30 Amp Cable Size at 175 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 30 A over 175 m (574.1 ft).
Copper Cable (≤3% Drop)25 mm²Drop: 7.78V (1.95%)
Aluminum Cable (≤3% Drop)35 mm²Drop: 9.17V (2.29%)
Voltage at Load392.2 VLine Loss: 404.5 W
Max Power & Breaker20.78 kW30A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 30A 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 | 129.73 V (32.43%) | 270.3 V | 213.99 V (53.5%) | 6741.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 77.84 V (19.46%) | 322.2 V | 128.4 V (32.1%) | 4044.6 W | Drop High |
| 4 mm² | 32 A | 25 A | 48.65 V (12.16%) | 351.4 V | 80.25 V (20.06%) | 2527.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 32.43 V (8.11%) | 367.6 V | 53.5 V (13.37%) | 1685.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 19.46 V (4.86%) | 380.5 V | 32.1 V (8.02%) | 1011.1 W | ~ ≤5% |
| 16 mm² | 76 A | 59 A | 12.16 V (3.04%) | 387.8 V | 20.06 V (5.02%) | 632.0 W | ~ ≤5% |
| 25 mm² | 101 A | 78 A | 7.78 V (1.95%) | 392.2 V | 12.84 V (3.21%) | 404.5 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 5.56 V (1.39%) | 394.4 V | 9.17 V (2.29%) | 288.9 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 3.89 V (0.97%) | 396.1 V | 6.42 V (1.6%) | 202.2 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 2.78 V (0.69%) | 397.2 V | 4.59 V (1.15%) | 144.4 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 2.05 V (0.51%) | 398.0 V | 3.38 V (0.84%) | 106.4 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 1.62 V (0.41%) | 398.4 V | 2.67 V (0.67%) | 84.3 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 1.3 V (0.32%) | 398.7 V | 2.14 V (0.53%) | 67.4 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 1.05 V (0.26%) | 398.9 V | 1.74 V (0.43%) | 54.7 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.81 V (0.2%) | 399.2 V | 1.34 V (0.33%) | 42.1 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.65 V (0.16%) | 399.4 V | 1.07 V (0.27%) | 33.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.49 V (0.12%) | 399.5 V | 0.8 V (0.2%) | 25.3 W | ✓ OK (≤3%) |
FAQ — 30 Amp Cable Size at 175 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 30A at 175 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 25 mm² copper cable for 30A over 175m at 400V (voltage drop: 7.78V or 1.95%).
What is the power capacity of 30A at 400V?
At unity power factor, 30A at 400V supports 20.78 kW with a standard 30A circuit breaker.
Related Lengths & Currents (400V)
30A · 5m (400V)30A · 10m (400V)30A · 15m (400V)30A · 20m (400V)30A · 25m (400V)30A · 30m (400V)30A · 35m (400V)30A · 40m (400V)30A · 45m (400V)30A · 50m (400V)30A · 60m (400V)30A · 70m (400V)10A · 175m (400V)16A · 175m (400V)20A · 175m (400V)25A · 175m (400V)32A · 175m (400V)40A · 175m (400V)50A · 175m (400V)63A · 175m (400V)80A · 175m (400V)100A · 175m (400V)125A · 175m (400V)160A · 175m (400V)200A · 175m (400V)