Large sub-panels, commercial equipment
| Diameter | 5.1894 mm (0.204307") |
| Area | 21.1506 mm² |
| Resistance at 20°C | 0.8151 Ω/km |
| Weight | 189.51 kg/km |
| Ampacity (75°C) | 70 A |
Important: For long wire runs, you may need to upsize the wire to compensate for voltage drop. NEC recommends keeping voltage drop under 3% for branch circuits. Use our voltage drop calculator to check.