475 Amp Cable Size at 350 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 350 m (1148.3 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 20.54V (2.98%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 25.41V (3.68%)
Voltage at Load669.5 VLine Loss: 16899.3 W
Max Power & Breaker567.68 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 350m
| 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 | 4108.14 V (595.38%) | 0.0 V | 6776.5 V (982.1%) | 3379862.5 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2464.88 V (357.23%) | 0.0 V | 4065.9 V (589.26%) | 2027917.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 1540.55 V (223.27%) | 0.0 V | 2541.19 V (368.29%) | 1267448.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 1027.03 V (148.85%) | 0.0 V | 1694.13 V (245.53%) | 844965.6 W | Drop High |
| 10 mm² | 57 A | 44 A | 616.22 V (89.31%) | 73.8 V | 1016.48 V (147.32%) | 506979.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 385.14 V (55.82%) | 304.9 V | 635.3 V (92.07%) | 316862.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 246.49 V (35.72%) | 443.5 V | 406.59 V (58.93%) | 202791.7 W | Drop High |
| 35 mm² | 125 A | 97 A | 176.06 V (25.52%) | 513.9 V | 290.42 V (42.09%) | 144851.2 W | Drop High |
| 50 mm² | 151 A | 118 A | 123.24 V (17.86%) | 566.8 V | 203.3 V (29.46%) | 101395.9 W | Drop High |
| 70 mm² | 192 A | 150 A | 88.03 V (12.76%) | 602.0 V | 145.21 V (21.05%) | 72425.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 64.87 V (9.4%) | 625.1 V | 107.0 V (15.51%) | 53366.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 51.35 V (7.44%) | 638.6 V | 84.71 V (12.28%) | 42248.3 W | Drop High |
| 150 mm² | 309 A | 241 A | 41.08 V (5.95%) | 648.9 V | 67.77 V (9.82%) | 33798.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 33.31 V (4.83%) | 656.7 V | 54.94 V (7.96%) | 27404.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 25.68 V (3.72%) | 664.3 V | 42.35 V (6.14%) | 21124.1 W | Drop High |
| 300 mm² | 477 A | 372 A | 20.54 V (2.98%) | 669.5 V | 33.88 V (4.91%) | 16899.3 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 15.41 V (2.23%) | 674.6 V | 25.41 V (3.68%) | 12674.5 W | ✓ OK (≤3%) |
FAQ — 475 Amp Cable Size at 350 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 475A at 350 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 350m at 690V (voltage drop: 20.54V or 2.98%).
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 · 350m (690V)16A · 350m (690V)20A · 350m (690V)25A · 350m (690V)32A · 350m (690V)40A · 350m (690V)50A · 350m (690V)63A · 350m (690V)80A · 350m (690V)100A · 350m (690V)125A · 350m (690V)160A · 350m (690V)200A · 350m (690V)