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Old 10-18-2010, 05:37 PM
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Default need quick help with what size fuses I need

I`m a n00b and im just about to place my order for distrobution blocks and fuse holders.

The amps I`m going with is a DSC1500.1 (70A x 2) and a Onx 4.80 (25A x 2)

1) What size ANL fuse should I get for the inline fuse holder?
2) What size fuses for the distribution block? The first one I am looking at uses MANL and the second uses ANL fuses. They each use separate fuses for each output
3) What size fuse do I need for the wire going from the battery to the alternator (big 3)? I have a 2008 altima 2.5S I'm trying to find info on the amp output right now
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Old 10-18-2010, 05:43 PM
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1) depends on the size of the wire. Most 1/0 will carry 250-300 amps so I would go with one of those
2) in the dist block I use as close to the amps fusing w/o going under.
3) I don't run one, but if you want to run one to match alt's peak ouptut or as close to it w/o going under.
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Last edited by KAPONE.SS; 10-18-2010 at 05:45 PM.
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Old 10-18-2010, 05:48 PM
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I will be using 1/0 wire and then 4 from the distro to the amps. So I should use 250-300 amps even if my amps wont be drawing that much?
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Old 10-18-2010, 05:50 PM
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Fuses are to protect the wire not the amps. The amps have onboard fuses to protect them.
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Old 10-18-2010, 05:56 PM
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Quote:
Originally Posted by craiggus365 View Post
Fuses are to protect the wire not the amps. The amps have onboard fuses to protect them.

Yes and what ^^^^^^ said is correct.
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Old 10-18-2010, 05:59 PM
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Alright thanks guys. I was just a little confused because the place where I got my current amp installed from only used a 100a fuse and my amp is 70x2, and one of the guys in the shop said I need to match the amp and other said some other shit that didnt make much sense (never going back there). I'm using 4ga currently.

I believe the KNU 0 gauge carries a max of 250a so I guess I'll go with 300.

Last edited by n023b; 10-18-2010 at 06:08 PM.
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Old 10-18-2010, 06:28 PM
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what this thread has alil misleading info... umm lets start here by saying,,,, use rated fused to match the rating for the amps max current consumption,,, (ie... ap15001,,,, 100 amps is max pull, so 100 amp fuse should be used for this amp ALONE... can do a 120 if 100 not available at the time,,,)
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Old 10-18-2010, 06:35 PM
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Quote:
Originally Posted by kn0wledge000 View Post
what this thread has alil misleading info... umm lets start here by saying,,,, use rated fused to match the rating for the amps max current consumption,,, (ie... ap15001,,,, 100 amps is max pull, so 100 amp fuse should be used for this amp ALONE... can do a 120 if 100 not available at the time,,,)
For the distribution block I will be using fuses matched to the amp

DSC1500.1 (70AX2) 150a fuse
ONX 4.80 (25x2) 60A fuse

For the inline fuse holder I'll be using 250-300a fuse

Right/wrong? I'm on the phone with sonicelectronics about to place my order
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Old 10-18-2010, 06:37 PM
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250 is reasonable for the inline. Looks like your set
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