100 Amp Cable Size at 35 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 100 A over 35 m (114.8 ft).
Copper Cable (≤3% Drop)25 mm²Drop: 5.19V (1.25%)
Aluminum Cable (≤3% Drop)50 mm²Drop: 4.28V (1.03%)
Voltage at Load409.8 VLine Loss: 898.8 W
Max Power & Breaker71.88 kW100A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 100A at 35m
| 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 | 86.49 V (20.84%) | 328.5 V | 142.66 V (34.38%) | 14980.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 51.89 V (12.5%) | 363.1 V | 85.6 V (20.63%) | 8988.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 32.43 V (7.82%) | 382.6 V | 53.5 V (12.89%) | 5617.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 21.62 V (5.21%) | 393.4 V | 35.67 V (8.59%) | 3745.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 12.97 V (3.13%) | 402.0 V | 21.4 V (5.16%) | 2247.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 8.11 V (1.95%) | 406.9 V | 13.37 V (3.22%) | 1404.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 5.19 V (1.25%) | 409.8 V | 8.56 V (2.06%) | 898.8 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 3.71 V (0.89%) | 411.3 V | 6.11 V (1.47%) | 642.0 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 2.59 V (0.63%) | 412.4 V | 4.28 V (1.03%) | 449.4 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 1.85 V (0.45%) | 413.1 V | 3.06 V (0.74%) | 321.0 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 1.37 V (0.33%) | 413.6 V | 2.25 V (0.54%) | 236.5 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 1.08 V (0.26%) | 413.9 V | 1.78 V (0.43%) | 187.2 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.86 V (0.21%) | 414.1 V | 1.43 V (0.34%) | 149.8 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.7 V (0.17%) | 414.3 V | 1.16 V (0.28%) | 121.5 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.54 V (0.13%) | 414.5 V | 0.89 V (0.21%) | 93.6 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.43 V (0.1%) | 414.6 V | 0.71 V (0.17%) | 74.9 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.32 V (0.08%) | 414.7 V | 0.53 V (0.13%) | 56.2 W | ✓ OK (≤3%) |
FAQ — 100 Amp Cable Size at 35 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 100A at 35 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 25 mm² copper cable for 100A over 35m at 415V (voltage drop: 5.19V or 1.25%).
What is the power capacity of 100A at 415V?
At unity power factor, 100A at 415V supports 71.88 kW with a standard 100A circuit breaker.
Related Lengths & Currents (415V)
100A · 5m (415V)100A · 10m (415V)100A · 15m (415V)100A · 20m (415V)100A · 25m (415V)100A · 30m (415V)100A · 40m (415V)100A · 45m (415V)100A · 50m (415V)100A · 60m (415V)100A · 70m (415V)10A · 35m (415V)16A · 35m (415V)20A · 35m (415V)25A · 35m (415V)32A · 35m (415V)40A · 35m (415V)50A · 35m (415V)63A · 35m (415V)80A · 35m (415V)125A · 35m (415V)160A · 35m (415V)200A · 35m (415V)