250 Amp Cable Size at 200 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 250 A over 200 m (656.2 ft).
Copper Cable (≤3% Drop)185 mm²Drop: 10.02V (2.5%)
Aluminum Cable (≤3% Drop)300 mm²Drop: 10.19V (2.55%)
Voltage at Load390.0 VLine Loss: 4337.8 W
Max Power & Breaker173.21 kW250A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 250A at 200m
| 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 | 1235.53 V (308.88%) | 0.0 V | 2038.05 V (509.51%) | 535000.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 741.32 V (185.33%) | 0.0 V | 1222.83 V (305.71%) | 321000.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 463.32 V (115.83%) | 0.0 V | 764.27 V (191.07%) | 200625.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 308.88 V (77.22%) | 91.1 V | 509.51 V (127.38%) | 133750.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 185.33 V (46.33%) | 214.7 V | 305.71 V (76.43%) | 80250.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 115.83 V (28.96%) | 284.2 V | 191.07 V (47.77%) | 50156.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 74.13 V (18.53%) | 325.9 V | 122.28 V (30.57%) | 32100.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 52.95 V (13.24%) | 347.0 V | 87.34 V (21.84%) | 22928.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 37.07 V (9.27%) | 362.9 V | 61.14 V (15.29%) | 16050.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 26.48 V (6.62%) | 373.5 V | 43.67 V (10.92%) | 11464.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 19.51 V (4.88%) | 380.5 V | 32.18 V (8.04%) | 8447.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 15.44 V (3.86%) | 384.6 V | 25.48 V (6.37%) | 6687.5 W | ~ ≤5% |
| 150 mm² | 309 A | 241 A | 12.36 V (3.09%) | 387.6 V | 20.38 V (5.1%) | 5350.0 W | ~ ≤5% |
| 185 mm² | 353 A | 275 A | 10.02 V (2.5%) | 390.0 V | 16.52 V (4.13%) | 4337.8 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 7.72 V (1.93%) | 392.3 V | 12.74 V (3.18%) | 3343.7 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 6.18 V (1.54%) | 393.8 V | 10.19 V (2.55%) | 2675.0 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 4.63 V (1.16%) | 395.4 V | 7.64 V (1.91%) | 2006.2 W | ✓ OK (≤3%) |
FAQ — 250 Amp Cable Size at 200 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 250A at 200 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 185 mm² copper cable for 250A over 200m at 400V (voltage drop: 10.02V or 2.5%).
What is the power capacity of 250A at 400V?
At unity power factor, 250A at 400V supports 173.21 kW with a standard 250A circuit breaker.
Related Lengths & Currents (400V)
250A · 5m (400V)250A · 10m (400V)250A · 15m (400V)250A · 20m (400V)250A · 25m (400V)250A · 30m (400V)250A · 35m (400V)250A · 40m (400V)250A · 45m (400V)250A · 50m (400V)250A · 60m (400V)250A · 70m (400V)10A · 200m (400V)16A · 200m (400V)20A · 200m (400V)25A · 200m (400V)32A · 200m (400V)40A · 200m (400V)50A · 200m (400V)63A · 200m (400V)80A · 200m (400V)100A · 200m (400V)125A · 200m (400V)160A · 200m (400V)200A · 200m (400V)