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Re: [A/S] Dodge Ram 7 Pin Connector
For straight fusing considerations, 20 amp requires #12 AWG, 30 amps requires #10.
I'd go at least 1 size larger (#10 or #8 depending on fuse size) to minimize the
voltage drop impact. A volt of drop is 10 times as damaging to a 12 volt circuit as
to a 120 volt circuit, 20 times as to a 240 volt circuit. (All figures based on QDM
(quick and dirty math))
Matt