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this is bad right?


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so i was installing a volt gauge today to see what I actually drop to and noticed my positive block had done this:

20170506_130512.jpg

What would be a cause of this?  my thoughts are pulling too much amperage combined with maybe shitty fuses?  the power out that has melted is going to my sub amp.  all grounds are good (and in the distro block partially in frame at the bottom right).  the melted terminal is now leaning against the output terminal to my 4 channel.  looks like a trip to the smd store is in my future for a new fuse block :/  should i not have gone with the mini fuse style?

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Too much amperage for the ampacity of the wire/resistance from a loose connection. If that block that shifted is/was able to wiggle, and made contact with the other block it would have allowed the amp to pull more amperage from both blocks instead of just the one.

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What redal said, bad connection. This is the problem with the set screw terminals. If the wire doesn't fill the hole, the set screw doesn't have much to clamp on to. Instead it pushes the strands to either side and only clamps a little bit of them. This is why the SMD style is so popular because you crimp a lug on the wire, which clamps all the strands. Then it is bolted to the fuse. Best and strongest connection available. Don't cheap out or you will burn your car down.

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Just now, ShadeTreeMechanic said:

What redal said, bad connection. This is the problem with the set screw terminals. If the wire doesn't fill the hole, the set screw doesn't have much to clamp on to. Instead it pushes the strands to either side and only clamps a little bit of them. This is why the SMD style is so popular because you crimp a lug on the wire, which clamps all the strands. Then it is bolted to the fuse. Best and strongest connection available. Don't cheap out or you will burn your car down.

yeah i guess this is where i finally start putting on my big boy pants.  is the smd fuse block the only one on the market?  im in need of suggestions

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