EngiRef / Wire Gauge
21 AWG
21 AWG copper conductor: 0.723 mm diameter, 0.411 mm² cross-section. DC resistance 42 Ω per km at 20 °C. Free AWG wire gauge reference - current figures are…
Specification
- Gauge (AWG)
- 21
- Diameter (mm)
- 0.723
- Cross-sectional area (mm²)
- 0.411
- Resistance (Ω/km)
- 42
- Chassis wiring current (A, indicative)
- 1.2
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.