AWG 4/0 Wire
Diameter 0.4600″
Millimeters 11.684 mm
Cross-section 211.6 kcmil
mm² 107.22
Nominal bare-conductor dimensions per ASTM B258. AWG is geometric: d = 0.005 × 92(36−n)/39 in with n = -3; area is derived from the diameter. Ampacity depends on insulation, bundling, and the electrical code in force — it is a property of the installation, not the gauge.
Neighboring gauges
| AWG | Diameter | mm | vs AWG 4/0 |
|---|---|---|---|
| 4/0 | 0.4600″ | 11.684 | — |
| 3/0 | 0.4096″ | 10.404 | −0.0504″ |
| 2/0 | 0.3648″ | 9.266 | −0.0952″ |