16 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 16 A over 80 m (262.5 ft).
Copper Cable (≤3% Drop)2.5 mm²Drop: 18.98V (2.75%)
Aluminum Cable (≤3% Drop)4 mm²Drop: 19.57V (2.84%)
Voltage at Load671.0 VLine Loss: 525.9 W
Max Power & Breaker19.12 kW16A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 16A 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 | 31.63 V (4.58%) | 658.4 V | 52.17 V (7.56%) | 876.5 W | ~ ≤5% |
| 2.5 mm² | 24 A | 18 A | 18.98 V (2.75%) | 671.0 V | 31.3 V (4.54%) | 525.9 W | ✓ OK (≤3%) |
| 4 mm² | 32 A | 25 A | 11.86 V (1.72%) | 678.1 V | 19.57 V (2.84%) | 328.7 W | ✓ OK (≤3%) |
| 6 mm² | 41 A | 32 A | 7.91 V (1.15%) | 682.1 V | 13.04 V (1.89%) | 219.1 W | ✓ OK (≤3%) |
| 10 mm² | 57 A | 44 A | 4.74 V (0.69%) | 685.3 V | 7.83 V (1.13%) | 131.5 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 2.97 V (0.43%) | 687.0 V | 4.89 V (0.71%) | 82.2 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 1.9 V (0.28%) | 688.1 V | 3.13 V (0.45%) | 52.6 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.36 V (0.2%) | 688.6 V | 2.24 V (0.32%) | 37.6 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 0.95 V (0.14%) | 689.1 V | 1.57 V (0.23%) | 26.3 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.68 V (0.1%) | 689.3 V | 1.12 V (0.16%) | 18.8 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.5 V (0.07%) | 689.5 V | 0.82 V (0.12%) | 13.8 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.4 V (0.06%) | 689.6 V | 0.65 V (0.09%) | 11.0 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.32 V (0.05%) | 689.7 V | 0.52 V (0.08%) | 8.8 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.26 V (0.04%) | 689.7 V | 0.42 V (0.06%) | 7.1 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.2 V (0.03%) | 689.8 V | 0.33 V (0.05%) | 5.5 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.16 V (0.02%) | 689.8 V | 0.26 V (0.04%) | 4.4 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.12 V (0.02%) | 689.9 V | 0.2 V (0.03%) | 3.3 W | ✓ OK (≤3%) |
FAQ — 16 Amp Cable Size at 80 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 16A at 80 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2.5 mm² copper cable for 16A over 80m at 690V (voltage drop: 18.98V or 2.75%).
What is the power capacity of 16A at 690V?
At unity power factor, 16A at 690V supports 19.12 kW with a standard 16A circuit breaker.
Related Lengths & Currents (690V)
16A · 5m (690V)16A · 10m (690V)16A · 15m (690V)16A · 20m (690V)16A · 25m (690V)16A · 30m (690V)16A · 35m (690V)16A · 40m (690V)16A · 45m (690V)16A · 50m (690V)16A · 60m (690V)16A · 70m (690V)10A · 80m (690V)20A · 80m (690V)25A · 80m (690V)32A · 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)