650 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 650 A over 50 m (164.0 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 1.5V (0.22%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 4.97V (0.72%)
Voltage at Load688.5 VLine Loss: 1695.3 W
Max Power & Breaker776.82 kW700A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 650A 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 | 803.09 V (116.39%) | 0.0 V | 1324.73 V (191.99%) | 904150.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 481.86 V (69.83%) | 208.1 V | 794.84 V (115.19%) | 542490.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 301.16 V (43.65%) | 388.8 V | 496.77 V (72.0%) | 339056.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 200.77 V (29.1%) | 489.2 V | 331.18 V (48.0%) | 226037.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 120.46 V (17.46%) | 569.5 V | 198.71 V (28.8%) | 135622.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 75.29 V (10.91%) | 614.7 V | 124.19 V (18.0%) | 84764.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 48.19 V (6.98%) | 641.8 V | 79.48 V (11.52%) | 54249.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 34.42 V (4.99%) | 655.6 V | 56.77 V (8.23%) | 38749.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 24.09 V (3.49%) | 665.9 V | 39.74 V (5.76%) | 27124.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 17.21 V (2.49%) | 672.8 V | 28.39 V (4.11%) | 19374.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 12.68 V (1.84%) | 677.3 V | 20.92 V (3.03%) | 14276.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 10.04 V (1.45%) | 680.0 V | 16.56 V (2.4%) | 11301.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 8.03 V (1.16%) | 682.0 V | 13.25 V (1.92%) | 9041.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 6.51 V (0.94%) | 683.5 V | 10.74 V (1.56%) | 7330.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 5.02 V (0.73%) | 685.0 V | 8.28 V (1.2%) | 5650.9 W | Drop High |
| 300 mm² | 477 A | 372 A | 4.02 V (0.58%) | 686.0 V | 6.62 V (0.96%) | 4520.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 3.01 V (0.44%) | 687.0 V | 4.97 V (0.72%) | 3390.6 W | Drop High |
FAQ — 650 Amp Cable Size at 50 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 650A at 50 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 650A over 50m at 690V (voltage drop: 1.5V or 0.22%).
What is the power capacity of 650A at 690V?
At unity power factor, 650A at 690V supports 776.82 kW with a standard 700A circuit breaker.
Related Lengths & Currents (690V)
650A · 5m (690V)650A · 10m (690V)650A · 15m (690V)650A · 20m (690V)650A · 25m (690V)650A · 30m (690V)650A · 35m (690V)650A · 40m (690V)650A · 45m (690V)650A · 60m (690V)650A · 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)