400 Amp Cable Size at 80 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 400 A over 80 m (262.5 ft).
Copper Cable (≤3% Drop)240 mm²Drop: 5.71V (2.48%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 5.65V (2.46%)
Voltage at Load224.3 VLine Loss: 2282.7 W
Max Power & Breaker92.0 kW400A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 400A at 80m
| Cross-Section (mm²) | Cu Ampacity | Al Ampacity | Cu Voltage Drop | Load Voltage | Al Voltage Drop | Power Loss | Status |
|---|---|---|---|---|---|---|---|
| 1.5 mm² | 16 A | 12 A | 913.07 V (396.99%) | 0.0 V | 1506.13 V (654.84%) | 365226.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 547.84 V (238.19%) | 0.0 V | 903.68 V (392.9%) | 219136.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 342.4 V (148.87%) | 0.0 V | 564.8 V (245.57%) | 136960.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 228.27 V (99.25%) | 1.7 V | 376.53 V (163.71%) | 91306.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 136.96 V (59.55%) | 93.0 V | 225.92 V (98.23%) | 54784.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 85.6 V (37.22%) | 144.4 V | 141.2 V (61.39%) | 34240.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 54.78 V (23.82%) | 175.2 V | 90.37 V (39.29%) | 21913.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 39.13 V (17.01%) | 190.9 V | 64.55 V (28.06%) | 15652.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 27.39 V (11.91%) | 202.6 V | 45.18 V (19.65%) | 10956.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 19.57 V (8.51%) | 210.4 V | 32.27 V (14.03%) | 7826.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 14.42 V (6.27%) | 215.6 V | 23.78 V (10.34%) | 5766.7 W | Drop High |
| 120 mm² | 269 A | 210 A | 11.41 V (4.96%) | 218.6 V | 18.83 V (8.19%) | 4565.3 W | Drop High |
| 150 mm² | 309 A | 241 A | 9.13 V (3.97%) | 220.9 V | 15.06 V (6.55%) | 3652.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 7.4 V (3.22%) | 222.6 V | 12.21 V (5.31%) | 2961.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 5.71 V (2.48%) | 224.3 V | 9.41 V (4.09%) | 2282.7 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 4.57 V (1.98%) | 225.4 V | 7.53 V (3.27%) | 1826.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 3.42 V (1.49%) | 226.6 V | 5.65 V (2.46%) | 1369.6 W | ✓ OK (≤3%) |
FAQ — 400 Amp Cable Size at 80 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 400A at 80 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 400A over 80m at 230V (voltage drop: 5.71V or 2.48%).
What is the power capacity of 400A at 230V?
At unity power factor, 400A at 230V supports 92.0 kW with a standard 400A circuit breaker.
Related Lengths & Currents (230V)
400A · 5m (230V)400A · 10m (230V)400A · 15m (230V)400A · 20m (230V)400A · 25m (230V)400A · 30m (230V)400A · 35m (230V)400A · 40m (230V)400A · 45m (230V)400A · 50m (230V)400A · 60m (230V)400A · 70m (230V)10A · 80m (230V)16A · 80m (230V)20A · 80m (230V)25A · 80m (230V)32A · 80m (230V)40A · 80m (230V)50A · 80m (230V)63A · 80m (230V)80A · 80m (230V)100A · 80m (230V)125A · 80m (230V)160A · 80m (230V)200A · 80m (230V)