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<blockquote data-quote="GCAdidas13" data-source="post: 1027449" data-attributes="member: 557864">Distrobution blocks have an input and however many outputs.&nbsp; If the input wire is larger than the output wire, it should definitely be fused.Example.&nbsp; You have three Diamond D5 amplifiers.&nbsp; 300.2, 300.4, 600.2.&nbsp; Of those amplifiers, lets say you don&#039;t fuse the three wires that come from the distrobution block.&nbsp; I assume you will have a 0 gauge input, and three 4 gauge outputs to that distrobution block.Now, 4 gauge wire is rated for 125amps or so.&nbsp; 0 gauge wire is rated for 350 amps or so.&nbsp; You&#039;ll have one fuse at the battery that is rated ~300 amps.One of your amplifiers craps out on you.&nbsp; It is known that when an amplifier breaks, sometimes it draws a LOT of current due to internals arcing, creating a straight path from the positive terminal of the amplifier to the ground terminal of the amplifier.&nbsp; It pulls a current that is more than the current capacity of the 4 gauge wire, but less than the current capacity of the 0 gauge wire, and you, my friend, have an electrical fire.The ground block does not need to be fused because it is a smaller input wire to a larger output wire.</blockquote>

[QUOTE="GCAdidas13, post: 1027449, member: 557864"] Distrobution blocks have an input and however many outputs. If the input wire is larger than the output wire, it should definitely be fused. Example. You have three Diamond D5 amplifiers. 300.2, 300.4, 600.2. Of those amplifiers, lets say you don't fuse the three wires that come from the distrobution block. I assume you will have a 0 gauge input, and three 4 gauge outputs to that distrobution block. Now, 4 gauge wire is rated for 125amps or so. 0 gauge wire is rated for 350 amps or so. You'll have one fuse at the battery that is rated ~300 amps. One of your amplifiers craps out on you. It is known that when an amplifier breaks, sometimes it draws a LOT of current due to internals arcing, creating a straight path from the positive terminal of the amplifier to the ground terminal of the amplifier. It pulls a current that is more than the current capacity of the 4 gauge wire, but less than the current capacity of the 0 gauge wire, and you, my friend, have an electrical fire. The ground block does not need to be fused because it is a smaller input wire to a larger output wire. [/QUOTE]

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