35 Amp Cable Size at 120 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 35 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)16 mm²Drop: 9.73V (2.34%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 10.27V (2.48%)
Voltage at Load405.3 VLine Loss: 589.8 W
Max Power & Breaker25.16 kW35A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 35A at 120m
| 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 | 103.78 V (25.01%) | 311.2 V | 171.2 V (41.25%) | 6291.6 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 62.27 V (15.0%) | 352.7 V | 102.72 V (24.75%) | 3775.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 38.92 V (9.38%) | 376.1 V | 64.2 V (15.47%) | 2359.3 W | Drop High |
| 6 mm² | 41 A | 32 A | 25.95 V (6.25%) | 389.1 V | 42.8 V (10.31%) | 1572.9 W | Drop High |
| 10 mm² | 57 A | 44 A | 15.57 V (3.75%) | 399.4 V | 25.68 V (6.19%) | 943.7 W | ~ ≤5% |
| 16 mm² | 76 A | 59 A | 9.73 V (2.34%) | 405.3 V | 16.05 V (3.87%) | 589.8 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 6.23 V (1.5%) | 408.8 V | 10.27 V (2.48%) | 377.5 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 4.45 V (1.07%) | 410.6 V | 7.34 V (1.77%) | 269.6 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 3.11 V (0.75%) | 411.9 V | 5.14 V (1.24%) | 188.7 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 2.22 V (0.54%) | 412.8 V | 3.67 V (0.88%) | 134.8 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 1.64 V (0.39%) | 413.4 V | 2.7 V (0.65%) | 99.3 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 1.3 V (0.31%) | 413.7 V | 2.14 V (0.52%) | 78.6 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 1.04 V (0.25%) | 414.0 V | 1.71 V (0.41%) | 62.9 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.84 V (0.2%) | 414.2 V | 1.39 V (0.33%) | 51.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.65 V (0.16%) | 414.4 V | 1.07 V (0.26%) | 39.3 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.52 V (0.13%) | 414.5 V | 0.86 V (0.21%) | 31.5 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.39 V (0.09%) | 414.6 V | 0.64 V (0.15%) | 23.6 W | ✓ OK (≤3%) |
FAQ — 35 Amp Cable Size at 120 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 35A at 120 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 16 mm² copper cable for 35A over 120m at 415V (voltage drop: 9.73V or 2.34%).
What is the power capacity of 35A at 415V?
At unity power factor, 35A at 415V supports 25.16 kW with a standard 35A circuit breaker.
Related Lengths & Currents (415V)
35A · 5m (415V)35A · 10m (415V)35A · 15m (415V)35A · 20m (415V)35A · 25m (415V)35A · 30m (415V)35A · 35m (415V)35A · 40m (415V)35A · 45m (415V)35A · 50m (415V)35A · 60m (415V)35A · 70m (415V)10A · 120m (415V)16A · 120m (415V)20A · 120m (415V)25A · 120m (415V)32A · 120m (415V)40A · 120m (415V)50A · 120m (415V)63A · 120m (415V)80A · 120m (415V)100A · 120m (415V)125A · 120m (415V)160A · 120m (415V)200A · 120m (415V)