Using External Amp Fuses ?

[djman37 5,000+ posts]

sorry guys, i should clarify a bit better. the amp in question isnt the ones in my sig.
i have 2 pos. and 2 ground inputs and no idea of what the fusing should be.

well, i do have some specs from the spec sheet, but nothing about external fuse sizes.

the amp is rated at:

1250RMS x 1 @ 4ohms

2250RMS x 1 @ 2ohms

3450RMS x 1 @ 1 ohm

all tested at 13.8V acoording to the sheet

@djman37..... why do you say no glass allowed? and wouldnt 4x50amp fuses work as well as a single 200amp blade fuse, assuming it asks for 200amps of fusing?

also...

i got 0/1 guage running to the rear. should i split it into 2- 4guages for both the positive and negative dua-inputs or must i run 2 runs of 0/1 guage in both pos./neg. inputs ??

thx for the help!

holy CRAP! nice power.

40.1 rated at 3600@1 and wanted 200A per input and you have two amps?

that's 4 x 200a fuses spanning 4 1/0 inputs which would be serious fusing= no AGU for you.//content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif

I used two 10 x 1/0 d-blocks to gather and distribute power at that level.

There is a company that sells up to 500A fuses and it takes 2/0 inputs on the holder I believe if you want to t-off at the amp.

 

[BoomBoomBoy 10+ year member]

Reading>you.

Me 11 billionty times > you //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

 

[jrwalte 10+ year member]

OP,

You still haven't clearly identified if you are fusing the wires to protect the amp because it has no internal fusing, or because you want to fuse to protect the wire (if the amp has internal fuses then you don't need external fuses to protect the amp, but instead to protect the wire).

This makes a huge difference on which size fuse you should use.

 

[mokedaddy 5,000+ posts]

Me 11 billionty times > you //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif//content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif

//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 

[djman37 5,000+ posts]

I see in this thread you thought they were 2200 @ 1.

http://www.caraudio.com/forum/showthread.php?t=288149

the dual inputs is a bugger though.

 

[BoomBoomBoy 10+ year member]

OP,
You still haven't clearly identified if you are fusing the wires to protect the amp because it has no internal fusing, or because you want to fuse to protect the wire (if the amp has internal fuses then you don't need external fuses to protect the amp, but instead to protect the wire).

This makes a huge difference on which size fuse you should use.

You're right on all accounts, plus he hasn't told us what load he's running the amp at which makes a HUGE difference.

 

[scarolinablazin 10+ year member]

Glass fuses only go to 100 amps. You will need probably upwards of 400 amps of fusing for each amp being they are over 3000 watts. You can uses fuses like what you want though you would have to split two wires into four fuses which isnt ideal. Get four cheap fuse holders (parts express) and four 200 amp blade fuses.

what??? 4 fuse holders?? 800 amps worth of fusing?? i`m not going to act like i can answer this because the OP hasn`t given enough info. and you shouldn`t have answered at all if you think that would work and not be a fire hazard

 

[mokedaddy 5,000+ posts]

what??? 4 fuse holders?? 800 amps worth of fusing?? i`m not going to act like i can answer this because the OP hasn`t given enough info. and you shouldn`t have answered at all if you think that would work and not be a fire hazard

6000+ watts with four 0/1 inputs will require around 800 amps of fusing.

 

[95Prober 10+ year member]

OP,
You still haven't clearly identified if you are fusing the wires to protect the amp because it has no internal fusing, or because you want to fuse to protect the wire (if the amp has internal fuses then you don't need external fuses to protect the amp, but instead to protect the wire).

This makes a huge difference on which size fuse you should use.

sorry. i meant the amp itself coz it has no internal fusing.

ill be fusing the 0/1 guage wire up front near the battery seperately

 

[mokedaddy 5,000+ posts]

sorry. i meant the amp itself coz it has no internal fusing.
ill be fusing the 0/1 guage wire up front near the battery seperately

The real question should be, what does the rest of your electrical look like if you are running so much power?

 

[95Prober 10+ year member]

I see in this thread you thought they were 2200 @ 1.http://www.caraudio.com/forum/showthread.php?t=288149

the dual inputs is a bugger though.

no. this is another amp im talking about

and btw, ill be running just ONE not TWO. so, 3450x1 @1ohm on a single yellow top up front, possibly another batt. in the back

also the glass fuse holder that i have is pretty cool. it can hold any size fuse and STILL maintain a single 0/1 in to 0/1 out, NOT splitting into 4 smaller wires. so thats why i was wondering if i could use glass in the same way as blade-type without any problems ??

if the biggest they make is 100A in glass fuses, then im good up to 400A. but that final number is yet to be determined

 

[mokedaddy 5,000+ posts]

no. this is another amp im talking about
and btw, ill be running just ONE not TWO. so, 3450x1 @1ohm on a single yellow top up front, possibly another batt. in the back

If you are running one I would fuse it at 200 amps on each power wire. Definitely put a battery in the back and use that for your d-block.

 

[scarolinablazin 10+ year member]

i bet if you just tell what amp and at what ohm you`ll be running it you can get an accurate answer rather quickly. but if you prefer the guessing its up to you.

 

[djman37 5,000+ posts]

You're right on all accounts, plus he hasn't told us what load he's running the amp at which makes a HUGE difference.

Bah, no it doesn't. It doesn't say in my manual that if you run the amp at 4ohms you need different external fusing.

If he's running a 2200 at 1 ohm amp with 2 inputs, I BET if he got a hold of Zenon they would tell him 150A per input, if it's the 3450, then 200A per input IRREGARDLESS of ohm load.

I have the Zenon site somewhere in my links lemme see if I can get the specs.

 

[djman37 5,000+ posts]

you guys can ask them yourselves.

http://www.zenonaudio.com/login/products/digital-series1.htm