550 Amp Cable Size at 250 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 550 A over 250 m (820.2 ft).
Copper Cable (≤3% Drop)3× 400 mm²Drop: 4.9V (2.13%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 24.27V (10.55%)
Voltage at Load225.1 VLine Loss: 2697.3 W
Max Power & Breaker126.5 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 250m
| 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 | 3923.33 V (1705.8%) | 0.0 V | 6471.67 V (2813.77%) | 2157833.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2354.0 V (1023.48%) | 0.0 V | 3883.0 V (1688.26%) | 1294700.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1471.25 V (639.67%) | 0.0 V | 2426.88 V (1055.16%) | 809187.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 980.83 V (426.45%) | 0.0 V | 1617.92 V (703.44%) | 539458.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 588.5 V (255.87%) | 0.0 V | 970.75 V (422.07%) | 323675.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 367.81 V (159.92%) | 0.0 V | 606.72 V (263.79%) | 202296.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 235.4 V (102.35%) | 0.0 V | 388.3 V (168.83%) | 129470.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 168.14 V (73.11%) | 61.9 V | 277.36 V (120.59%) | 92478.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 117.7 V (51.17%) | 112.3 V | 194.15 V (84.41%) | 64735.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 84.07 V (36.55%) | 145.9 V | 138.68 V (60.3%) | 46239.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 61.95 V (26.93%) | 168.1 V | 102.18 V (44.43%) | 34071.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 49.04 V (21.32%) | 181.0 V | 80.9 V (35.17%) | 26972.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 39.23 V (17.06%) | 190.8 V | 64.72 V (28.14%) | 21578.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 31.81 V (13.83%) | 198.2 V | 52.47 V (22.81%) | 17495.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 24.52 V (10.66%) | 205.5 V | 40.45 V (17.59%) | 13486.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 19.62 V (8.53%) | 210.4 V | 32.36 V (14.07%) | 10789.2 W | Drop High |
| 400 mm² | 570 A | 445 A | 14.71 V (6.4%) | 215.3 V | 24.27 V (10.55%) | 8091.9 W | Drop High |
FAQ — 550 Amp Cable Size at 250 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 550A at 250 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 3× 400 mm² copper cable for 550A over 250m at 230V (voltage drop: 4.9V or 2.13%).
What is the power capacity of 550A at 230V?
At unity power factor, 550A at 230V supports 126.5 kW with a standard 600A circuit breaker.
Related Lengths & Currents (230V)
550A · 5m (230V)550A · 10m (230V)550A · 15m (230V)550A · 20m (230V)550A · 25m (230V)550A · 30m (230V)550A · 35m (230V)550A · 40m (230V)550A · 45m (230V)550A · 50m (230V)550A · 60m (230V)550A · 70m (230V)10A · 250m (230V)16A · 250m (230V)20A · 250m (230V)25A · 250m (230V)32A · 250m (230V)40A · 250m (230V)50A · 250m (230V)63A · 250m (230V)80A · 250m (230V)100A · 250m (230V)125A · 250m (230V)160A · 250m (230V)200A · 250m (230V)