32 Amp Cable Size at 80 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 80 m (262.5 ft).
Copper Cable (≤3% Drop)6 mm²Drop: 15.81V (2.29%)
Aluminum Cable (≤3% Drop)10 mm²Drop: 15.65V (2.27%)
Voltage at Load674.2 VLine Loss: 876.5 W
Max Power & Breaker38.24 kW32A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A at 80m
| 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 | 63.26 V (9.17%) | 626.7 V | 104.35 V (15.12%) | 3506.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 37.96 V (5.5%) | 652.0 V | 62.61 V (9.07%) | 2103.7 W | Drop High |
| 4 mm² | 32 A | 25 A | 23.72 V (3.44%) | 666.3 V | 39.13 V (5.67%) | 1314.8 W | ~ ≤5% |
| 6 mm² | 41 A | 32 A | 15.81 V (2.29%) | 674.2 V | 26.09 V (3.78%) | 876.5 W | ✓ OK (≤3%) |
| 10 mm² | 57 A | 44 A | 9.49 V (1.38%) | 680.5 V | 15.65 V (2.27%) | 525.9 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 5.93 V (0.86%) | 684.1 V | 9.78 V (1.42%) | 328.7 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 3.8 V (0.55%) | 686.2 V | 6.26 V (0.91%) | 210.4 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 2.71 V (0.39%) | 687.3 V | 4.47 V (0.65%) | 150.3 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.9 V (0.28%) | 688.1 V | 3.13 V (0.45%) | 105.2 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 1.36 V (0.2%) | 688.6 V | 2.24 V (0.32%) | 75.1 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 1.0 V (0.14%) | 689.0 V | 1.65 V (0.24%) | 55.4 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.79 V (0.11%) | 689.2 V | 1.3 V (0.19%) | 43.8 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.63 V (0.09%) | 689.4 V | 1.04 V (0.15%) | 35.1 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.51 V (0.07%) | 689.5 V | 0.85 V (0.12%) | 28.4 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.4 V (0.06%) | 689.6 V | 0.65 V (0.09%) | 21.9 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.32 V (0.05%) | 689.7 V | 0.52 V (0.08%) | 17.5 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.24 V (0.03%) | 689.8 V | 0.39 V (0.06%) | 13.1 W | ✓ OK (≤3%) |
FAQ — 32 Amp Cable Size at 80 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 32A at 80 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6 mm² copper cable for 32A over 80m at 690V (voltage drop: 15.81V or 2.29%).
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 · 80m (690V)16A · 80m (690V)20A · 80m (690V)25A · 80m (690V)40A · 80m (690V)50A · 80m (690V)63A · 80m (690V)80A · 80m (690V)100A · 80m (690V)125A · 80m (690V)160A · 80m (690V)200A · 80m (690V)