1/0 max current?

 

Silver Member
Username: Rzarector

Coquitlam, Bc Canada

Post Number: 885
Registered: Dec-04
how much current can 1/0 wire carry for say a 10 foot distance?
 

Silver Member
Username: Theelfkeeper

Stockbridge, GA USA

Post Number: 923
Registered: Feb-05
MECP book says 125-150 amps for 10-13 feet
http://www.the12volt.com/info/recwirsz.asp
the12volt says a little more
 

Unregistered guest
My personal opinion is that it can carry up to around 175 amps. Im running 150 through my 0 gauge stinger pro wire.
 

Silver Member
Username: Rzarector

Coquitlam, Bc Canada

Post Number: 888
Registered: Dec-04
shitty... so what am i to run with a rf 20001bd 250amp fuse rating and an alpine mrv545 80 amp fuse rating
 

Silver Member
Username: Spyder

Eglin AFB, Florida USA

Post Number: 277
Registered: Jun-05
duel strands of wire?
 

Nate So
Unregistered guest
Im assuming you have an upgraded battery and alternator, and that you have a capacitor. If so high quality 0 gauge wire should be fine, but you will have to ground the cap and the rf amp with 0 gauge. you could get away grounding the other amp with 2 gauge if you use 2 gauge for the power of that amp. Make sense??? also use a 325 amp fuse or around that.
 

Silver Member
Username: Rzarector

Coquitlam, Bc Canada

Post Number: 889
Registered: Dec-04
well all the stuff isnt bought yet. but i will have a 250 amp alternator and 1 or 2 yellow tops in the back..i may get a cap, just debating weather its worth another 200 or so.. i researched a little bit and it seems running about 320 amps through 1/0 over 8 ft will give me a 0.9 voltage drop.. the alpine amp is getting 4 gau in and 4 gau ground. with some batteries in the back though i could cut down on the length of power to the amps by more than half.
 

Silver Member
Username: B101

Queen City, NC USA

Post Number: 737
Registered: Sep-05
Natso is correct. In some cases u need 5 strands in competition. Im thinking of runing 2 0ga.
 

Bronze Member
Username: Safe_cracker

Chicago, IL US

Post Number: 18
Registered: Jan-06
Funny thing my manual for my Kicker SX1250.1 say to use 2ga and the included 150amp fuse. Can I get away with two strands of 2ga safely? Polo..
 

NAte SO
Unregistered guest
If possible just use 0 guage to the cap... you technically could run two 2 gauge to the cap... but that would be gey... but if you ran one 2 gauge and one 0 gauge to two seperate caps... that would be sweet...
 

Silver Member
Username: Fandim

Reno, Nevada United State...

Post Number: 684
Registered: Jun-05
heh...everyplace I'm checking says 250+ for 0 gauge wire..
 

Silver Member
Username: Rzarector

Coquitlam, Bc Canada

Post Number: 898
Registered: Dec-04
yeh 150 amps seems rediculously low for 1/0
 

Silver Member
Username: N2audio

Lawrence, Ks USA

Post Number: 504
Registered: Mar-04
at 15' 1/0 can provide 330A before Vdrop reaches 1/2V which is the acceptable maximum.
At 10' you could draw close to 350A through it before you run into any problems.
 

Silver Member
Username: Solacedagony

New Jersey US

Post Number: 788
Registered: Oct-04
The wire gauge and LENGTH of that wire both affect how much current you can reliably run across it.
 

Silver Member
Username: B101

Queen City, NC USA

Post Number: 848
Registered: Sep-05
yea, the longer the wire the more resistance.
But if you were to put a current clamp on that 0ga wire, I belive it dont pass that much current.
I know in competition it is better to run multiple strands, even if the wire is shorter than 10ft!!
 

Silver Member
Username: B101

Queen City, NC USA

Post Number: 849
Registered: Sep-05
like Brandon said the MECP book says 125-150 amps for 10-13 feet!!

How many of you guys are MECP certified? OK
 

Silver Member
Username: N2audio

Lawrence, Ks USA

Post Number: 516
Registered: Mar-04
then mecp's wiring guidelines are ridiculous.

I'd like to know how they came to that conclusion.
 

Silver Member
Username: N2audio

Lawrence, Ks USA

Post Number: 517
Registered: Mar-04
then right below the power/distange chart they show the capacity of 1/0 at 350A.

Which is it?

 

Silver Member
Username: N2audio

Lawrence, Ks USA

Post Number: 518
Registered: Mar-04
uhh, forget that last post - for some reason I thought 12volts charts were mecp's specs.
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