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Proper Fuse Rating


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mohpro 
Member - Posts: 33
Member spacespace
Joined: October 30, 2014
Location: Maine, United States
Posted: March 10, 2016 at 12:57 PM / IP Logged Link to Post Post Reply Quote mohpro
I have two NVX JAD 1200.1 amplifiers and one NVX JAD 800.4 amplifier. The 1200.1s each have three 40 amp fuses for a total of 120 amps each.so the combined total fuse rating for the two 1200.1s is 240amps. The 800.1 has three 25 amp fuses for a total of 75 amps.The total combined fuse rating between all 3 amplifiers is 315amps. I will have one run of 1/0 from the primary battery to the secondary battery in the trunk. The power wires from all three amplifiers will be connected to the secondary battery. Given this info, is the following correct for fuse ratings and placement:
Power wire from primary battery to secondary battery: 300A
Power wires from the two 1200.1s to the secondary battery: 120/125A for each wire.
Power wire from the 800.4 amp to the secondary battery: 75/80A
Power wire from the alternator (mechman 270A) to the primary battery: 300A
DYohn 
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Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: March 10, 2016 at 1:56 PM / IP Logged Link to Post Post Reply Quote DYohn

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