750 Amp Cable Size at 70 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 750 A over 70 m (229.7 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 2.81V (1.22%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 9.27V (4.03%)
Voltage at Load227.2 VLine Loss: 2106.6 W
Max Power & Breaker172.5 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 750A at 70m
| 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 | 1498.0 V (651.3%) | 0.0 V | 2471.0 V (1074.35%) | 1123500.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 898.8 V (390.78%) | 0.0 V | 1482.6 V (644.61%) | 674100.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 561.75 V (244.24%) | 0.0 V | 926.62 V (402.88%) | 421312.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 374.5 V (162.83%) | 0.0 V | 617.75 V (268.59%) | 280875.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 224.7 V (97.7%) | 5.3 V | 370.65 V (161.15%) | 168525.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 140.44 V (61.06%) | 89.6 V | 231.66 V (100.72%) | 105328.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 89.88 V (39.08%) | 140.1 V | 148.26 V (64.46%) | 67410.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 64.2 V (27.91%) | 165.8 V | 105.9 V (46.04%) | 48150.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 44.94 V (19.54%) | 185.1 V | 74.13 V (32.23%) | 33705.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 32.1 V (13.96%) | 197.9 V | 52.95 V (23.02%) | 24075.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 23.65 V (10.28%) | 206.3 V | 39.02 V (16.96%) | 17739.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 18.73 V (8.14%) | 211.3 V | 30.89 V (13.43%) | 14043.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 14.98 V (6.51%) | 215.0 V | 24.71 V (10.74%) | 11235.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 12.15 V (5.28%) | 217.9 V | 20.04 V (8.71%) | 9109.5 W | Drop High |
| 240 mm² | 415 A | 324 A | 9.36 V (4.07%) | 220.6 V | 15.44 V (6.71%) | 7021.9 W | Drop High |
| 300 mm² | 477 A | 372 A | 7.49 V (3.26%) | 222.5 V | 12.36 V (5.37%) | 5617.5 W | Drop High |
| 400 mm² | 570 A | 445 A | 5.62 V (2.44%) | 224.4 V | 9.27 V (4.03%) | 4213.1 W | Drop High |
FAQ — 750 Amp Cable Size at 70 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 750A at 70 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 750A over 70m at 230V (voltage drop: 2.81V or 1.22%).
What is the power capacity of 750A at 230V?
At unity power factor, 750A at 230V supports 172.5 kW with a standard 800A circuit breaker.
Related Lengths & Currents (230V)
750A · 5m (230V)750A · 10m (230V)750A · 15m (230V)750A · 20m (230V)750A · 25m (230V)750A · 30m (230V)750A · 35m (230V)750A · 40m (230V)750A · 45m (230V)750A · 50m (230V)750A · 60m (230V)10A · 70m (230V)16A · 70m (230V)20A · 70m (230V)25A · 70m (230V)32A · 70m (230V)40A · 70m (230V)50A · 70m (230V)63A · 70m (230V)80A · 70m (230V)100A · 70m (230V)125A · 70m (230V)160A · 70m (230V)200A · 70m (230V)