32 Amp Cable Size at 35 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 32 A over 35 m (114.8 ft).
Copper Cable (≤3% Drop)4 mm²Drop: 10.38V (1.5%)
Aluminum Cable (≤3% Drop)6 mm²Drop: 11.41V (1.65%)
Voltage at Load679.6 VLine Loss: 575.2 W
Max Power & Breaker38.24 kW32A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A at 35m
| 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 | 27.68 V (4.01%) | 662.3 V | 45.65 V (6.62%) | 1534.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 16.61 V (2.41%) | 673.4 V | 27.39 V (3.97%) | 920.4 W | Drop High |
| 4 mm² | 32 A | 25 A | 10.38 V (1.5%) | 679.6 V | 17.12 V (2.48%) | 575.2 W | ✓ OK (≤3%) |
| 6 mm² | 41 A | 32 A | 6.92 V (1.0%) | 683.1 V | 11.41 V (1.65%) | 383.5 W | ✓ OK (≤3%) |
| 10 mm² | 57 A | 44 A | 4.15 V (0.6%) | 685.8 V | 6.85 V (0.99%) | 230.1 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 2.59 V (0.38%) | 687.4 V | 4.28 V (0.62%) | 143.8 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 1.66 V (0.24%) | 688.3 V | 2.74 V (0.4%) | 92.0 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.19 V (0.17%) | 688.8 V | 1.96 V (0.28%) | 65.7 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 0.83 V (0.12%) | 689.2 V | 1.37 V (0.2%) | 46.0 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.59 V (0.09%) | 689.4 V | 0.98 V (0.14%) | 32.9 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.44 V (0.06%) | 689.6 V | 0.72 V (0.1%) | 24.2 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.35 V (0.05%) | 689.7 V | 0.57 V (0.08%) | 19.2 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.28 V (0.04%) | 689.7 V | 0.46 V (0.07%) | 15.3 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.22 V (0.03%) | 689.8 V | 0.37 V (0.05%) | 12.4 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.17 V (0.03%) | 689.8 V | 0.29 V (0.04%) | 9.6 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.14 V (0.02%) | 689.9 V | 0.23 V (0.03%) | 7.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.1 V (0.02%) | 689.9 V | 0.17 V (0.02%) | 5.8 W | ✓ OK (≤3%) |
FAQ — 32 Amp Cable Size at 35 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 32A at 35 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 4 mm² copper cable for 32A over 35m at 690V (voltage drop: 10.38V or 1.5%).
What is the power capacity of 32A at 690V?
At unity power factor, 32A at 690V supports 38.24 kW with a standard 32A circuit breaker.
Related Lengths & Currents (690V)
32A · 5m (690V)32A · 10m (690V)32A · 15m (690V)32A · 20m (690V)32A · 25m (690V)32A · 30m (690V)32A · 40m (690V)32A · 45m (690V)32A · 50m (690V)32A · 60m (690V)32A · 70m (690V)10A · 35m (690V)16A · 35m (690V)20A · 35m (690V)25A · 35m (690V)40A · 35m (690V)50A · 35m (690V)63A · 35m (690V)80A · 35m (690V)100A · 35m (690V)125A · 35m (690V)160A · 35m (690V)200A · 35m (690V)