450 Amp Cable Size at 350 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 450 A over 350 m (1148.3 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 7.29V (1.76%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 24.07V (5.8%)
Voltage at Load407.7 VLine Loss: 5687.7 W
Max Power & Breaker323.46 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 450A at 350m
| 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 | 3891.92 V (937.81%) | 0.0 V | 6419.85 V (1546.95%) | 3033450.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2335.15 V (562.69%) | 0.0 V | 3851.91 V (928.17%) | 1820070.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1459.47 V (351.68%) | 0.0 V | 2407.44 V (580.11%) | 1137543.8 W | Drop High |
| 6 mm² | 41 A | 32 A | 972.98 V (234.45%) | 0.0 V | 1604.96 V (386.74%) | 758362.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 583.79 V (140.67%) | 0.0 V | 962.98 V (232.04%) | 455017.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 364.87 V (87.92%) | 50.1 V | 601.86 V (145.03%) | 284385.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 233.52 V (56.27%) | 181.5 V | 385.19 V (92.82%) | 182007.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 166.8 V (40.19%) | 248.2 V | 275.14 V (66.3%) | 130005.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 116.76 V (28.13%) | 298.2 V | 192.6 V (46.41%) | 91003.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 83.4 V (20.1%) | 331.6 V | 137.57 V (33.15%) | 65002.5 W | Drop High |
| 95 mm² | 232 A | 181 A | 61.45 V (14.81%) | 353.5 V | 101.37 V (24.43%) | 47896.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 48.65 V (11.72%) | 366.4 V | 80.25 V (19.34%) | 37918.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 38.92 V (9.38%) | 376.1 V | 64.2 V (15.47%) | 30334.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 31.56 V (7.6%) | 383.4 V | 52.05 V (12.54%) | 24595.5 W | Drop High |
| 240 mm² | 415 A | 324 A | 24.32 V (5.86%) | 390.7 V | 40.12 V (9.67%) | 18959.1 W | Drop High |
| 300 mm² | 477 A | 372 A | 19.46 V (4.69%) | 395.5 V | 32.1 V (7.73%) | 15167.2 W | ~ ≤5% |
| 400 mm² | 570 A | 445 A | 14.59 V (3.52%) | 400.4 V | 24.07 V (5.8%) | 11375.4 W | ~ ≤5% |
FAQ — 450 Amp Cable Size at 350 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 450A at 350 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 450A over 350m at 415V (voltage drop: 7.29V or 1.76%).
What is the power capacity of 450A at 415V?
At unity power factor, 450A at 415V supports 323.46 kW with a standard 450A circuit breaker.
Related Lengths & Currents (415V)
450A · 5m (415V)450A · 10m (415V)450A · 15m (415V)450A · 20m (415V)450A · 25m (415V)450A · 30m (415V)450A · 35m (415V)450A · 40m (415V)450A · 45m (415V)450A · 50m (415V)450A · 60m (415V)450A · 70m (415V)10A · 350m (415V)16A · 350m (415V)20A · 350m (415V)25A · 350m (415V)32A · 350m (415V)40A · 350m (415V)50A · 350m (415V)63A · 350m (415V)80A · 350m (415V)100A · 350m (415V)125A · 350m (415V)160A · 350m (415V)200A · 350m (415V)