800 Amp Cable Size at 100 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 100 m (328.1 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 3.71V (0.9%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 12.23V (2.95%)
Voltage at Load411.3 VLine Loss: 5136.0 W
Max Power & Breaker575.04 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 800A at 100m
| 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 | 1976.85 V (476.35%) | 0.0 V | 3260.87 V (785.75%) | 2739200.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1186.11 V (285.81%) | 0.0 V | 1956.52 V (471.45%) | 1643520.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 741.32 V (178.63%) | 0.0 V | 1222.83 V (294.66%) | 1027200.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 494.21 V (119.09%) | 0.0 V | 815.22 V (196.44%) | 684800.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 296.53 V (71.45%) | 118.5 V | 489.13 V (117.86%) | 410880.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 185.33 V (44.66%) | 229.7 V | 305.71 V (73.66%) | 256800.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 118.61 V (28.58%) | 296.4 V | 195.65 V (47.15%) | 164352.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 84.72 V (20.41%) | 330.3 V | 139.75 V (33.68%) | 117394.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 59.31 V (14.29%) | 355.7 V | 97.83 V (23.57%) | 82176.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 42.36 V (10.21%) | 372.6 V | 69.88 V (16.84%) | 58697.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 31.21 V (7.52%) | 383.8 V | 51.49 V (12.41%) | 43250.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 24.71 V (5.95%) | 390.3 V | 40.76 V (9.82%) | 34240.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 19.77 V (4.76%) | 395.2 V | 32.61 V (7.86%) | 27392.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 16.03 V (3.86%) | 399.0 V | 26.44 V (6.37%) | 22209.7 W | Drop High |
| 240 mm² | 415 A | 324 A | 12.36 V (2.98%) | 402.6 V | 20.38 V (4.91%) | 17120.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 9.88 V (2.38%) | 405.1 V | 16.3 V (3.93%) | 13696.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 7.41 V (1.79%) | 407.6 V | 12.23 V (2.95%) | 10272.0 W | Drop High |
FAQ — 800 Amp Cable Size at 100 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 800A at 100 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 100m at 415V (voltage drop: 3.71V or 0.9%).
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 · 100m (415V)16A · 100m (415V)20A · 100m (415V)25A · 100m (415V)32A · 100m (415V)40A · 100m (415V)50A · 100m (415V)63A · 100m (415V)80A · 100m (415V)100A · 100m (415V)125A · 100m (415V)160A · 100m (415V)200A · 100m (415V)