Two 4 gauge for One 0 gauge

[Rocky213 10+ year member]

if my amp takes 0 gauge power and ground and most fused distro blocks only put out 4 gauge can i put two 4 gauge wires in my 0 gauge inputs on my amp and have two different fuses for the power obviously

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[keep_hope_alive Premium Member]

you expect to cram two 4awg wires into one opening safely?

if you only have one amp you don't need a distro block. just a fuse at the battery and 0 awg into the amp.

if you are splitting off the 0 awg to power a speaker amp, then you can use the 0 awg in and out on the distro block. you don't need to fuse the same size wire twice (unless it's connecting batteries). you only need to fuse again when you reduce wire size.

just run 0 awg into the amp.

 

[Rocky213 10+ year member]

yea they fit..i have two amps one takes 0 the other one 4 and i have two powers going into my distro block 0 gauge from the front battery and the 0 gauge from the back battery

 

[keep_hope_alive Premium Member]

does your distro have three 0awg in?

you can do it and it will work, just properly size the fuses for 4awg, so between 125-150A depending on the quality of 4awg.

i would have 0 awg from the front battery to the rear battery, fused on both ends. then 0 awg from the rear battery to the distro block, fused at the rear battery. then out of the distro into the large amp with 0 awg, and out of the distro with fused 4 awg to the other amp.

you should have a volt meter at the dash that monitors the rear battery voltage.

 

[Rocky213 10+ year member]

my fused distro has three 0awg in and four 4awg out..my front battery (kinetik1800) goes through a 250 amp fuse holder and then a 200amp (PAC) battery isolator then goes to the distro block..you think i should get rid of the isolator but my rear battery is a different model kinetik 2400..and my ground distro block has two 0awg and three 4awg ..i have a ground from the chassis going in it (0awg) and the neg from the rear battery (0awg) and two of the 4awg out going into one amp and the other 4awg going to the mid highs amp

 

[Rocky213 10+ year member]

Does that sound any good?..and how do i hook up the volt meter to the rear battery..

 

[VWBobby 10+ year member]

Keep your isolator. It will help keep both batteries charging evenly and prevent one battery from draining the other. If you have your amp close enough to the distroblock then you don't need to run 0 gauge. The longer the run, the lower the gauge. Lets say you're trying to move 200 amps. At 10-15 feet you're definitely going to need 0 gauge for best efficiency. When you get down to 2-3 feet, 2 gauge, maybe 4 gauge if you're only running 1 foot or less.

 

[VWBobby 10+ year member]

The charts and calculator on this page will help give you a better idea of what you can get away with

American Wire Gauge table and AWG Electrical Current Load Limits with skin depth frequencies

Follow the chart for "chassis wiring" unless you run both ground and positive runs through your whole vehicle(not needed).

 

[Rocky213 10+ year member]

thanks bud