900 Amp Cable Size at 45 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 45 m (147.6 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 1.88V (0.45%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 6.19V (1.49%)
Voltage at Load413.1 VLine Loss: 2925.1 W
Max Power & Breaker646.92 kW1000A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 900A at 45m
| 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 | 1000.78 V (241.15%) | 0.0 V | 1650.82 V (397.79%) | 1560060.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 600.47 V (144.69%) | 0.0 V | 990.49 V (238.67%) | 936036.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 375.29 V (90.43%) | 39.7 V | 619.06 V (149.17%) | 585022.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 250.19 V (60.29%) | 164.8 V | 412.7 V (99.45%) | 390015.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 150.12 V (36.17%) | 264.9 V | 247.62 V (59.67%) | 234009.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 93.82 V (22.61%) | 321.2 V | 154.76 V (37.29%) | 146255.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 60.05 V (14.47%) | 355.0 V | 99.05 V (23.87%) | 93603.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 42.89 V (10.34%) | 372.1 V | 70.75 V (17.05%) | 66859.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 30.02 V (7.23%) | 385.0 V | 49.52 V (11.93%) | 46801.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 21.45 V (5.17%) | 393.6 V | 35.37 V (8.52%) | 33429.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 15.8 V (3.81%) | 399.2 V | 26.07 V (6.28%) | 24632.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 12.51 V (3.01%) | 402.5 V | 20.64 V (4.97%) | 19500.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 10.01 V (2.41%) | 405.0 V | 16.51 V (3.98%) | 15600.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 8.11 V (1.96%) | 406.9 V | 13.39 V (3.23%) | 12649.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 6.25 V (1.51%) | 408.7 V | 10.32 V (2.49%) | 9750.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 5.0 V (1.21%) | 410.0 V | 8.25 V (1.99%) | 7800.3 W | Drop High |
| 400 mm² | 570 A | 445 A | 3.75 V (0.9%) | 411.2 V | 6.19 V (1.49%) | 5850.2 W | Drop High |
FAQ — 900 Amp Cable Size at 45 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 900A at 45 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 45m at 415V (voltage drop: 1.88V or 0.45%).
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 · 50m (415V)900A · 60m (415V)900A · 70m (415V)10A · 45m (415V)16A · 45m (415V)20A · 45m (415V)25A · 45m (415V)32A · 45m (415V)40A · 45m (415V)50A · 45m (415V)63A · 45m (415V)80A · 45m (415V)100A · 45m (415V)125A · 45m (415V)160A · 45m (415V)200A · 45m (415V)