550 Amp Cable Size at 400 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 400 m (1312.3 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 10.2V (2.46%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 33.63V (8.1%)
Voltage at Load404.8 VLine Loss: 9710.2 W
Max Power & Breaker395.34 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 400m
| 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 | 5436.33 V (1309.96%) | 0.0 V | 8967.4 V (2160.82%) | 5178800.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 3261.8 V (785.98%) | 0.0 V | 5380.44 V (1296.49%) | 3107280.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2038.62 V (491.23%) | 0.0 V | 3362.78 V (810.31%) | 1942050.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1359.08 V (327.49%) | 0.0 V | 2241.85 V (540.21%) | 1294700.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 815.45 V (196.49%) | 0.0 V | 1345.11 V (324.12%) | 776820.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 509.66 V (122.81%) | 0.0 V | 840.69 V (202.58%) | 485512.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 326.18 V (78.6%) | 88.8 V | 538.04 V (129.65%) | 310728.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 232.99 V (56.14%) | 182.0 V | 384.32 V (92.61%) | 221948.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 163.09 V (39.3%) | 251.9 V | 269.02 V (64.82%) | 155364.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 116.49 V (28.07%) | 298.5 V | 192.16 V (46.3%) | 110974.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 85.84 V (20.68%) | 329.2 V | 141.59 V (34.12%) | 81770.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 67.95 V (16.37%) | 347.0 V | 112.09 V (27.01%) | 64735.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 54.36 V (13.1%) | 360.6 V | 89.67 V (21.61%) | 51788.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 44.08 V (10.62%) | 370.9 V | 72.71 V (17.52%) | 41990.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 33.98 V (8.19%) | 381.0 V | 56.05 V (13.51%) | 32367.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 27.18 V (6.55%) | 387.8 V | 44.84 V (10.8%) | 25894.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 20.39 V (4.91%) | 394.6 V | 33.63 V (8.1%) | 19420.5 W | ~ ≤5% |
FAQ — 550 Amp Cable Size at 400 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 550A at 400 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 550A over 400m at 415V (voltage drop: 10.2V or 2.46%).
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 · 400m (415V)16A · 400m (415V)20A · 400m (415V)25A · 400m (415V)32A · 400m (415V)40A · 400m (415V)50A · 400m (415V)63A · 400m (415V)80A · 400m (415V)100A · 400m (415V)125A · 400m (415V)160A · 400m (415V)200A · 400m (415V)