425 Amp Cable Size at 5 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 425 A over 5 m (16.4 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 0.3V (0.13%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.38V (0.16%)
Voltage at Load229.7 VLine Loss: 128.8 W
Max Power & Breaker97.75 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A 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 | 60.63 V (26.36%) | 169.4 V | 100.02 V (43.49%) | 25769.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 36.38 V (15.82%) | 193.6 V | 60.01 V (26.09%) | 15461.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 22.74 V (9.89%) | 207.3 V | 37.51 V (16.31%) | 9663.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 15.16 V (6.59%) | 214.8 V | 25.0 V (10.87%) | 6442.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 9.09 V (3.95%) | 220.9 V | 15.0 V (6.52%) | 3865.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 5.68 V (2.47%) | 224.3 V | 9.38 V (4.08%) | 2415.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 3.64 V (1.58%) | 226.4 V | 6.0 V (2.61%) | 1546.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 2.6 V (1.13%) | 227.4 V | 4.29 V (1.86%) | 1104.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 1.82 V (0.79%) | 228.2 V | 3.0 V (1.3%) | 773.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.3 V (0.56%) | 228.7 V | 2.14 V (0.93%) | 552.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 0.96 V (0.42%) | 229.0 V | 1.58 V (0.69%) | 406.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 0.76 V (0.33%) | 229.2 V | 1.25 V (0.54%) | 322.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 0.61 V (0.26%) | 229.4 V | 1.0 V (0.43%) | 257.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 0.49 V (0.21%) | 229.5 V | 0.81 V (0.35%) | 208.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 0.38 V (0.16%) | 229.6 V | 0.63 V (0.27%) | 161.1 W | Drop High |
| 300 mm² | 477 A | 372 A | 0.3 V (0.13%) | 229.7 V | 0.5 V (0.22%) | 128.8 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.23 V (0.1%) | 229.8 V | 0.38 V (0.16%) | 96.6 W | ✓ OK (≤3%) |
FAQ — 425 Amp Cable Size at 5 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 425A at 5 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 425A over 5m at 230V (voltage drop: 0.3V or 0.13%).
What is the power capacity of 425A at 230V?
At unity power factor, 425A at 230V supports 97.75 kW with a standard 450A circuit breaker.
Related Lengths & Currents (230V)
425A · 10m (230V)425A · 15m (230V)425A · 20m (230V)425A · 25m (230V)425A · 30m (230V)425A · 35m (230V)425A · 40m (230V)425A · 45m (230V)425A · 50m (230V)425A · 60m (230V)425A · 70m (230V)10A · 5m (230V)16A · 5m (230V)20A · 5m (230V)25A · 5m (230V)32A · 5m (230V)40A · 5m (230V)50A · 5m (230V)63A · 5m (230V)80A · 5m (230V)100A · 5m (230V)125A · 5m (230V)160A · 5m (230V)200A · 5m (230V)