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Wrong wire sizes?


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radarcontact 
Copper - Posts: 54
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Joined: June 16, 2009
Location: Florida, United States
Posted: August 10, 2015 at 7:51 AM / IP Logged Link to Post Post Reply Quote radarcontact
Instead of describing my situation, can someone who knows this stuff just hook me up with an answer?
I have two amps,
MB Quart new age class-d Reference RA1500.1 (fused 2x60a)
MB Quart old school a/b NANO NSC475 (fused 2x30a for 4ohms)
I want to rerun my wiring to them as such:
One power and one ground to fused distro boxes, then branched to each amp.
QUESTION: what sized wires and fuses? (I also have the main battery fuse within a foot of the battery)
My manuals talk about cross-sections of the diameter of the wires vs ga recommendations.
Thanks!
Radar
RadarContact
DYohn 
Moderator - Posts: 10,741
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Joined: April 22, 2003
Location: Arizona, United States
Posted: August 17, 2015 at 12:44 PM / IP Logged Link to Post Post Reply Quote DYohn
2 X 60 = 120 amps. 2 x 30 = 60 amps. 120 + 60 = 180. Main power for 180 amps = 2 AWG.
https://www.the12volt.com/wiring/recwirsz.asp
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