EngiRef / Wire Gauge

20 AWG

20 AWG copper conductor: 0.812 mm diameter, 0.518 mm² cross-section. DC resistance 33.31 Ω per km at 20 °C. Free AWG wire gauge reference - current figures are…

Specification

Gauge (AWG)
20
Diameter (mm)
0.812
Cross-sectional area (mm²)
0.518
Resistance (Ω/km)
33.31
Chassis wiring current (A, indicative)
1.5
Transmission current (A, indicative)
1.5

Current columns are indicative chart values only. They are not NEC 310.16 ampacities and carry no conductor temperature rating, insulation type, ambient correction or bundling adjustment - size conductors from NEC 310.16 or your local code.