550 Amp Cable Size at 30 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 30 m (98.4 ft).
Copper Cable (≤3% Drop)400 mm²Drop: 1.53V (0.37%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 2.52V (0.61%)
Voltage at Load413.5 VLine Loss: 1456.5 W
Max Power & Breaker395.34 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 30m
| 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 | 407.72 V (98.25%) | 7.3 V | 672.56 V (162.06%) | 388410.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 244.63 V (58.95%) | 170.4 V | 403.53 V (97.24%) | 233046.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 152.9 V (36.84%) | 262.1 V | 252.21 V (60.77%) | 145653.8 W | Drop High |
| 6 mm² | 41 A | 32 A | 101.93 V (24.56%) | 313.1 V | 168.14 V (40.52%) | 97102.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 61.16 V (14.74%) | 353.8 V | 100.88 V (24.31%) | 58261.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 38.22 V (9.21%) | 376.8 V | 63.05 V (15.19%) | 36413.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 24.46 V (5.89%) | 390.5 V | 40.35 V (9.72%) | 23304.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 17.47 V (4.21%) | 397.5 V | 28.82 V (6.95%) | 16646.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 12.23 V (2.95%) | 402.8 V | 20.18 V (4.86%) | 11652.3 W | Drop High |
| 70 mm² | 192 A | 150 A | 8.74 V (2.11%) | 406.3 V | 14.41 V (3.47%) | 8323.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 6.44 V (1.55%) | 408.6 V | 10.62 V (2.56%) | 6132.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 5.1 V (1.23%) | 409.9 V | 8.41 V (2.03%) | 4855.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 4.08 V (0.98%) | 410.9 V | 6.73 V (1.62%) | 3884.1 W | Drop High |
| 185 mm² | 353 A | 275 A | 3.31 V (0.8%) | 411.7 V | 5.45 V (1.31%) | 3149.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.55 V (0.61%) | 412.5 V | 4.2 V (1.01%) | 2427.6 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.04 V (0.49%) | 413.0 V | 3.36 V (0.81%) | 1942.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 1.53 V (0.37%) | 413.5 V | 2.52 V (0.61%) | 1456.5 W | ✓ OK (≤3%) |
FAQ — 550 Amp Cable Size at 30 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 550A at 30 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 30m at 415V (voltage drop: 1.53V or 0.37%).
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 · 35m (415V)550A · 40m (415V)550A · 45m (415V)550A · 50m (415V)550A · 60m (415V)550A · 70m (415V)10A · 30m (415V)16A · 30m (415V)20A · 30m (415V)25A · 30m (415V)32A · 30m (415V)40A · 30m (415V)50A · 30m (415V)63A · 30m (415V)80A · 30m (415V)100A · 30m (415V)125A · 30m (415V)160A · 30m (415V)200A · 30m (415V)