550 Amp Cable Size at 40 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 40 m (131.2 ft).
Copper Cable (≤3% Drop)400 mm²Drop: 2.35V (1.02%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.88V (1.69%)
Voltage at Load227.6 VLine Loss: 1294.7 W
Max Power & Breaker126.5 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 40m
| 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 | 627.73 V (272.93%) | 0.0 V | 1035.47 V (450.2%) | 345253.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 376.64 V (163.76%) | 0.0 V | 621.28 V (270.12%) | 207152.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 235.4 V (102.35%) | 0.0 V | 388.3 V (168.83%) | 129470.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 156.93 V (68.23%) | 73.1 V | 258.87 V (112.55%) | 86313.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 94.16 V (40.94%) | 135.8 V | 155.32 V (67.53%) | 51788.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 58.85 V (25.59%) | 171.2 V | 97.07 V (42.21%) | 32367.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 37.66 V (16.38%) | 192.3 V | 62.13 V (27.01%) | 20715.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 26.9 V (11.7%) | 203.1 V | 44.38 V (19.29%) | 14796.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 18.83 V (8.19%) | 211.2 V | 31.06 V (13.51%) | 10357.6 W | Drop High |
| 70 mm² | 192 A | 150 A | 13.45 V (5.85%) | 216.5 V | 22.19 V (9.65%) | 7398.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 9.91 V (4.31%) | 220.1 V | 16.35 V (7.11%) | 5451.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 7.85 V (3.41%) | 222.2 V | 12.94 V (5.63%) | 4315.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 6.28 V (2.73%) | 223.7 V | 10.35 V (4.5%) | 3452.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 5.09 V (2.21%) | 224.9 V | 8.4 V (3.65%) | 2799.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 3.92 V (1.71%) | 226.1 V | 6.47 V (2.81%) | 2157.8 W | Drop High |
| 300 mm² | 477 A | 372 A | 3.14 V (1.36%) | 226.9 V | 5.18 V (2.25%) | 1726.3 W | Drop High |
| 400 mm² | 570 A | 445 A | 2.35 V (1.02%) | 227.6 V | 3.88 V (1.69%) | 1294.7 W | ✓ OK (≤3%) |
FAQ — 550 Amp Cable Size at 40 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 550A at 40 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 550A over 40m at 230V (voltage drop: 2.35V or 1.02%).
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 · 45m (230V)550A · 50m (230V)550A · 60m (230V)550A · 70m (230V)10A · 40m (230V)16A · 40m (230V)20A · 40m (230V)25A · 40m (230V)32A · 40m (230V)40A · 40m (230V)50A · 40m (230V)63A · 40m (230V)80A · 40m (230V)100A · 40m (230V)125A · 40m (230V)160A · 40m (230V)200A · 40m (230V)