NEC 210.16 Table For Copper Wire Ampacities (1st Chart) Copper Wire Size (AWG or kcmil): Ampacity At 60°C (140°F): Ampacity At 75°C (167°F): Ampacity 90°C (194°F): 18 AWG Copper Wire – – 14 Amps 16 AWG Copper Wire – – 18 Amps 14 AWG Copper Wire 15 Amps 20 Amps...