475 Amp Cable Size at 45 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 475 A over 45 m (147.6 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 2.64V (0.66%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.27V (0.82%)
Voltage at Load397.4 VLine Loss: 2172.8 W
Max Power & Breaker329.09 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 45m
| 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 | 528.19 V (132.05%) | 0.0 V | 871.26 V (217.82%) | 434553.8 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 316.91 V (79.23%) | 83.1 V | 522.76 V (130.69%) | 260732.2 W | Drop High |
| 4 mm² | 32 A | 25 A | 198.07 V (49.52%) | 201.9 V | 326.72 V (81.68%) | 162957.7 W | Drop High |
| 6 mm² | 41 A | 32 A | 132.05 V (33.01%) | 268.0 V | 217.82 V (54.45%) | 108638.4 W | Drop High |
| 10 mm² | 57 A | 44 A | 79.23 V (19.81%) | 320.8 V | 130.69 V (32.67%) | 65183.1 W | Drop High |
| 16 mm² | 76 A | 59 A | 49.52 V (12.38%) | 350.5 V | 81.68 V (20.42%) | 40739.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 31.69 V (7.92%) | 368.3 V | 52.28 V (13.07%) | 26073.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 22.64 V (5.66%) | 377.4 V | 37.34 V (9.33%) | 18623.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 15.85 V (3.96%) | 384.2 V | 26.14 V (6.53%) | 13036.6 W | Drop High |
| 70 mm² | 192 A | 150 A | 11.32 V (2.83%) | 388.7 V | 18.67 V (4.67%) | 9311.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 8.34 V (2.08%) | 391.7 V | 13.76 V (3.44%) | 6861.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 6.6 V (1.65%) | 393.4 V | 10.89 V (2.72%) | 5431.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 5.28 V (1.32%) | 394.7 V | 8.71 V (2.18%) | 4345.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 4.28 V (1.07%) | 395.7 V | 7.06 V (1.77%) | 3523.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 3.3 V (0.83%) | 396.7 V | 5.45 V (1.36%) | 2716.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.64 V (0.66%) | 397.4 V | 4.36 V (1.09%) | 2172.8 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 1.98 V (0.5%) | 398.0 V | 3.27 V (0.82%) | 1629.6 W | ✓ OK (≤3%) |
FAQ — 475 Amp Cable Size at 45 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 475A at 45 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 475A over 45m at 400V (voltage drop: 2.64V or 0.66%).
What is the power capacity of 475A at 400V?
At unity power factor, 475A at 400V supports 329.09 kW with a standard 500A circuit breaker.
Related Lengths & Currents (400V)
475A · 5m (400V)475A · 10m (400V)475A · 15m (400V)475A · 20m (400V)475A · 25m (400V)475A · 30m (400V)475A · 35m (400V)475A · 40m (400V)475A · 50m (400V)475A · 60m (400V)475A · 70m (400V)10A · 45m (400V)16A · 45m (400V)20A · 45m (400V)25A · 45m (400V)32A · 45m (400V)40A · 45m (400V)50A · 45m (400V)63A · 45m (400V)80A · 45m (400V)100A · 45m (400V)125A · 45m (400V)160A · 45m (400V)200A · 45m (400V)