475 Amp Cable Size at 100 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 475 A over 100 m (328.1 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 5.87V (0.85%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 7.26V (1.05%)
Voltage at Load684.1 VLine Loss: 4828.4 W
Max Power & Breaker567.68 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 100m
| 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 | 1173.75 V (170.11%) | 0.0 V | 1936.14 V (280.6%) | 965675.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 704.25 V (102.07%) | 0.0 V | 1161.69 V (168.36%) | 579405.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 440.16 V (63.79%) | 249.8 V | 726.05 V (105.23%) | 362128.1 W | Drop High |
| 6 mm² | 41 A | 32 A | 293.44 V (42.53%) | 396.6 V | 484.04 V (70.15%) | 241418.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 176.06 V (25.52%) | 513.9 V | 290.42 V (42.09%) | 144851.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 110.04 V (15.95%) | 580.0 V | 181.51 V (26.31%) | 90532.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 70.43 V (10.21%) | 619.6 V | 116.17 V (16.84%) | 57940.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 50.3 V (7.29%) | 639.7 V | 82.98 V (12.03%) | 41386.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 35.21 V (5.1%) | 654.8 V | 58.08 V (8.42%) | 28970.2 W | Drop High |
| 70 mm² | 192 A | 150 A | 25.15 V (3.65%) | 664.8 V | 41.49 V (6.01%) | 20693.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 18.53 V (2.69%) | 671.5 V | 30.57 V (4.43%) | 15247.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 14.67 V (2.13%) | 675.3 V | 24.2 V (3.51%) | 12070.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 11.74 V (1.7%) | 678.3 V | 19.36 V (2.81%) | 9656.8 W | Drop High |
| 185 mm² | 353 A | 275 A | 9.52 V (1.38%) | 680.5 V | 15.7 V (2.28%) | 7829.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 7.34 V (1.06%) | 682.7 V | 12.1 V (1.75%) | 6035.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 5.87 V (0.85%) | 684.1 V | 9.68 V (1.4%) | 4828.4 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 4.4 V (0.64%) | 685.6 V | 7.26 V (1.05%) | 3621.3 W | ✓ OK (≤3%) |
FAQ — 475 Amp Cable Size at 100 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 475A at 100 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 475A over 100m at 690V (voltage drop: 5.87V or 0.85%).
What is the power capacity of 475A at 690V?
At unity power factor, 475A at 690V supports 567.68 kW with a standard 500A circuit breaker.
Related Lengths & Currents (690V)
475A · 5m (690V)475A · 10m (690V)475A · 15m (690V)475A · 20m (690V)475A · 25m (690V)475A · 30m (690V)475A · 35m (690V)475A · 40m (690V)475A · 45m (690V)475A · 50m (690V)475A · 60m (690V)475A · 70m (690V)10A · 100m (690V)16A · 100m (690V)20A · 100m (690V)25A · 100m (690V)32A · 100m (690V)40A · 100m (690V)50A · 100m (690V)63A · 100m (690V)80A · 100m (690V)100A · 100m (690V)125A · 100m (690V)160A · 100m (690V)200A · 100m (690V)