550 Amp Cable Size at 500 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 550 A over 500 m (1640.4 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 12.74V (1.84%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 42.03V (6.09%)
Voltage at Load677.3 VLine Loss: 12137.8 W
Max Power & Breaker657.31 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 500m
| 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 | 6795.41 V (984.84%) | 0.0 V | 11209.26 V (1624.53%) | 6473500.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 4077.25 V (590.91%) | 0.0 V | 6725.55 V (974.72%) | 3884100.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2548.28 V (369.32%) | 0.0 V | 4203.47 V (609.2%) | 2427562.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 1698.85 V (246.21%) | 0.0 V | 2802.31 V (406.13%) | 1618375.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1019.31 V (147.73%) | 0.0 V | 1681.39 V (243.68%) | 971025.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 637.07 V (92.33%) | 52.9 V | 1050.87 V (152.3%) | 606890.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 407.72 V (59.09%) | 282.3 V | 672.56 V (97.47%) | 388410.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 291.23 V (42.21%) | 398.8 V | 480.4 V (69.62%) | 277435.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 203.86 V (29.55%) | 486.1 V | 336.28 V (48.74%) | 194205.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 145.62 V (21.1%) | 544.4 V | 240.2 V (34.81%) | 138717.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 107.3 V (15.55%) | 582.7 V | 176.99 V (25.65%) | 102213.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 84.94 V (12.31%) | 605.1 V | 140.12 V (20.31%) | 80918.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 67.95 V (9.85%) | 622.0 V | 112.09 V (16.25%) | 64735.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 55.1 V (7.99%) | 634.9 V | 90.89 V (13.17%) | 52487.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 42.47 V (6.16%) | 647.5 V | 70.06 V (10.15%) | 40459.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 33.98 V (4.92%) | 656.0 V | 56.05 V (8.12%) | 32367.5 W | Drop High |
| 400 mm² | 570 A | 445 A | 25.48 V (3.69%) | 664.5 V | 42.03 V (6.09%) | 24275.6 W | ~ ≤5% |
FAQ — 550 Amp Cable Size at 500 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 550A at 500 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 550A over 500m at 690V (voltage drop: 12.74V or 1.84%).
What is the power capacity of 550A at 690V?
At unity power factor, 550A at 690V supports 657.31 kW with a standard 600A circuit breaker.
Related Lengths & Currents (690V)
550A · 5m (690V)550A · 10m (690V)550A · 15m (690V)550A · 20m (690V)550A · 25m (690V)550A · 30m (690V)550A · 35m (690V)550A · 40m (690V)550A · 45m (690V)550A · 50m (690V)550A · 60m (690V)550A · 70m (690V)10A · 500m (690V)16A · 500m (690V)20A · 500m (690V)25A · 500m (690V)32A · 500m (690V)40A · 500m (690V)50A · 500m (690V)63A · 500m (690V)80A · 500m (690V)100A · 500m (690V)125A · 500m (690V)160A · 500m (690V)200A · 500m (690V)