32 Amp Cable Size at 5 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 5 m (16.4 ft).
Copper Cable (≤3% Drop)4 mm²Drop: 1.48V (0.36%)
Aluminum Cable (≤3% Drop)6 mm²Drop: 1.63V (0.39%)
Voltage at Load413.5 VLine Loss: 82.2 W
Max Power & Breaker23.0 kW32A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A at 5m
| 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 | 3.95 V (0.95%) | 411.0 V | 6.52 V (1.57%) | 219.1 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2.37 V (0.57%) | 412.6 V | 3.91 V (0.94%) | 131.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 1.48 V (0.36%) | 413.5 V | 2.45 V (0.59%) | 82.2 W | ✓ OK (≤3%) |
| 6 mm² | 41 A | 32 A | 0.99 V (0.24%) | 414.0 V | 1.63 V (0.39%) | 54.8 W | ✓ OK (≤3%) |
| 10 mm² | 57 A | 44 A | 0.59 V (0.14%) | 414.4 V | 0.98 V (0.24%) | 32.9 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 0.37 V (0.09%) | 414.6 V | 0.61 V (0.15%) | 20.5 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 0.24 V (0.06%) | 414.8 V | 0.39 V (0.09%) | 13.1 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 0.17 V (0.04%) | 414.8 V | 0.28 V (0.07%) | 9.4 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 0.12 V (0.03%) | 414.9 V | 0.2 V (0.05%) | 6.6 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.08 V (0.02%) | 414.9 V | 0.14 V (0.03%) | 4.7 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.06 V (0.02%) | 414.9 V | 0.1 V (0.02%) | 3.5 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.05 V (0.01%) | 415.0 V | 0.08 V (0.02%) | 2.7 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.04 V (0.01%) | 415.0 V | 0.07 V (0.02%) | 2.2 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.03 V (0.01%) | 415.0 V | 0.05 V (0.01%) | 1.8 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.02 V (0.01%) | 415.0 V | 0.04 V (0.01%) | 1.4 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.02 V (0.0%) | 415.0 V | 0.03 V (0.01%) | 1.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.01 V (0.0%) | 415.0 V | 0.02 V (0.01%) | 0.8 W | ✓ OK (≤3%) |
FAQ — 32 Amp Cable Size at 5 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 32A at 5 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 4 mm² copper cable for 32A over 5m at 415V (voltage drop: 1.48V or 0.36%).
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 · 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 · 5m (415V)16A · 5m (415V)20A · 5m (415V)25A · 5m (415V)40A · 5m (415V)50A · 5m (415V)63A · 5m (415V)80A · 5m (415V)100A · 5m (415V)125A · 5m (415V)160A · 5m (415V)200A · 5m (415V)