175 Amp Cable Size at 15 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 175 A over 15 m (49.2 ft).
Copper Cable (≤3% Drop)70 mm²Drop: 1.39V (0.2%)
Aluminum Cable (≤3% Drop)95 mm²Drop: 1.69V (0.24%)
Voltage at Load688.6 VLine Loss: 421.3 W
Max Power & Breaker209.15 kW175A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 175A at 15m
| 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 | 64.87 V (9.4%) | 625.1 V | 107.0 V (15.51%) | 19661.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 38.92 V (5.64%) | 651.1 V | 64.2 V (9.3%) | 11796.8 W | Drop High |
| 4 mm² | 32 A | 25 A | 24.32 V (3.53%) | 665.7 V | 40.12 V (5.82%) | 7373.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 16.22 V (2.35%) | 673.8 V | 26.75 V (3.88%) | 4915.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 9.73 V (1.41%) | 680.3 V | 16.05 V (2.33%) | 2949.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 6.08 V (0.88%) | 683.9 V | 10.03 V (1.45%) | 1843.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 3.89 V (0.56%) | 686.1 V | 6.42 V (0.93%) | 1179.7 W | Drop High |
| 35 mm² | 125 A | 97 A | 2.78 V (0.4%) | 687.2 V | 4.59 V (0.66%) | 842.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 1.95 V (0.28%) | 688.1 V | 3.21 V (0.47%) | 589.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.39 V (0.2%) | 688.6 V | 2.29 V (0.33%) | 421.3 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 1.02 V (0.15%) | 689.0 V | 1.69 V (0.24%) | 310.4 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.81 V (0.12%) | 689.2 V | 1.34 V (0.19%) | 245.8 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.65 V (0.09%) | 689.4 V | 1.07 V (0.16%) | 196.6 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.53 V (0.08%) | 689.5 V | 0.87 V (0.13%) | 159.4 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.41 V (0.06%) | 689.6 V | 0.67 V (0.1%) | 122.9 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.32 V (0.05%) | 689.7 V | 0.53 V (0.08%) | 98.3 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.24 V (0.04%) | 689.8 V | 0.4 V (0.06%) | 73.7 W | ✓ OK (≤3%) |
FAQ — 175 Amp Cable Size at 15 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 175A at 15 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 70 mm² copper cable for 175A over 15m at 690V (voltage drop: 1.39V or 0.2%).
What is the power capacity of 175A at 690V?
At unity power factor, 175A at 690V supports 209.15 kW with a standard 175A circuit breaker.
Related Lengths & Currents (690V)
175A · 5m (690V)175A · 10m (690V)175A · 20m (690V)175A · 25m (690V)175A · 30m (690V)175A · 35m (690V)175A · 40m (690V)175A · 45m (690V)175A · 50m (690V)175A · 60m (690V)175A · 70m (690V)10A · 15m (690V)16A · 15m (690V)20A · 15m (690V)25A · 15m (690V)32A · 15m (690V)40A · 15m (690V)50A · 15m (690V)63A · 15m (690V)80A · 15m (690V)100A · 15m (690V)125A · 15m (690V)160A · 15m (690V)200A · 15m (690V)