750 Amp Cable Size at 500 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 750 A over 500 m (1640.4 ft).
Copper Cable (≤3% Drop)3× 400 mm²Drop: 11.58V (2.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 57.32V (13.81%)
Voltage at Load403.4 VLine Loss: 15046.9 W
Max Power & Breaker539.1 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 750A at 500m
| 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 | 9266.47 V (2232.88%) | 0.0 V | 15285.35 V (3683.22%) | 12037500.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 5559.88 V (1339.73%) | 0.0 V | 9171.21 V (2209.93%) | 7222500.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 3474.93 V (837.33%) | 0.0 V | 5732.01 V (1381.21%) | 4514062.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 2316.62 V (558.22%) | 0.0 V | 3821.34 V (920.8%) | 3009375.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1389.97 V (334.93%) | 0.0 V | 2292.8 V (552.48%) | 1805625.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 868.73 V (209.33%) | 0.0 V | 1433.0 V (345.3%) | 1128515.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 555.99 V (133.97%) | 0.0 V | 917.12 V (220.99%) | 722250.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 397.13 V (95.7%) | 17.9 V | 655.09 V (157.85%) | 515892.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 277.99 V (66.99%) | 137.0 V | 458.56 V (110.5%) | 361125.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 198.57 V (47.85%) | 216.4 V | 327.54 V (78.93%) | 257946.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 146.31 V (35.26%) | 268.7 V | 241.35 V (58.16%) | 190065.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 115.83 V (27.91%) | 299.2 V | 191.07 V (46.04%) | 150468.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 92.66 V (22.33%) | 322.3 V | 152.85 V (36.83%) | 120375.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 75.13 V (18.1%) | 339.9 V | 123.94 V (29.86%) | 97601.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 57.92 V (13.96%) | 357.1 V | 95.53 V (23.02%) | 75234.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 46.33 V (11.16%) | 368.7 V | 76.43 V (18.42%) | 60187.5 W | Drop High |
| 400 mm² | 570 A | 445 A | 34.75 V (8.37%) | 380.3 V | 57.32 V (13.81%) | 45140.6 W | Drop High |
FAQ — 750 Amp Cable Size at 500 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 750A at 500 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 3× 400 mm² copper cable for 750A over 500m at 415V (voltage drop: 11.58V or 2.79%).
What is the power capacity of 750A at 415V?
At unity power factor, 750A at 415V supports 539.1 kW with a standard 800A circuit breaker.
Related Lengths & Currents (415V)
750A · 5m (415V)750A · 10m (415V)750A · 15m (415V)750A · 20m (415V)750A · 25m (415V)750A · 30m (415V)750A · 35m (415V)750A · 40m (415V)750A · 45m (415V)750A · 50m (415V)750A · 60m (415V)750A · 70m (415V)10A · 500m (415V)16A · 500m (415V)20A · 500m (415V)25A · 500m (415V)32A · 500m (415V)40A · 500m (415V)50A · 500m (415V)63A · 500m (415V)80A · 500m (415V)100A · 500m (415V)125A · 500m (415V)160A · 500m (415V)200A · 500m (415V)