OP, 0 gauge IS 1/0. The 1 just means one zero. To take it further, 2/0 is written out as 00. 3/0 is 000, 4/0 is 0000, etc. The more 0s, the bigger the wire.

Find some 1/0, buy it, and find an ANL fuse holder and buy it (I assume the 90 amp fuse you have now is an AGU fuse?), and buy a 200-250 amp fuse for the fuse holder. That's all you need. It's not hard.

You do need the 1/0. However, you don't NEED the bigger fuse if this one never blows. You could put the AGU fuse you have on the 1/0, and if it ever blows, then replace it with an ANL. It may never blow. I have a 100 amp fuse ANL fuse on my 1/0 wire with a 1200 watt sub amp and 200 watt 4 channel amp, and it hasn't blown in the 5 years I've had it.