375 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 375 A over 70 m (229.7 ft).
Copper Cable (≤3% Drop)240 mm²Drop: 4.68V (2.04%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 4.63V (2.01%)
Voltage at Load225.3 VLine Loss: 1755.5 W
Max Power & Breaker86.25 kW400A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 375A 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 | 749.0 V (325.65%) | 0.0 V | 1235.5 V (537.17%) | 280875.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 449.4 V (195.39%) | 0.0 V | 741.3 V (322.3%) | 168525.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 280.88 V (122.12%) | 0.0 V | 463.31 V (201.44%) | 105328.1 W | Drop High |
| 6 mm² | 41 A | 32 A | 187.25 V (81.41%) | 42.8 V | 308.88 V (134.29%) | 70218.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 112.35 V (48.85%) | 117.7 V | 185.33 V (80.58%) | 42131.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 70.22 V (30.53%) | 159.8 V | 115.83 V (50.36%) | 26332.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 44.94 V (19.54%) | 185.1 V | 74.13 V (32.23%) | 16852.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 32.1 V (13.96%) | 197.9 V | 52.95 V (23.02%) | 12037.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 22.47 V (9.77%) | 207.5 V | 37.06 V (16.12%) | 8426.2 W | Drop High |
| 70 mm² | 192 A | 150 A | 16.05 V (6.98%) | 213.9 V | 26.47 V (11.51%) | 6018.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 11.83 V (5.14%) | 218.2 V | 19.51 V (8.48%) | 4434.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 9.36 V (4.07%) | 220.6 V | 15.44 V (6.71%) | 3510.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 7.49 V (3.26%) | 222.5 V | 12.36 V (5.37%) | 2808.8 W | Drop High |
| 185 mm² | 353 A | 275 A | 6.07 V (2.64%) | 223.9 V | 10.02 V (4.36%) | 2277.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 4.68 V (2.04%) | 225.3 V | 7.72 V (3.36%) | 1755.5 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 3.74 V (1.63%) | 226.3 V | 6.18 V (2.69%) | 1404.4 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 2.81 V (1.22%) | 227.2 V | 4.63 V (2.01%) | 1053.3 W | ✓ OK (≤3%) |
FAQ — 375 Amp Cable Size at 70 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 375A at 70 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 375A over 70m at 230V (voltage drop: 4.68V or 2.04%).
What is the power capacity of 375A at 230V?
At unity power factor, 375A at 230V supports 86.25 kW with a standard 400A circuit breaker.
Related Lengths & Currents (230V)
375A · 5m (230V)375A · 10m (230V)375A · 15m (230V)375A · 20m (230V)375A · 25m (230V)375A · 30m (230V)375A · 35m (230V)375A · 40m (230V)375A · 45m (230V)375A · 50m (230V)375A · 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)