800 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 800 A over 90 m (295.3 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 3.33V (0.81%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 11.01V (2.65%)
Voltage at Load411.7 VLine Loss: 4622.4 W
Max Power & Breaker575.04 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 800A 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 | 1779.16 V (428.71%) | 0.0 V | 2934.79 V (707.18%) | 2465280.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1067.5 V (257.23%) | 0.0 V | 1760.87 V (424.31%) | 1479168.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 667.19 V (160.77%) | 0.0 V | 1100.55 V (265.19%) | 924480.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 444.79 V (107.18%) | 0.0 V | 733.7 V (176.79%) | 616320.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 266.87 V (64.31%) | 148.1 V | 440.22 V (106.08%) | 369792.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 166.8 V (40.19%) | 248.2 V | 275.14 V (66.3%) | 231120.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 106.75 V (25.72%) | 308.3 V | 176.09 V (42.43%) | 147916.8 W | Drop High |
| 35 mm² | 125 A | 97 A | 76.25 V (18.37%) | 338.8 V | 125.78 V (30.31%) | 105654.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 53.37 V (12.86%) | 361.6 V | 88.04 V (21.22%) | 73958.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 38.12 V (9.19%) | 376.9 V | 62.89 V (15.15%) | 52827.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 28.09 V (6.77%) | 386.9 V | 46.34 V (11.17%) | 38925.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 22.24 V (5.36%) | 392.8 V | 36.68 V (8.84%) | 30816.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 17.79 V (4.29%) | 397.2 V | 29.35 V (7.07%) | 24652.8 W | Drop High |
| 185 mm² | 353 A | 275 A | 14.43 V (3.48%) | 400.6 V | 23.8 V (5.73%) | 19988.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 11.12 V (2.68%) | 403.9 V | 18.34 V (4.42%) | 15408.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 8.9 V (2.14%) | 406.1 V | 14.67 V (3.54%) | 12326.4 W | Drop High |
| 400 mm² | 570 A | 445 A | 6.67 V (1.61%) | 408.3 V | 11.01 V (2.65%) | 9244.8 W | Drop High |
FAQ — 800 Amp Cable Size at 90 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 800A 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 800A over 90m at 415V (voltage drop: 3.33V or 0.81%).
What is the power capacity of 800A at 415V?
At unity power factor, 800A at 415V supports 575.04 kW with a standard 800A circuit breaker.
Related Lengths & Currents (415V)
800A · 5m (415V)800A · 10m (415V)800A · 15m (415V)800A · 20m (415V)800A · 25m (415V)800A · 30m (415V)800A · 35m (415V)800A · 40m (415V)800A · 45m (415V)800A · 50m (415V)800A · 60m (415V)800A · 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)