63 Amp Cable Size at 400 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 63 A over 400 m (1312.3 ft).
Copper Cable (≤3% Drop)50 mm²Drop: 18.68V (2.71%)
Aluminum Cable (≤3% Drop)95 mm²Drop: 16.22V (2.35%)
Voltage at Load671.3 VLine Loss: 2038.5 W
Max Power & Breaker75.29 kW63A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 63A at 400m
| 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 | 622.71 V (90.25%) | 67.3 V | 1027.18 V (148.87%) | 67949.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 373.62 V (54.15%) | 316.4 V | 616.31 V (89.32%) | 40769.6 W | Drop High |
| 4 mm² | 32 A | 25 A | 233.52 V (33.84%) | 456.5 V | 385.19 V (55.82%) | 25481.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 155.68 V (22.56%) | 534.3 V | 256.79 V (37.22%) | 16987.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 93.41 V (13.54%) | 596.6 V | 154.08 V (22.33%) | 10192.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 58.38 V (8.46%) | 631.6 V | 96.3 V (13.96%) | 6370.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 37.36 V (5.41%) | 652.6 V | 61.63 V (8.93%) | 4077.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 26.69 V (3.87%) | 663.3 V | 44.02 V (6.38%) | 2912.1 W | ~ ≤5% |
| 50 mm² | 151 A | 118 A | 18.68 V (2.71%) | 671.3 V | 30.82 V (4.47%) | 2038.5 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 13.34 V (1.93%) | 676.7 V | 22.01 V (3.19%) | 1456.1 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 9.83 V (1.42%) | 680.2 V | 16.22 V (2.35%) | 1072.9 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 7.78 V (1.13%) | 682.2 V | 12.84 V (1.86%) | 849.4 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 6.23 V (0.9%) | 683.8 V | 10.27 V (1.49%) | 679.5 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 5.05 V (0.73%) | 685.0 V | 8.33 V (1.21%) | 550.9 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 3.89 V (0.56%) | 686.1 V | 6.42 V (0.93%) | 424.7 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 3.11 V (0.45%) | 686.9 V | 5.14 V (0.74%) | 339.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 2.34 V (0.34%) | 687.7 V | 3.85 V (0.56%) | 254.8 W | ✓ OK (≤3%) |
FAQ — 63 Amp Cable Size at 400 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 63A at 400 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 50 mm² copper cable for 63A over 400m at 690V (voltage drop: 18.68V or 2.71%).
What is the power capacity of 63A at 690V?
At unity power factor, 63A at 690V supports 75.29 kW with a standard 63A circuit breaker.
Related Lengths & Currents (690V)
63A · 5m (690V)63A · 10m (690V)63A · 15m (690V)63A · 20m (690V)63A · 25m (690V)63A · 30m (690V)63A · 35m (690V)63A · 40m (690V)63A · 45m (690V)63A · 50m (690V)63A · 60m (690V)63A · 70m (690V)10A · 400m (690V)16A · 400m (690V)20A · 400m (690V)25A · 400m (690V)32A · 400m (690V)40A · 400m (690V)50A · 400m (690V)80A · 400m (690V)100A · 400m (690V)125A · 400m (690V)160A · 400m (690V)200A · 400m (690V)