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Message: <blockquote data-quote="n2audio" data-source="post: 1433673" data-attributes="member: 540940">To add to what helotaxi said...The point is with larger wire up front you'd typically have a much larger fuse - Let's say 250A for example --It's possible (unlikely, but possible) that the smaller wire coming out of the d-block could be shorted, but it may not be pulling enough current to blow the 250A fuse, at least not immediately, and could get hot enough to be dangerous.With the appropriate sized fuse in the block - if that smaller wire touches ground the fuse at the block would blow very quickly.Since you have a 4 ga sized fuse up front it should be sufficient to protect the smaller wires.</blockquote>

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