475 Amp Cable Size at 25 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 25 m (82.0 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 1.69V (0.74%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 2.1V (0.91%)
Voltage at Load228.3 VLine Loss: 804.7 W
Max Power & Breaker109.25 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 25m
| 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 | 338.83 V (147.32%) | 0.0 V | 558.92 V (243.01%) | 160945.8 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 203.3 V (88.39%) | 26.7 V | 335.35 V (145.8%) | 96567.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 127.06 V (55.24%) | 102.9 V | 209.59 V (91.13%) | 60354.7 W | Drop High |
| 6 mm² | 41 A | 32 A | 84.71 V (36.83%) | 145.3 V | 139.73 V (60.75%) | 40236.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 50.82 V (22.1%) | 179.2 V | 83.84 V (36.45%) | 24141.9 W | Drop High |
| 16 mm² | 76 A | 59 A | 31.77 V (13.81%) | 198.2 V | 52.4 V (22.78%) | 15088.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 20.33 V (8.84%) | 209.7 V | 33.53 V (14.58%) | 9656.7 W | Drop High |
| 35 mm² | 125 A | 97 A | 14.52 V (6.31%) | 215.5 V | 23.95 V (10.41%) | 6897.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 10.16 V (4.42%) | 219.8 V | 16.77 V (7.29%) | 4828.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 7.26 V (3.16%) | 222.7 V | 11.98 V (5.21%) | 3448.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 5.35 V (2.33%) | 224.7 V | 8.82 V (3.84%) | 2541.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 4.24 V (1.84%) | 225.8 V | 6.99 V (3.04%) | 2011.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 3.39 V (1.47%) | 226.6 V | 5.59 V (2.43%) | 1609.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 2.75 V (1.19%) | 227.3 V | 4.53 V (1.97%) | 1305.0 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.12 V (0.92%) | 227.9 V | 3.49 V (1.52%) | 1005.9 W | Drop High |
| 300 mm² | 477 A | 372 A | 1.69 V (0.74%) | 228.3 V | 2.79 V (1.22%) | 804.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 1.27 V (0.55%) | 228.7 V | 2.1 V (0.91%) | 603.5 W | ✓ OK (≤3%) |
FAQ — 475 Amp Cable Size at 25 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 475A at 25 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 25m at 230V (voltage drop: 1.69V or 0.74%).
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 · 30m (230V)475A · 35m (230V)475A · 40m (230V)475A · 45m (230V)475A · 50m (230V)475A · 60m (230V)475A · 70m (230V)10A · 25m (230V)16A · 25m (230V)20A · 25m (230V)25A · 25m (230V)32A · 25m (230V)40A · 25m (230V)50A · 25m (230V)63A · 25m (230V)80A · 25m (230V)100A · 25m (230V)125A · 25m (230V)160A · 25m (230V)200A · 25m (230V)