550 Amp Cable Size at 45 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 45 m (147.6 ft).
Copper Cable (≤3% Drop)400 mm²Drop: 2.65V (1.15%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 4.37V (1.9%)
Voltage at Load227.4 VLine Loss: 1456.5 W
Max Power & Breaker126.5 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A 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 | 706.2 V (307.04%) | 0.0 V | 1164.9 V (506.48%) | 388410.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 423.72 V (184.23%) | 0.0 V | 698.94 V (303.89%) | 233046.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 264.82 V (115.14%) | 0.0 V | 436.84 V (189.93%) | 145653.8 W | Drop High |
| 6 mm² | 41 A | 32 A | 176.55 V (76.76%) | 53.4 V | 291.22 V (126.62%) | 97102.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 105.93 V (46.06%) | 124.1 V | 174.73 V (75.97%) | 58261.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 66.21 V (28.79%) | 163.8 V | 109.21 V (47.48%) | 36413.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 42.37 V (18.42%) | 187.6 V | 69.89 V (30.39%) | 23304.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 30.27 V (13.16%) | 199.7 V | 49.92 V (21.71%) | 16646.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 21.19 V (9.21%) | 208.8 V | 34.95 V (15.19%) | 11652.3 W | Drop High |
| 70 mm² | 192 A | 150 A | 15.13 V (6.58%) | 214.9 V | 24.96 V (10.85%) | 8323.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 11.15 V (4.85%) | 218.8 V | 18.39 V (8.0%) | 6132.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 8.83 V (3.84%) | 221.2 V | 14.56 V (6.33%) | 4855.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 7.06 V (3.07%) | 222.9 V | 11.65 V (5.06%) | 3884.1 W | Drop High |
| 185 mm² | 353 A | 275 A | 5.73 V (2.49%) | 224.3 V | 9.45 V (4.11%) | 3149.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 4.41 V (1.92%) | 225.6 V | 7.28 V (3.17%) | 2427.6 W | Drop High |
| 300 mm² | 477 A | 372 A | 3.53 V (1.54%) | 226.5 V | 5.82 V (2.53%) | 1942.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 2.65 V (1.15%) | 227.4 V | 4.37 V (1.9%) | 1456.5 W | ✓ OK (≤3%) |
FAQ — 550 Amp Cable Size at 45 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 550A at 45 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 45m at 230V (voltage drop: 2.65V or 1.15%).
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 · 50m (230V)550A · 60m (230V)550A · 70m (230V)10A · 45m (230V)16A · 45m (230V)20A · 45m (230V)25A · 45m (230V)32A · 45m (230V)40A · 45m (230V)50A · 45m (230V)63A · 45m (230V)80A · 45m (230V)100A · 45m (230V)125A · 45m (230V)160A · 45m (230V)200A · 45m (230V)