32 Amp Cable Size at 45 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 32 A over 45 m (147.6 ft).
Copper Cable (≤3% Drop)6 mm²Drop: 8.9V (2.22%)
Aluminum Cable (≤3% Drop)10 mm²Drop: 8.8V (2.2%)
Voltage at Load391.1 VLine Loss: 493.1 W
Max Power & Breaker22.17 kW32A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A at 45m
| 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 | 35.58 V (8.9%) | 364.4 V | 58.7 V (14.67%) | 1972.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 21.35 V (5.34%) | 378.7 V | 35.22 V (8.8%) | 1183.3 W | Drop High |
| 4 mm² | 32 A | 25 A | 13.34 V (3.34%) | 386.7 V | 22.01 V (5.5%) | 739.6 W | ~ ≤5% |
| 6 mm² | 41 A | 32 A | 8.9 V (2.22%) | 391.1 V | 14.67 V (3.67%) | 493.1 W | ✓ OK (≤3%) |
| 10 mm² | 57 A | 44 A | 5.34 V (1.33%) | 394.7 V | 8.8 V (2.2%) | 295.8 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 3.34 V (0.83%) | 396.7 V | 5.5 V (1.38%) | 184.9 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 2.13 V (0.53%) | 397.9 V | 3.52 V (0.88%) | 118.3 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.52 V (0.38%) | 398.5 V | 2.52 V (0.63%) | 84.5 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.07 V (0.27%) | 398.9 V | 1.76 V (0.44%) | 59.2 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.76 V (0.19%) | 399.2 V | 1.26 V (0.31%) | 42.3 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.56 V (0.14%) | 399.4 V | 0.93 V (0.23%) | 31.1 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.44 V (0.11%) | 399.6 V | 0.73 V (0.18%) | 24.7 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.36 V (0.09%) | 399.6 V | 0.59 V (0.15%) | 19.7 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.29 V (0.07%) | 399.7 V | 0.48 V (0.12%) | 16.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.22 V (0.06%) | 399.8 V | 0.37 V (0.09%) | 12.3 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.18 V (0.04%) | 399.8 V | 0.29 V (0.07%) | 9.9 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.13 V (0.03%) | 399.9 V | 0.22 V (0.06%) | 7.4 W | ✓ OK (≤3%) |
FAQ — 32 Amp Cable Size at 45 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 32A at 45 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6 mm² copper cable for 32A over 45m at 400V (voltage drop: 8.9V or 2.22%).
What is the power capacity of 32A at 400V?
At unity power factor, 32A at 400V supports 22.17 kW with a standard 32A circuit breaker.
Related Lengths & Currents (400V)
32A · 5m (400V)32A · 10m (400V)32A · 15m (400V)32A · 20m (400V)32A · 25m (400V)32A · 30m (400V)32A · 35m (400V)32A · 40m (400V)32A · 50m (400V)32A · 60m (400V)32A · 70m (400V)10A · 45m (400V)16A · 45m (400V)20A · 45m (400V)25A · 45m (400V)40A · 45m (400V)50A · 45m (400V)63A · 45m (400V)80A · 45m (400V)100A · 45m (400V)125A · 45m (400V)160A · 45m (400V)200A · 45m (400V)