475 Amp Cable Size at 250 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 475 A over 250 m (820.2 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 6.36V (2.76%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 20.96V (9.11%)
Voltage at Load223.6 VLine Loss: 3017.8 W
Max Power & Breaker109.25 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 250m
| 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 | 3388.33 V (1473.19%) | 0.0 V | 5589.17 V (2430.07%) | 1609458.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2033.0 V (883.91%) | 0.0 V | 3353.5 V (1458.04%) | 965675.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1270.62 V (552.45%) | 0.0 V | 2095.94 V (911.28%) | 603546.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 847.08 V (368.3%) | 0.0 V | 1397.29 V (607.52%) | 402364.6 W | Drop High |
| 10 mm² | 57 A | 44 A | 508.25 V (220.98%) | 0.0 V | 838.38 V (364.51%) | 241418.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 317.66 V (138.11%) | 0.0 V | 523.98 V (227.82%) | 150886.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 203.3 V (88.39%) | 26.7 V | 335.35 V (145.8%) | 96567.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 145.21 V (63.14%) | 84.8 V | 239.54 V (104.15%) | 68976.8 W | Drop High |
| 50 mm² | 151 A | 118 A | 101.65 V (44.2%) | 128.4 V | 167.67 V (72.9%) | 48283.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 72.61 V (31.57%) | 157.4 V | 119.77 V (52.07%) | 34488.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 53.5 V (23.26%) | 176.5 V | 88.25 V (38.37%) | 25412.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 42.35 V (18.41%) | 187.6 V | 69.86 V (30.38%) | 20118.2 W | Drop High |
| 150 mm² | 309 A | 241 A | 33.88 V (14.73%) | 196.1 V | 55.89 V (24.3%) | 16094.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 27.47 V (11.94%) | 202.5 V | 45.32 V (19.7%) | 13049.7 W | Drop High |
| 240 mm² | 415 A | 324 A | 21.18 V (9.21%) | 208.8 V | 34.93 V (15.19%) | 10059.1 W | Drop High |
| 300 mm² | 477 A | 372 A | 16.94 V (7.37%) | 213.1 V | 27.95 V (12.15%) | 8047.3 W | Drop High |
| 400 mm² | 570 A | 445 A | 12.71 V (5.52%) | 217.3 V | 20.96 V (9.11%) | 6035.5 W | Drop High |
FAQ — 475 Amp Cable Size at 250 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 475A at 250 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 475A over 250m at 230V (voltage drop: 6.36V or 2.76%).
What is the power capacity of 475A at 230V?
At unity power factor, 475A at 230V supports 109.25 kW with a standard 500A circuit breaker.
Related Lengths & Currents (230V)
475A · 5m (230V)475A · 10m (230V)475A · 15m (230V)475A · 20m (230V)475A · 25m (230V)475A · 30m (230V)475A · 35m (230V)475A · 40m (230V)475A · 45m (230V)475A · 50m (230V)475A · 60m (230V)475A · 70m (230V)10A · 250m (230V)16A · 250m (230V)20A · 250m (230V)25A · 250m (230V)32A · 250m (230V)40A · 250m (230V)50A · 250m (230V)63A · 250m (230V)80A · 250m (230V)100A · 250m (230V)125A · 250m (230V)160A · 250m (230V)200A · 250m (230V)