32 Amp Cable Size at 350 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 350 m (1148.3 ft).
Copper Cable (≤3% Drop)25 mm²Drop: 16.61V (2.41%)
Aluminum Cable (≤3% Drop)35 mm²Drop: 19.57V (2.84%)
Voltage at Load673.4 VLine Loss: 920.4 W
Max Power & Breaker38.24 kW32A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A at 350m
| 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 | 276.76 V (40.11%) | 413.2 V | 456.52 V (66.16%) | 15339.5 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 166.06 V (24.07%) | 523.9 V | 273.91 V (39.7%) | 9203.7 W | Drop High |
| 4 mm² | 32 A | 25 A | 103.78 V (15.04%) | 586.2 V | 171.2 V (24.81%) | 5752.3 W | Drop High |
| 6 mm² | 41 A | 32 A | 69.19 V (10.03%) | 620.8 V | 114.13 V (16.54%) | 3834.9 W | Drop High |
| 10 mm² | 57 A | 44 A | 41.51 V (6.02%) | 648.5 V | 68.48 V (9.92%) | 2300.9 W | Drop High |
| 16 mm² | 76 A | 59 A | 25.95 V (3.76%) | 664.1 V | 42.8 V (6.2%) | 1438.1 W | ~ ≤5% |
| 25 mm² | 101 A | 78 A | 16.61 V (2.41%) | 673.4 V | 27.39 V (3.97%) | 920.4 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 11.86 V (1.72%) | 678.1 V | 19.57 V (2.84%) | 657.4 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 8.3 V (1.2%) | 681.7 V | 13.7 V (1.98%) | 460.2 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 5.93 V (0.86%) | 684.1 V | 9.78 V (1.42%) | 328.7 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 4.37 V (0.63%) | 685.6 V | 7.21 V (1.04%) | 242.2 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 3.46 V (0.5%) | 686.5 V | 5.71 V (0.83%) | 191.7 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 2.77 V (0.4%) | 687.2 V | 4.57 V (0.66%) | 153.4 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 2.24 V (0.33%) | 687.8 V | 3.7 V (0.54%) | 124.4 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 1.73 V (0.25%) | 688.3 V | 2.85 V (0.41%) | 95.9 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.38 V (0.2%) | 688.6 V | 2.28 V (0.33%) | 76.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 1.04 V (0.15%) | 689.0 V | 1.71 V (0.25%) | 57.5 W | ✓ OK (≤3%) |
FAQ — 32 Amp Cable Size at 350 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 32A at 350 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 25 mm² copper cable for 32A over 350m at 690V (voltage drop: 16.61V or 2.41%).
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 · 35m (690V)32A · 40m (690V)32A · 45m (690V)32A · 50m (690V)32A · 60m (690V)32A · 70m (690V)10A · 350m (690V)16A · 350m (690V)20A · 350m (690V)25A · 350m (690V)40A · 350m (690V)50A · 350m (690V)63A · 350m (690V)80A · 350m (690V)100A · 350m (690V)125A · 350m (690V)160A · 350m (690V)200A · 350m (690V)