475 Amp Cable Size at 70 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 475 A over 70 m (229.7 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 4.74V (2.06%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 5.87V (2.55%)
Voltage at Load225.3 VLine Loss: 2253.2 W
Max Power & Breaker109.25 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 70m
| 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 | 948.73 V (412.49%) | 0.0 V | 1564.97 V (680.42%) | 450648.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 569.24 V (247.5%) | 0.0 V | 938.98 V (408.25%) | 270389.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 355.77 V (154.68%) | 0.0 V | 586.86 V (255.16%) | 168993.1 W | Drop High |
| 6 mm² | 41 A | 32 A | 237.18 V (103.12%) | 0.0 V | 391.24 V (170.11%) | 112662.1 W | Drop High |
| 10 mm² | 57 A | 44 A | 142.31 V (61.87%) | 87.7 V | 234.75 V (102.06%) | 67597.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 88.94 V (38.67%) | 141.1 V | 146.72 V (63.79%) | 42248.3 W | Drop High |
| 25 mm² | 101 A | 78 A | 56.92 V (24.75%) | 173.1 V | 93.9 V (40.83%) | 27038.9 W | Drop High |
| 35 mm² | 125 A | 97 A | 40.66 V (17.68%) | 189.3 V | 67.07 V (29.16%) | 19313.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 28.46 V (12.37%) | 201.5 V | 46.95 V (20.41%) | 13519.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 20.33 V (8.84%) | 209.7 V | 33.53 V (14.58%) | 9656.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 14.98 V (6.51%) | 215.0 V | 24.71 V (10.74%) | 7115.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 11.86 V (5.16%) | 218.1 V | 19.56 V (8.51%) | 5633.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 9.49 V (4.12%) | 220.5 V | 15.65 V (6.8%) | 4506.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 7.69 V (3.34%) | 222.3 V | 12.69 V (5.52%) | 3653.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 5.93 V (2.58%) | 224.1 V | 9.78 V (4.25%) | 2816.6 W | Drop High |
| 300 mm² | 477 A | 372 A | 4.74 V (2.06%) | 225.3 V | 7.82 V (3.4%) | 2253.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 3.56 V (1.55%) | 226.4 V | 5.87 V (2.55%) | 1689.9 W | ✓ OK (≤3%) |
FAQ — 475 Amp Cable Size at 70 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 475A at 70 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 475A over 70m at 230V (voltage drop: 4.74V or 2.06%).
What is the power capacity of 475A at 230V?
At unity power factor, 475A at 230V supports 109.25 kW with a standard 500A circuit breaker.
Related Lengths & Currents (230V)
475A · 5m (230V)475A · 10m (230V)475A · 15m (230V)475A · 20m (230V)475A · 25m (230V)475A · 30m (230V)475A · 35m (230V)475A · 40m (230V)475A · 45m (230V)475A · 50m (230V)475A · 60m (230V)10A · 70m (230V)16A · 70m (230V)20A · 70m (230V)25A · 70m (230V)32A · 70m (230V)40A · 70m (230V)50A · 70m (230V)63A · 70m (230V)80A · 70m (230V)100A · 70m (230V)125A · 70m (230V)160A · 70m (230V)200A · 70m (230V)