confusion over the amp fuse

[ubergolf97]

i'm installing a zed audio gladius. it has no internal use, but they include an inline fuse. it's a 25 watt inline fuse with what looks like 12 gauge wire connected to it.

i'm running 4 gauge power and grounds from a previous amp setup. the positive side has a 60 amp fuse at the battery that came with the amp wiring kit.

am i supposed to connect the 4 gauge wire to the 12 gauge wire for the fuse and then connect it to the amp? because that doesn't make sense to me at all.

a little insight on this would help a lot, i really wanna get this thing up and running tonite, i haven't had music in my car in over a month.

Click to read more...

 

[luvinthebass 5,000+ posts]

i'm installing a zed audio gladius. it has no internal fuse, but they include an inline fuse. it's a 25 watt inline fuse with what looks like 12 gauge wire connected to it.
i'm running 4 gauge power and grounds from a previous amp setup. the positive side has a 60 amp fuse at the battery that came with the amp wiring kit.

am i supposed to connect the 4 gauge wire to the 12 gauge wire for the fuse and then connect it to the amp? because that doesn't make sense to me at all.

a little insight on this would help a lot, i really wanna get this thing up and running tonite, i haven't had music in my car in over a month.

wth did you just say?

 

[Rich B 5,000+ posts]

Current Consumption with Sinewave at 4 ohms 20A

Current Consumption with Music at 4 ohms 6A

Fuse rating with 4 ohm load/channel 25A

Fuse rating with 2 ohm load/channel **** 35A

http://www.zedaudio.com/Products/Gladius-Spec.htm

 

[ubergolf97]

so is that a yes? i'm about to try it, and don't want to mess up the amp.

if i do this, then what is the point of the power connection being able to handle 4 gauge wire when they include an inline fuse with a smaller wire?

 

[Rich B 5,000+ posts]

Its simple.

Use a 25a fuse with a 4ga inline fuseholder.

I wouldnt even mess with the holder they supplied.

Im installing an older Zed made amp that takes a 60a fuse, and thats how Im doing it.

 

[ubergolf97]

ok, well the battery is in the trunk, the power and ground wires are connected directly to the battery. the runs of wire are about 3 feet long to get to the amp, can i get away with putting a 25 amp fuse in place of the 60 amp fuse? i see no problem with it, but i wanna double check in case there is something i don't know about and need the 60 amp fuse there for some reason.

i just don't see the point of having 2 fuses on the same wire, when the lower valued fuse will always blow first.

 

[phyphoestilic 5,000+ posts]

The first fuse on the wire (closest to the battery) is to protect the wire/battery incase the wires inside touches metal. Having a 2nd fuse (ie the smaller 25amp fuse) would not be a problem, like u said. if anything the 25amp fuse will pop. But that's only if they amp draws more current then say around 30-40amps (fuses can usually hold more then they are rated for, for a few secs/mins). But either way, the amp isn't suppose to draw more then 25-35 amps anyways, even on full blast.

So if i were u, i'd just do the double fuse on 1 wire.

 

[phyphoestilic 5,000+ posts]

Also, i think they provided a 12AWG power wire because the 12AWG is able to support up to 41amps of power transfer. Which is more then the amp is suppose to draw. Only thing is I'd expect the wire isn't very long? Because I'm pretty sure they'd expected u to use the 12AWG after a distribution block.

 

[helotaxi 5,000+ posts]

The second fuse is totally unneeded. Toss the supplied fuse holder in your parts bin, you might find a use for it later. Just use the fuse holder that you already have and install a 25A or smaller fuse.

 

[wesl56 10+ year member]

//content.invisioncic.com/y282845/emoticons/word.gif.64b12e39f936af3b4fff38a1c0bd0244.gif and call it a day //content.invisioncic.com/y282845/emoticons/cool.gif.3bcaf8f141236c00f8044d07150e34f7.gif