900 Amp Cable Size at 90 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 90 m (295.3 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 3.75V (0.91%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 12.38V (2.98%)
Voltage at Load411.2 VLine Loss: 5850.2 W
Max Power & Breaker646.92 kW1000A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 900A at 90m
| 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 | 2001.56 V (482.3%) | 0.0 V | 3301.64 V (795.57%) | 3120120.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1200.93 V (289.38%) | 0.0 V | 1980.98 V (477.34%) | 1872072.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 750.58 V (180.86%) | 0.0 V | 1238.11 V (298.34%) | 1170045.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 500.39 V (120.58%) | 0.0 V | 825.41 V (198.89%) | 780030.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 300.23 V (72.35%) | 114.8 V | 495.25 V (119.34%) | 468018.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 187.65 V (45.22%) | 227.4 V | 309.53 V (74.59%) | 292511.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 120.09 V (28.94%) | 294.9 V | 198.1 V (47.73%) | 187207.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 85.78 V (20.67%) | 329.2 V | 141.5 V (34.1%) | 133719.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 60.05 V (14.47%) | 355.0 V | 99.05 V (23.87%) | 93603.6 W | Drop High |
| 70 mm² | 192 A | 150 A | 42.89 V (10.34%) | 372.1 V | 70.75 V (17.05%) | 66859.7 W | Drop High |
| 95 mm² | 232 A | 181 A | 31.6 V (7.62%) | 383.4 V | 52.13 V (12.56%) | 49265.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 25.02 V (6.03%) | 390.0 V | 41.27 V (9.94%) | 39001.5 W | Drop High |
| 150 mm² | 309 A | 241 A | 20.02 V (4.82%) | 395.0 V | 33.02 V (7.96%) | 31201.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 16.23 V (3.91%) | 398.8 V | 26.77 V (6.45%) | 25298.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 12.51 V (3.01%) | 402.5 V | 20.64 V (4.97%) | 19500.7 W | Drop High |
| 300 mm² | 477 A | 372 A | 10.01 V (2.41%) | 405.0 V | 16.51 V (3.98%) | 15600.6 W | Drop High |
| 400 mm² | 570 A | 445 A | 7.51 V (1.81%) | 407.5 V | 12.38 V (2.98%) | 11700.4 W | Drop High |
FAQ — 900 Amp Cable Size at 90 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 900A at 90 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 900A over 90m at 415V (voltage drop: 3.75V or 0.91%).
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 · 90m (415V)16A · 90m (415V)20A · 90m (415V)25A · 90m (415V)32A · 90m (415V)40A · 90m (415V)50A · 90m (415V)63A · 90m (415V)80A · 90m (415V)100A · 90m (415V)125A · 90m (415V)160A · 90m (415V)200A · 90m (415V)