350 Amp Cable Size at 175 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 350 A over 175 m (574.1 ft).
Copper Cable (≤3% Drop)185 mm²Drop: 12.27V (1.78%)
Aluminum Cable (≤3% Drop)300 mm²Drop: 12.48V (1.81%)
Voltage at Load677.7 VLine Loss: 7439.4 W
Max Power & Breaker418.29 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 350A at 175m
| 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 | 1513.52 V (219.35%) | 0.0 V | 2496.61 V (361.83%) | 917525.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 908.11 V (131.61%) | 0.0 V | 1497.96 V (217.1%) | 550515.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 567.57 V (82.26%) | 122.4 V | 936.23 V (135.69%) | 344071.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 378.38 V (54.84%) | 311.6 V | 624.15 V (90.46%) | 229381.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 227.03 V (32.9%) | 463.0 V | 374.49 V (54.27%) | 137628.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 141.89 V (20.56%) | 548.1 V | 234.06 V (33.92%) | 86018.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 90.81 V (13.16%) | 599.2 V | 149.8 V (21.71%) | 55051.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 64.87 V (9.4%) | 625.1 V | 107.0 V (15.51%) | 39322.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 45.41 V (6.58%) | 644.6 V | 74.9 V (10.85%) | 27525.7 W | Drop High |
| 70 mm² | 192 A | 150 A | 32.43 V (4.7%) | 657.6 V | 53.5 V (7.75%) | 19661.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 23.9 V (3.46%) | 666.1 V | 39.42 V (5.71%) | 14487.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 18.92 V (2.74%) | 671.1 V | 31.21 V (4.52%) | 11469.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 15.14 V (2.19%) | 674.9 V | 24.97 V (3.62%) | 9175.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 12.27 V (1.78%) | 677.7 V | 20.24 V (2.93%) | 7439.4 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 9.46 V (1.37%) | 680.5 V | 15.6 V (2.26%) | 5734.5 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 7.57 V (1.1%) | 682.4 V | 12.48 V (1.81%) | 4587.6 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 5.68 V (0.82%) | 684.3 V | 9.36 V (1.36%) | 3440.7 W | ✓ OK (≤3%) |
FAQ — 350 Amp Cable Size at 175 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 350A at 175 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 185 mm² copper cable for 350A over 175m at 690V (voltage drop: 12.27V or 1.78%).
What is the power capacity of 350A at 690V?
At unity power factor, 350A at 690V supports 418.29 kW with a standard 350A circuit breaker.
Related Lengths & Currents (690V)
350A · 5m (690V)350A · 10m (690V)350A · 15m (690V)350A · 20m (690V)350A · 25m (690V)350A · 30m (690V)350A · 35m (690V)350A · 40m (690V)350A · 45m (690V)350A · 50m (690V)350A · 60m (690V)350A · 70m (690V)10A · 175m (690V)16A · 175m (690V)20A · 175m (690V)25A · 175m (690V)32A · 175m (690V)40A · 175m (690V)50A · 175m (690V)63A · 175m (690V)80A · 175m (690V)100A · 175m (690V)125A · 175m (690V)160A · 175m (690V)200A · 175m (690V)