Wire capability?

[snoop3111 10+ year member]

I have a total of 2400 wrms and 193ah with a xs d3400 under the hood and a khc2400 in the trunk. Im fused at 250, all 1/0. Big three is also done. Im pushing 2 sa-12s with a lanzar opti3201 @ 1 ohm and my infinity's off a boston gt275. Box is a slot port, 4.1ft3 after displacement tuned to 31 hz. Trunk and doors are sound proofed with fatmat.

My real question is that will it be a problem if all of the + power cables are Knu OFC and all of my - cables are Knu CCA? To make up for the difference I ran a ground cable from both batteries but also grounded the one in the trunk to the frame aswell. Will this casue any sort of problem?

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[Silverado SS 10+ year member]

A single run of 0 gauge if true size is good for about 3000-3500 watts max, OFC obviously carries better than CCA

 

[keep_hope_alive Premium Member]

yes, it matters. your grounds are where you amplifiers get power - in DC electricity electrons "flow" from negative to positive. so consider your grounds the most important connection you make (though both are required to complete the circuit).

if you size fuses for OFC and run CCA then you run the risk of melting your CCA wires. they have a lower ampacity (carry less current). if the CCA wires are twice the size as the OFC then you are good.

 

[snoop3111 10+ year member]

the ofc is rated at 375 amps at 20 ft and the cca is rated for 250. the amp says to fuse at 200 which i did between the rear batt and the amp