700 Amp Cable Size at 400 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 700 A over 400 m (1312.3 ft).
Copper Cable (≤3% Drop)3× 400 mm²Drop: 8.65V (2.08%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 42.8V (10.31%)
Voltage at Load406.4 VLine Loss: 10486.0 W
Max Power & Breaker503.16 kW700A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 700A at 400m
| 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 | 6918.97 V (1667.22%) | 0.0 V | 11413.06 V (2750.13%) | 8388800.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 4151.38 V (1000.33%) | 0.0 V | 6847.84 V (1650.08%) | 5033280.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2594.61 V (625.21%) | 0.0 V | 4279.9 V (1031.3%) | 3145800.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1729.74 V (416.81%) | 0.0 V | 2853.27 V (687.53%) | 2097200.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1037.84 V (250.08%) | 0.0 V | 1711.96 V (412.52%) | 1258320.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 648.65 V (156.3%) | 0.0 V | 1069.97 V (257.83%) | 786450.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 415.14 V (100.03%) | 0.0 V | 684.78 V (165.01%) | 503328.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 296.53 V (71.45%) | 118.5 V | 489.13 V (117.86%) | 359520.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 207.57 V (50.02%) | 207.4 V | 342.39 V (82.5%) | 251664.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 148.26 V (35.73%) | 266.7 V | 244.57 V (58.93%) | 179760.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 109.25 V (26.32%) | 305.8 V | 180.21 V (43.42%) | 132454.7 W | Drop High |
| 120 mm² | 269 A | 210 A | 86.49 V (20.84%) | 328.5 V | 142.66 V (34.38%) | 104860.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 69.19 V (16.67%) | 345.8 V | 114.13 V (27.5%) | 83888.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 56.1 V (13.52%) | 358.9 V | 92.54 V (22.3%) | 68017.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 43.24 V (10.42%) | 371.8 V | 71.33 V (17.19%) | 52430.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 34.59 V (8.34%) | 380.4 V | 57.07 V (13.75%) | 41944.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 25.95 V (6.25%) | 389.1 V | 42.8 V (10.31%) | 31458.0 W | Drop High |
FAQ — 700 Amp Cable Size at 400 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 700A at 400 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 3× 400 mm² copper cable for 700A over 400m at 415V (voltage drop: 8.65V or 2.08%).
What is the power capacity of 700A at 415V?
At unity power factor, 700A at 415V supports 503.16 kW with a standard 700A circuit breaker.
Related Lengths & Currents (415V)
700A · 5m (415V)700A · 10m (415V)700A · 15m (415V)700A · 20m (415V)700A · 25m (415V)700A · 30m (415V)700A · 35m (415V)700A · 40m (415V)700A · 45m (415V)700A · 50m (415V)700A · 60m (415V)700A · 70m (415V)10A · 400m (415V)16A · 400m (415V)20A · 400m (415V)25A · 400m (415V)32A · 400m (415V)40A · 400m (415V)50A · 400m (415V)63A · 400m (415V)80A · 400m (415V)100A · 400m (415V)125A · 400m (415V)160A · 400m (415V)200A · 400m (415V)