350 Amp Cable Size at 5 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 350 A over 5 m (16.4 ft).
Copper Cable (≤3% Drop)185 mm²Drop: 0.35V (0.08%)
Aluminum Cable (≤3% Drop)300 mm²Drop: 0.36V (0.09%)
Voltage at Load414.6 VLine Loss: 212.6 W
Max Power & Breaker251.58 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 350A at 5m
| 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 | 43.24 V (10.42%) | 371.8 V | 71.33 V (17.19%) | 26215.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 25.95 V (6.25%) | 389.1 V | 42.8 V (10.31%) | 15729.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 16.22 V (3.91%) | 398.8 V | 26.75 V (6.45%) | 9830.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 10.81 V (2.61%) | 404.2 V | 17.83 V (4.3%) | 6553.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 6.49 V (1.56%) | 408.5 V | 10.7 V (2.58%) | 3932.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 4.05 V (0.98%) | 410.9 V | 6.69 V (1.61%) | 2457.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 2.59 V (0.63%) | 412.4 V | 4.28 V (1.03%) | 1572.9 W | Drop High |
| 35 mm² | 125 A | 97 A | 1.85 V (0.45%) | 413.1 V | 3.06 V (0.74%) | 1123.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 1.3 V (0.31%) | 413.7 V | 2.14 V (0.52%) | 786.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 0.93 V (0.22%) | 414.1 V | 1.53 V (0.37%) | 561.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 0.68 V (0.16%) | 414.3 V | 1.13 V (0.27%) | 413.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 0.54 V (0.13%) | 414.5 V | 0.89 V (0.21%) | 327.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 0.43 V (0.1%) | 414.6 V | 0.71 V (0.17%) | 262.1 W | Drop High |
| 185 mm² | 353 A | 275 A | 0.35 V (0.08%) | 414.6 V | 0.58 V (0.14%) | 212.6 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.27 V (0.07%) | 414.7 V | 0.45 V (0.11%) | 163.8 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.22 V (0.05%) | 414.8 V | 0.36 V (0.09%) | 131.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.16 V (0.04%) | 414.8 V | 0.27 V (0.06%) | 98.3 W | ✓ OK (≤3%) |
FAQ — 350 Amp Cable Size at 5 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 350A at 5 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 185 mm² copper cable for 350A over 5m at 415V (voltage drop: 0.35V or 0.08%).
What is the power capacity of 350A at 415V?
At unity power factor, 350A at 415V supports 251.58 kW with a standard 350A circuit breaker.
Related Lengths & Currents (415V)
350A · 10m (415V)350A · 15m (415V)350A · 20m (415V)350A · 25m (415V)350A · 30m (415V)350A · 35m (415V)350A · 40m (415V)350A · 45m (415V)350A · 50m (415V)350A · 60m (415V)350A · 70m (415V)10A · 5m (415V)16A · 5m (415V)20A · 5m (415V)25A · 5m (415V)32A · 5m (415V)40A · 5m (415V)50A · 5m (415V)63A · 5m (415V)80A · 5m (415V)100A · 5m (415V)125A · 5m (415V)160A · 5m (415V)200A · 5m (415V)