550 Amp Cable Size at 80 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 550 A over 80 m (262.5 ft).
Copper Cable (≤3% Drop)400 mm²Drop: 4.08V (0.98%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 6.73V (1.62%)
Voltage at Load410.9 VLine Loss: 3884.1 W
Max Power & Breaker395.34 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 80m
| 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 | 1087.27 V (261.99%) | 0.0 V | 1793.48 V (432.16%) | 1035760.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 652.36 V (157.2%) | 0.0 V | 1076.09 V (259.3%) | 621456.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 407.72 V (98.25%) | 7.3 V | 672.56 V (162.06%) | 388410.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 271.82 V (65.5%) | 143.2 V | 448.37 V (108.04%) | 258940.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 163.09 V (39.3%) | 251.9 V | 269.02 V (64.82%) | 155364.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 101.93 V (24.56%) | 313.1 V | 168.14 V (40.52%) | 97102.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 65.24 V (15.72%) | 349.8 V | 107.61 V (25.93%) | 62145.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 46.6 V (11.23%) | 368.4 V | 76.86 V (18.52%) | 44389.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 32.62 V (7.86%) | 382.4 V | 53.8 V (12.96%) | 31072.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 23.3 V (5.61%) | 391.7 V | 38.43 V (9.26%) | 22194.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 17.17 V (4.14%) | 397.8 V | 28.32 V (6.82%) | 16354.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 13.59 V (3.27%) | 401.4 V | 22.42 V (5.4%) | 12947.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 10.87 V (2.62%) | 404.1 V | 17.93 V (4.32%) | 10357.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 8.82 V (2.12%) | 406.2 V | 14.54 V (3.5%) | 8398.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 6.8 V (1.64%) | 408.2 V | 11.21 V (2.7%) | 6473.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 5.44 V (1.31%) | 409.6 V | 8.97 V (2.16%) | 5178.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 4.08 V (0.98%) | 410.9 V | 6.73 V (1.62%) | 3884.1 W | ✓ OK (≤3%) |
FAQ — 550 Amp Cable Size at 80 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 550A at 80 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 550A over 80m at 415V (voltage drop: 4.08V or 0.98%).
What is the power capacity of 550A at 415V?
At unity power factor, 550A at 415V supports 395.34 kW with a standard 600A circuit breaker.
Related Lengths & Currents (415V)
550A · 5m (415V)550A · 10m (415V)550A · 15m (415V)550A · 20m (415V)550A · 25m (415V)550A · 30m (415V)550A · 35m (415V)550A · 40m (415V)550A · 45m (415V)550A · 50m (415V)550A · 60m (415V)550A · 70m (415V)10A · 80m (415V)16A · 80m (415V)20A · 80m (415V)25A · 80m (415V)32A · 80m (415V)40A · 80m (415V)50A · 80m (415V)63A · 80m (415V)80A · 80m (415V)100A · 80m (415V)125A · 80m (415V)160A · 80m (415V)200A · 80m (415V)