325 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 325 A over 200 m (656.2 ft).
Copper Cable (≤3% Drop)185 mm²Drop: 13.02V (1.89%)
Aluminum Cable (≤3% Drop)300 mm²Drop: 13.25V (1.92%)
Voltage at Load677.0 VLine Loss: 7330.9 W
Max Power & Breaker388.41 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A 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 | 1606.19 V (232.78%) | 0.0 V | 2649.46 V (383.98%) | 904150.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 963.71 V (139.67%) | 0.0 V | 1589.68 V (230.39%) | 542490.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 602.32 V (87.29%) | 87.7 V | 993.55 V (143.99%) | 339056.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 401.55 V (58.2%) | 288.5 V | 662.37 V (95.99%) | 226037.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 240.93 V (34.92%) | 449.1 V | 397.42 V (57.6%) | 135622.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 150.58 V (21.82%) | 539.4 V | 248.39 V (36.0%) | 84764.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 96.37 V (13.97%) | 593.6 V | 158.97 V (23.04%) | 54249.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 68.84 V (9.98%) | 621.2 V | 113.55 V (16.46%) | 38749.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 48.19 V (6.98%) | 641.8 V | 79.48 V (11.52%) | 27124.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 34.42 V (4.99%) | 655.6 V | 56.77 V (8.23%) | 19374.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 25.36 V (3.68%) | 664.6 V | 41.83 V (6.06%) | 14276.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 20.08 V (2.91%) | 669.9 V | 33.12 V (4.8%) | 11301.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 16.06 V (2.33%) | 673.9 V | 26.49 V (3.84%) | 9041.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 13.02 V (1.89%) | 677.0 V | 21.48 V (3.11%) | 7330.9 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 10.04 V (1.45%) | 680.0 V | 16.56 V (2.4%) | 5650.9 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 8.03 V (1.16%) | 682.0 V | 13.25 V (1.92%) | 4520.8 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 6.02 V (0.87%) | 684.0 V | 9.94 V (1.44%) | 3390.6 W | ✓ OK (≤3%) |
FAQ — 325 Amp Cable Size at 200 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 325A at 200 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 185 mm² copper cable for 325A over 200m at 690V (voltage drop: 13.02V or 1.89%).
What is the power capacity of 325A at 690V?
At unity power factor, 325A at 690V supports 388.41 kW with a standard 350A circuit breaker.
Related Lengths & Currents (690V)
325A · 5m (690V)325A · 10m (690V)325A · 15m (690V)325A · 20m (690V)325A · 25m (690V)325A · 30m (690V)325A · 35m (690V)325A · 40m (690V)325A · 45m (690V)325A · 50m (690V)325A · 60m (690V)325A · 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)