100 Amp Cable Size at 10 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 10 m (32.8 ft).
Copper Cable (≤3% Drop)25 mm²Drop: 1.48V (0.36%)
Aluminum Cable (≤3% Drop)50 mm²Drop: 1.22V (0.29%)
Voltage at Load413.5 VLine Loss: 256.8 W
Max Power & Breaker71.88 kW100A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 100A at 10m
| 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 | 24.71 V (5.95%) | 390.3 V | 40.76 V (9.82%) | 4280.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 14.83 V (3.57%) | 400.2 V | 24.46 V (5.89%) | 2568.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 9.27 V (2.23%) | 405.7 V | 15.29 V (3.68%) | 1605.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 6.18 V (1.49%) | 408.8 V | 10.19 V (2.46%) | 1070.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 3.71 V (0.89%) | 411.3 V | 6.11 V (1.47%) | 642.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 2.32 V (0.56%) | 412.7 V | 3.82 V (0.92%) | 401.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 1.48 V (0.36%) | 413.5 V | 2.45 V (0.59%) | 256.8 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.06 V (0.26%) | 413.9 V | 1.75 V (0.42%) | 183.4 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 0.74 V (0.18%) | 414.3 V | 1.22 V (0.29%) | 128.4 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.53 V (0.13%) | 414.5 V | 0.87 V (0.21%) | 91.7 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.39 V (0.09%) | 414.6 V | 0.64 V (0.16%) | 67.6 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.31 V (0.07%) | 414.7 V | 0.51 V (0.12%) | 53.5 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.25 V (0.06%) | 414.8 V | 0.41 V (0.1%) | 42.8 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.2 V (0.05%) | 414.8 V | 0.33 V (0.08%) | 34.7 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.15 V (0.04%) | 414.8 V | 0.25 V (0.06%) | 26.8 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.12 V (0.03%) | 414.9 V | 0.2 V (0.05%) | 21.4 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.09 V (0.02%) | 414.9 V | 0.15 V (0.04%) | 16.1 W | ✓ OK (≤3%) |
FAQ — 100 Amp Cable Size at 10 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 100A at 10 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 10m at 415V (voltage drop: 1.48V or 0.36%).
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 · 15m (415V)100A · 20m (415V)100A · 25m (415V)100A · 30m (415V)100A · 35m (415V)100A · 40m (415V)100A · 45m (415V)100A · 50m (415V)100A · 60m (415V)100A · 70m (415V)10A · 10m (415V)16A · 10m (415V)20A · 10m (415V)25A · 10m (415V)32A · 10m (415V)40A · 10m (415V)50A · 10m (415V)63A · 10m (415V)80A · 10m (415V)125A · 10m (415V)160A · 10m (415V)200A · 10m (415V)