750 Amp Cable Size at 500 Meters (400V Three-Phase (IEC European Grid))
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 (2.9%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 57.32V (14.33%)
Voltage at Load388.4 VLine Loss: 15046.9 W
Max Power & Breaker519.62 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 (2316.62%) | 0.0 V | 15285.35 V (3821.34%) | 12037500.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 5559.88 V (1389.97%) | 0.0 V | 9171.21 V (2292.8%) | 7222500.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 3474.93 V (868.73%) | 0.0 V | 5732.01 V (1433.0%) | 4514062.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 2316.62 V (579.15%) | 0.0 V | 3821.34 V (955.33%) | 3009375.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1389.97 V (347.49%) | 0.0 V | 2292.8 V (573.2%) | 1805625.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 868.73 V (217.18%) | 0.0 V | 1433.0 V (358.25%) | 1128515.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 555.99 V (139.0%) | 0.0 V | 917.12 V (229.28%) | 722250.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 397.13 V (99.28%) | 2.9 V | 655.09 V (163.77%) | 515892.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 277.99 V (69.5%) | 122.0 V | 458.56 V (114.64%) | 361125.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 198.57 V (49.64%) | 201.4 V | 327.54 V (81.89%) | 257946.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 146.31 V (36.58%) | 253.7 V | 241.35 V (60.34%) | 190065.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 115.83 V (28.96%) | 284.2 V | 191.07 V (47.77%) | 150468.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 92.66 V (23.17%) | 307.3 V | 152.85 V (38.21%) | 120375.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 75.13 V (18.78%) | 324.9 V | 123.94 V (30.98%) | 97601.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 57.92 V (14.48%) | 342.1 V | 95.53 V (23.88%) | 75234.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 46.33 V (11.58%) | 353.7 V | 76.43 V (19.11%) | 60187.5 W | Drop High |
| 400 mm² | 570 A | 445 A | 34.75 V (8.69%) | 365.3 V | 57.32 V (14.33%) | 45140.6 W | Drop High |
FAQ — 750 Amp Cable Size at 500 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 750A at 500 meters (400V)?
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 400V (voltage drop: 11.58V or 2.9%).
What is the power capacity of 750A at 400V?
At unity power factor, 750A at 400V supports 519.62 kW with a standard 800A circuit breaker.
Related Lengths & Currents (400V)
750A · 5m (400V)750A · 10m (400V)750A · 15m (400V)750A · 20m (400V)750A · 25m (400V)750A · 30m (400V)750A · 35m (400V)750A · 40m (400V)750A · 45m (400V)750A · 50m (400V)750A · 60m (400V)750A · 70m (400V)10A · 500m (400V)16A · 500m (400V)20A · 500m (400V)25A · 500m (400V)32A · 500m (400V)40A · 500m (400V)50A · 500m (400V)63A · 500m (400V)80A · 500m (400V)100A · 500m (400V)125A · 500m (400V)160A · 500m (400V)200A · 500m (400V)