425 Amp Cable Size at 200 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 425 A over 200 m (656.2 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 10.5V (1.52%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 12.99V (1.88%)
Voltage at Load679.5 VLine Loss: 7730.7 W
Max Power & Breaker507.92 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 200m
| 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 | 2100.4 V (304.41%) | 0.0 V | 3464.68 V (502.13%) | 1546150.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1260.24 V (182.64%) | 0.0 V | 2078.81 V (301.28%) | 927690.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 787.65 V (114.15%) | 0.0 V | 1299.25 V (188.3%) | 579806.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 525.1 V (76.1%) | 164.9 V | 866.17 V (125.53%) | 386537.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 315.06 V (45.66%) | 374.9 V | 519.7 V (75.32%) | 231922.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 196.91 V (28.54%) | 493.1 V | 324.81 V (47.07%) | 144951.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 126.02 V (18.26%) | 564.0 V | 207.88 V (30.13%) | 92769.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 90.02 V (13.05%) | 600.0 V | 148.49 V (21.52%) | 66263.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 63.01 V (9.13%) | 627.0 V | 103.94 V (15.06%) | 46384.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 45.01 V (6.52%) | 645.0 V | 74.24 V (10.76%) | 33131.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 33.16 V (4.81%) | 656.8 V | 54.71 V (7.93%) | 24412.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 26.26 V (3.81%) | 663.7 V | 43.31 V (6.28%) | 19326.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 21.0 V (3.04%) | 669.0 V | 34.65 V (5.02%) | 15461.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 17.03 V (2.47%) | 673.0 V | 28.09 V (4.07%) | 12536.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 13.13 V (1.9%) | 676.9 V | 21.65 V (3.14%) | 9663.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 10.5 V (1.52%) | 679.5 V | 17.32 V (2.51%) | 7730.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 7.88 V (1.14%) | 682.1 V | 12.99 V (1.88%) | 5798.1 W | ✓ OK (≤3%) |
FAQ — 425 Amp Cable Size at 200 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 425A at 200 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 425A over 200m at 690V (voltage drop: 10.5V or 1.52%).
What is the power capacity of 425A at 690V?
At unity power factor, 425A at 690V supports 507.92 kW with a standard 450A circuit breaker.
Related Lengths & Currents (690V)
425A · 5m (690V)425A · 10m (690V)425A · 15m (690V)425A · 20m (690V)425A · 25m (690V)425A · 30m (690V)425A · 35m (690V)425A · 40m (690V)425A · 45m (690V)425A · 50m (690V)425A · 60m (690V)425A · 70m (690V)10A · 200m (690V)16A · 200m (690V)20A · 200m (690V)25A · 200m (690V)32A · 200m (690V)40A · 200m (690V)50A · 200m (690V)63A · 200m (690V)80A · 200m (690V)100A · 200m (690V)125A · 200m (690V)160A · 200m (690V)200A · 200m (690V)