Whether you're installing, extending, or rewiring a circuit, finding out the wire gauge and amperage you will need is a key first step. The gauge—or size—of the wire used needs to match the ...

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The only major downside, something that might make it unusable for certain applications, is the wire ... 4.5", a common size, though slightly on the smaller side. Meanwhile, the amperage is ...

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So, what about the middle of the spectrum? A 12-AWG wire is one with a 3.31 mm2 CSA. Wires of this size are customarily used for circuits designed to handle 20-amp loads, such as those found in ...