15 Amp Cable Size at 175 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 15 A over 175 m (574.1 ft).
Copper Cable (≤3% Drop)10 mm²Drop: 9.73V (2.34%)
Aluminum Cable (≤3% Drop)16 mm²Drop: 10.03V (2.42%)
Voltage at Load405.3 VLine Loss: 252.8 W
Max Power & Breaker10.78 kW15A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 15A 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 | 64.87 V (15.63%) | 350.1 V | 107.0 V (25.78%) | 1685.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 38.92 V (9.38%) | 376.1 V | 64.2 V (15.47%) | 1011.1 W | Drop High |
| 4 mm² | 32 A | 25 A | 24.32 V (5.86%) | 390.7 V | 40.12 V (9.67%) | 632.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 16.22 V (3.91%) | 398.8 V | 26.75 V (6.45%) | 421.3 W | ~ ≤5% |
| 10 mm² | 57 A | 44 A | 9.73 V (2.34%) | 405.3 V | 16.05 V (3.87%) | 252.8 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 6.08 V (1.47%) | 408.9 V | 10.03 V (2.42%) | 158.0 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 3.89 V (0.94%) | 411.1 V | 6.42 V (1.55%) | 101.1 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 2.78 V (0.67%) | 412.2 V | 4.59 V (1.1%) | 72.2 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.95 V (0.47%) | 413.1 V | 3.21 V (0.77%) | 50.6 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 1.39 V (0.33%) | 413.6 V | 2.29 V (0.55%) | 36.1 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 1.02 V (0.25%) | 414.0 V | 1.69 V (0.41%) | 26.6 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.81 V (0.2%) | 414.2 V | 1.34 V (0.32%) | 21.1 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.65 V (0.16%) | 414.4 V | 1.07 V (0.26%) | 16.9 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.53 V (0.13%) | 414.5 V | 0.87 V (0.21%) | 13.7 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.41 V (0.1%) | 414.6 V | 0.67 V (0.16%) | 10.5 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.32 V (0.08%) | 414.7 V | 0.53 V (0.13%) | 8.4 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.24 V (0.06%) | 414.8 V | 0.4 V (0.1%) | 6.3 W | ✓ OK (≤3%) |
FAQ — 15 Amp Cable Size at 175 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 15A at 175 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 10 mm² copper cable for 15A over 175m at 415V (voltage drop: 9.73V or 2.34%).
What is the power capacity of 15A at 415V?
At unity power factor, 15A at 415V supports 10.78 kW with a standard 15A circuit breaker.
Related Lengths & Currents (415V)
15A · 5m (415V)15A · 10m (415V)15A · 15m (415V)15A · 20m (415V)15A · 25m (415V)15A · 30m (415V)15A · 35m (415V)15A · 40m (415V)15A · 45m (415V)15A · 50m (415V)15A · 60m (415V)15A · 70m (415V)10A · 175m (415V)16A · 175m (415V)20A · 175m (415V)25A · 175m (415V)32A · 175m (415V)40A · 175m (415V)50A · 175m (415V)63A · 175m (415V)80A · 175m (415V)100A · 175m (415V)125A · 175m (415V)160A · 175m (415V)200A · 175m (415V)