/awg — Wire Gauge (AWG)
Diameter, cross-section and copper resistance for an American Wire Gauge size, plus a rough ampacity guide and the voltage drop over a run.
AWG 12
Copper at 20 °C (ρ = 1.724×10⁻⁸ Ω·m). Ampacity is a conservative guide only — derate for bundling, insulation and temperature.