475 Amp Cable Size at 50 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 50 m (164.0 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 2.93V (0.43%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.63V (0.53%)
Voltage at Load687.1 VLine Loss: 2414.2 W
Max Power & Breaker567.68 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 50m
| 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 | 586.88 V (85.05%) | 103.1 V | 968.07 V (140.3%) | 482837.5 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 352.13 V (51.03%) | 337.9 V | 580.84 V (84.18%) | 289702.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 220.08 V (31.9%) | 469.9 V | 363.03 V (52.61%) | 181064.1 W | Drop High |
| 6 mm² | 41 A | 32 A | 146.72 V (21.26%) | 543.3 V | 242.02 V (35.08%) | 120709.4 W | Drop High |
| 10 mm² | 57 A | 44 A | 88.03 V (12.76%) | 602.0 V | 145.21 V (21.05%) | 72425.6 W | Drop High |
| 16 mm² | 76 A | 59 A | 55.02 V (7.97%) | 635.0 V | 90.76 V (13.15%) | 45266.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 35.21 V (5.1%) | 654.8 V | 58.08 V (8.42%) | 28970.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 25.15 V (3.65%) | 664.8 V | 41.49 V (6.01%) | 20693.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 17.61 V (2.55%) | 672.4 V | 29.04 V (4.21%) | 14485.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 12.58 V (1.82%) | 677.4 V | 20.74 V (3.01%) | 10346.5 W | Drop High |
| 95 mm² | 232 A | 181 A | 9.27 V (1.34%) | 680.7 V | 15.29 V (2.22%) | 7623.7 W | Drop High |
| 120 mm² | 269 A | 210 A | 7.34 V (1.06%) | 682.7 V | 12.1 V (1.75%) | 6035.5 W | Drop High |
| 150 mm² | 309 A | 241 A | 5.87 V (0.85%) | 684.1 V | 9.68 V (1.4%) | 4828.4 W | Drop High |
| 185 mm² | 353 A | 275 A | 4.76 V (0.69%) | 685.2 V | 7.85 V (1.14%) | 3914.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 3.67 V (0.53%) | 686.3 V | 6.05 V (0.88%) | 3017.7 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.93 V (0.43%) | 687.1 V | 4.84 V (0.7%) | 2414.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 2.2 V (0.32%) | 687.8 V | 3.63 V (0.53%) | 1810.6 W | ✓ OK (≤3%) |
FAQ — 475 Amp Cable Size at 50 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 475A at 50 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 50m at 690V (voltage drop: 2.93V or 0.43%).
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 · 60m (690V)475A · 70m (690V)10A · 50m (690V)16A · 50m (690V)20A · 50m (690V)25A · 50m (690V)32A · 50m (690V)40A · 50m (690V)50A · 50m (690V)63A · 50m (690V)80A · 50m (690V)100A · 50m (690V)125A · 50m (690V)160A · 50m (690V)200A · 50m (690V)