The listing says 12 AWG but I have found previous wire purchases that rounded up the wire gauge instead. This is a true 12AWG with a CMA of 3.0682. There are 58 strands with a diameter of 0.23mm, to be 12 AWG it must be at least 3.05 CMA. For comparison, I have a 12 AWG (white) 19-wire wire alongside this fuse wire. It's well built and the body is made of durable rubber/plastic which will hold the fuse well and should protect it from the elements. I am planning to use this in a car application in the engine bay and am not worried about the fuse blowing.
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