900 Amp Cable Size at 40 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 900 A over 40 m (131.2 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 1.67V (0.41%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 5.5V (1.38%)
Voltage at Load398.3 VLine Loss: 2600.1 W
Max Power & Breaker623.54 kW1000A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 900A at 40m
| 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 | 889.58 V (222.4%) | 0.0 V | 1467.39 V (366.85%) | 1386720.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 533.75 V (133.44%) | 0.0 V | 880.44 V (220.11%) | 832032.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 333.59 V (83.4%) | 66.4 V | 550.27 V (137.57%) | 520020.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 222.4 V (55.6%) | 177.6 V | 366.85 V (91.71%) | 346680.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 133.44 V (33.36%) | 266.6 V | 220.11 V (55.03%) | 208008.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 83.4 V (20.85%) | 316.6 V | 137.57 V (34.39%) | 130005.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 53.37 V (13.34%) | 346.6 V | 88.04 V (22.01%) | 83203.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 38.12 V (9.53%) | 361.9 V | 62.89 V (15.72%) | 59430.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 26.69 V (6.67%) | 373.3 V | 44.02 V (11.01%) | 41601.6 W | Drop High |
| 70 mm² | 192 A | 150 A | 19.06 V (4.77%) | 380.9 V | 31.44 V (7.86%) | 29715.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 14.05 V (3.51%) | 386.0 V | 23.17 V (5.79%) | 21895.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 11.12 V (2.78%) | 388.9 V | 18.34 V (4.59%) | 17334.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 8.9 V (2.22%) | 391.1 V | 14.67 V (3.67%) | 13867.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 7.21 V (1.8%) | 392.8 V | 11.9 V (2.97%) | 11243.7 W | Drop High |
| 240 mm² | 415 A | 324 A | 5.56 V (1.39%) | 394.4 V | 9.17 V (2.29%) | 8667.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 4.45 V (1.11%) | 395.6 V | 7.34 V (1.83%) | 6933.6 W | Drop High |
| 400 mm² | 570 A | 445 A | 3.34 V (0.83%) | 396.7 V | 5.5 V (1.38%) | 5200.2 W | Drop High |
FAQ — 900 Amp Cable Size at 40 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 900A at 40 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 900A over 40m at 400V (voltage drop: 1.67V or 0.41%).
What is the power capacity of 900A at 400V?
At unity power factor, 900A at 400V supports 623.54 kW with a standard 1000A circuit breaker.
Related Lengths & Currents (400V)
900A · 5m (400V)900A · 10m (400V)900A · 15m (400V)900A · 20m (400V)900A · 25m (400V)900A · 30m (400V)900A · 35m (400V)900A · 45m (400V)900A · 50m (400V)900A · 60m (400V)900A · 70m (400V)10A · 40m (400V)16A · 40m (400V)20A · 40m (400V)25A · 40m (400V)32A · 40m (400V)40A · 40m (400V)50A · 40m (400V)63A · 40m (400V)80A · 40m (400V)100A · 40m (400V)125A · 40m (400V)160A · 40m (400V)200A · 40m (400V)