32 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 32 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)16 mm²Drop: 8.9V (2.14%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 9.39V (2.26%)
Voltage at Load406.1 VLine Loss: 493.1 W
Max Power & Breaker23.0 kW32A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A 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 | 94.89 V (22.86%) | 320.1 V | 156.52 V (37.72%) | 5259.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 56.93 V (13.72%) | 358.1 V | 93.91 V (22.63%) | 3155.6 W | Drop High |
| 4 mm² | 32 A | 25 A | 35.58 V (8.57%) | 379.4 V | 58.7 V (14.14%) | 1972.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 23.72 V (5.72%) | 391.3 V | 39.13 V (9.43%) | 1314.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 14.23 V (3.43%) | 400.8 V | 23.48 V (5.66%) | 788.9 W | ~ ≤5% |
| 16 mm² | 76 A | 59 A | 8.9 V (2.14%) | 406.1 V | 14.67 V (3.54%) | 493.1 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 5.69 V (1.37%) | 409.3 V | 9.39 V (2.26%) | 315.6 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 4.07 V (0.98%) | 410.9 V | 6.71 V (1.62%) | 225.4 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 2.85 V (0.69%) | 412.2 V | 4.7 V (1.13%) | 157.8 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 2.03 V (0.49%) | 413.0 V | 3.35 V (0.81%) | 112.7 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 1.5 V (0.36%) | 413.5 V | 2.47 V (0.6%) | 83.0 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 1.19 V (0.29%) | 413.8 V | 1.96 V (0.47%) | 65.7 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.95 V (0.23%) | 414.1 V | 1.57 V (0.38%) | 52.6 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.77 V (0.19%) | 414.2 V | 1.27 V (0.31%) | 42.6 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.59 V (0.14%) | 414.4 V | 0.98 V (0.24%) | 32.9 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.47 V (0.11%) | 414.5 V | 0.78 V (0.19%) | 26.3 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.36 V (0.09%) | 414.6 V | 0.59 V (0.14%) | 19.7 W | ✓ OK (≤3%) |
FAQ — 32 Amp Cable Size at 120 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 32A 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 32A over 120m at 415V (voltage drop: 8.9V or 2.14%).
What is the power capacity of 32A at 415V?
At unity power factor, 32A at 415V supports 23.0 kW with a standard 32A circuit breaker.
Related Lengths & Currents (415V)
32A · 5m (415V)32A · 10m (415V)32A · 15m (415V)32A · 20m (415V)32A · 25m (415V)32A · 30m (415V)32A · 35m (415V)32A · 40m (415V)32A · 45m (415V)32A · 50m (415V)32A · 60m (415V)32A · 70m (415V)10A · 120m (415V)16A · 120m (415V)20A · 120m (415V)25A · 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)