425 Amp Cable Size at 30 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 30 m (98.4 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 1.82V (0.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 2.25V (0.98%)
Voltage at Load228.2 VLine Loss: 773.1 W
Max Power & Breaker97.75 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 30m
| 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 | 363.8 V (158.17%) | 0.0 V | 600.1 V (260.91%) | 154615.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 218.28 V (94.9%) | 11.7 V | 360.06 V (156.55%) | 92769.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 136.43 V (59.32%) | 93.6 V | 225.04 V (97.84%) | 57980.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 90.95 V (39.54%) | 139.1 V | 150.03 V (65.23%) | 38653.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 54.57 V (23.73%) | 175.4 V | 90.02 V (39.14%) | 23192.3 W | Drop High |
| 16 mm² | 76 A | 59 A | 34.11 V (14.83%) | 195.9 V | 56.26 V (24.46%) | 14495.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 21.83 V (9.49%) | 208.2 V | 36.01 V (15.65%) | 9276.9 W | Drop High |
| 35 mm² | 125 A | 97 A | 15.59 V (6.78%) | 214.4 V | 25.72 V (11.18%) | 6626.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 10.91 V (4.75%) | 219.1 V | 18.0 V (7.83%) | 4638.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 7.8 V (3.39%) | 222.2 V | 12.86 V (5.59%) | 3313.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 5.74 V (2.5%) | 224.3 V | 9.48 V (4.12%) | 2441.3 W | Drop High |
| 120 mm² | 269 A | 210 A | 4.55 V (1.98%) | 225.5 V | 7.5 V (3.26%) | 1932.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 3.64 V (1.58%) | 226.4 V | 6.0 V (2.61%) | 1546.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 2.95 V (1.28%) | 227.1 V | 4.87 V (2.12%) | 1253.6 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.27 V (0.99%) | 227.7 V | 3.75 V (1.63%) | 966.3 W | Drop High |
| 300 mm² | 477 A | 372 A | 1.82 V (0.79%) | 228.2 V | 3.0 V (1.3%) | 773.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 1.36 V (0.59%) | 228.6 V | 2.25 V (0.98%) | 579.8 W | ✓ OK (≤3%) |
FAQ — 425 Amp Cable Size at 30 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 425A at 30 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 30m at 230V (voltage drop: 1.82V or 0.79%).
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 · 5m (230V)425A · 10m (230V)425A · 15m (230V)425A · 20m (230V)425A · 25m (230V)425A · 35m (230V)425A · 40m (230V)425A · 45m (230V)425A · 50m (230V)425A · 60m (230V)425A · 70m (230V)10A · 30m (230V)16A · 30m (230V)20A · 30m (230V)25A · 30m (230V)32A · 30m (230V)40A · 30m (230V)50A · 30m (230V)63A · 30m (230V)80A · 30m (230V)100A · 30m (230V)125A · 30m (230V)160A · 30m (230V)200A · 30m (230V)