900 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 900 A over 400 m (1312.3 ft).
Copper Cable (≤3% Drop)3× 400 mm²Drop: 11.12V (2.68%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 55.03V (13.26%)
Voltage at Load403.9 VLine Loss: 17334.0 W
Max Power & Breaker646.92 kW1000A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 900A 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 | 8895.81 V (2143.57%) | 0.0 V | 14673.93 V (3535.89%) | 13867200.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 5337.49 V (1286.14%) | 0.0 V | 8804.36 V (2121.53%) | 8320320.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 3335.93 V (803.84%) | 0.0 V | 5502.73 V (1325.96%) | 5200200.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 2223.95 V (535.89%) | 0.0 V | 3668.48 V (883.97%) | 3466800.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1334.37 V (321.54%) | 0.0 V | 2201.09 V (530.38%) | 2080080.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 833.98 V (200.96%) | 0.0 V | 1375.68 V (331.49%) | 1300050.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 533.75 V (128.61%) | 0.0 V | 880.44 V (212.15%) | 832032.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 381.25 V (91.87%) | 33.8 V | 628.88 V (151.54%) | 594308.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 266.87 V (64.31%) | 148.1 V | 440.22 V (106.08%) | 416016.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 190.62 V (45.93%) | 224.4 V | 314.44 V (75.77%) | 297154.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 140.46 V (33.85%) | 274.5 V | 231.69 V (55.83%) | 218955.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 111.2 V (26.79%) | 303.8 V | 183.42 V (44.2%) | 173340.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 88.96 V (21.44%) | 326.0 V | 146.74 V (35.36%) | 138672.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 72.13 V (17.38%) | 342.9 V | 118.98 V (28.67%) | 112436.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 55.6 V (13.4%) | 359.4 V | 91.71 V (22.1%) | 86670.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 44.48 V (10.72%) | 370.5 V | 73.37 V (17.68%) | 69336.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 33.36 V (8.04%) | 381.6 V | 55.03 V (13.26%) | 52002.0 W | Drop High |
FAQ — 900 Amp Cable Size at 400 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 900A at 400 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 3× 400 mm² copper cable for 900A over 400m at 415V (voltage drop: 11.12V or 2.68%).
What is the power capacity of 900A at 415V?
At unity power factor, 900A at 415V supports 646.92 kW with a standard 1000A circuit breaker.
Related Lengths & Currents (415V)
900A · 5m (415V)900A · 10m (415V)900A · 15m (415V)900A · 20m (415V)900A · 25m (415V)900A · 30m (415V)900A · 35m (415V)900A · 40m (415V)900A · 45m (415V)900A · 50m (415V)900A · 60m (415V)900A · 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)