800 Amp Cable Size at 80 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 800 A over 80 m (262.5 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 2.96V (0.74%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 9.78V (2.45%)
Voltage at Load397.0 VLine Loss: 4108.8 W
Max Power & Breaker554.26 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 800A 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 | 1581.48 V (395.37%) | 0.0 V | 2608.7 V (652.17%) | 2191360.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 948.89 V (237.22%) | 0.0 V | 1565.22 V (391.3%) | 1314816.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 593.05 V (148.26%) | 0.0 V | 978.26 V (244.57%) | 821760.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 395.37 V (98.84%) | 4.6 V | 652.17 V (163.04%) | 547840.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 237.22 V (59.31%) | 162.8 V | 391.3 V (97.83%) | 328704.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 148.26 V (37.07%) | 251.7 V | 244.57 V (61.14%) | 205440.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 94.89 V (23.72%) | 305.1 V | 156.52 V (39.13%) | 131481.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 67.78 V (16.94%) | 332.2 V | 111.8 V (27.95%) | 93915.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 47.44 V (11.86%) | 352.6 V | 78.26 V (19.57%) | 65740.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 33.89 V (8.47%) | 366.1 V | 55.9 V (13.98%) | 46957.7 W | Drop High |
| 95 mm² | 232 A | 181 A | 24.97 V (6.24%) | 375.0 V | 41.19 V (10.3%) | 34600.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 19.77 V (4.94%) | 380.2 V | 32.61 V (8.15%) | 27392.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 15.81 V (3.95%) | 384.2 V | 26.09 V (6.52%) | 21913.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 12.82 V (3.21%) | 387.2 V | 21.15 V (5.29%) | 17767.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 9.88 V (2.47%) | 390.1 V | 16.3 V (4.08%) | 13696.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 7.91 V (1.98%) | 392.1 V | 13.04 V (3.26%) | 10956.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 5.93 V (1.48%) | 394.1 V | 9.78 V (2.45%) | 8217.6 W | Drop High |
FAQ — 800 Amp Cable Size at 80 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 800A at 80 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 800A over 80m at 400V (voltage drop: 2.96V or 0.74%).
What is the power capacity of 800A at 400V?
At unity power factor, 800A at 400V supports 554.26 kW with a standard 800A circuit breaker.
Related Lengths & Currents (400V)
800A · 5m (400V)800A · 10m (400V)800A · 15m (400V)800A · 20m (400V)800A · 25m (400V)800A · 30m (400V)800A · 35m (400V)800A · 40m (400V)800A · 45m (400V)800A · 50m (400V)800A · 60m (400V)800A · 70m (400V)10A · 80m (400V)16A · 80m (400V)20A · 80m (400V)25A · 80m (400V)32A · 80m (400V)40A · 80m (400V)50A · 80m (400V)63A · 80m (400V)80A · 80m (400V)100A · 80m (400V)125A · 80m (400V)160A · 80m (400V)200A · 80m (400V)