275 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 275 A over 175 m (574.1 ft).
Copper Cable (≤3% Drop)150 mm²Drop: 11.89V (1.72%)
Aluminum Cable (≤3% Drop)185 mm²Drop: 15.91V (2.31%)
Voltage at Load678.1 VLine Loss: 5664.3 W
Max Power & Breaker328.66 kW300A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 275A 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 | 1189.2 V (172.35%) | 0.0 V | 1961.62 V (284.29%) | 566431.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 713.52 V (103.41%) | 0.0 V | 1176.97 V (170.58%) | 339858.7 W | Drop High |
| 4 mm² | 32 A | 25 A | 445.95 V (64.63%) | 244.1 V | 735.61 V (106.61%) | 212411.7 W | Drop High |
| 6 mm² | 41 A | 32 A | 297.3 V (43.09%) | 392.7 V | 490.4 V (71.07%) | 141607.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 178.38 V (25.85%) | 511.6 V | 294.24 V (42.64%) | 84964.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 111.49 V (16.16%) | 578.5 V | 183.9 V (26.65%) | 53102.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 71.35 V (10.34%) | 618.6 V | 117.7 V (17.06%) | 33985.9 W | Drop High |
| 35 mm² | 125 A | 97 A | 50.97 V (7.39%) | 639.0 V | 84.07 V (12.18%) | 24275.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 35.68 V (5.17%) | 654.3 V | 58.85 V (8.53%) | 16992.9 W | Drop High |
| 70 mm² | 192 A | 150 A | 25.48 V (3.69%) | 664.5 V | 42.03 V (6.09%) | 12137.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 18.78 V (2.72%) | 671.2 V | 30.97 V (4.49%) | 8943.7 W | Drop High |
| 120 mm² | 269 A | 210 A | 14.86 V (2.15%) | 675.1 V | 24.52 V (3.55%) | 7080.4 W | Drop High |
| 150 mm² | 309 A | 241 A | 11.89 V (1.72%) | 678.1 V | 19.62 V (2.84%) | 5664.3 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 9.64 V (1.4%) | 680.4 V | 15.91 V (2.31%) | 4592.7 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 7.43 V (1.08%) | 682.6 V | 12.26 V (1.78%) | 3540.2 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 5.95 V (0.86%) | 684.1 V | 9.81 V (1.42%) | 2832.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 4.46 V (0.65%) | 685.5 V | 7.36 V (1.07%) | 2124.1 W | ✓ OK (≤3%) |
FAQ — 275 Amp Cable Size at 175 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 275A at 175 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 150 mm² copper cable for 275A over 175m at 690V (voltage drop: 11.89V or 1.72%).
What is the power capacity of 275A at 690V?
At unity power factor, 275A at 690V supports 328.66 kW with a standard 300A circuit breaker.
Related Lengths & Currents (690V)
275A · 5m (690V)275A · 10m (690V)275A · 15m (690V)275A · 20m (690V)275A · 25m (690V)275A · 30m (690V)275A · 35m (690V)275A · 40m (690V)275A · 45m (690V)275A · 50m (690V)275A · 60m (690V)275A · 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)