63 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 63 A over 35 m (114.8 ft).
Copper Cable (≤3% Drop)16 mm²Drop: 5.11V (0.74%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 5.39V (0.78%)
Voltage at Load684.9 VLine Loss: 557.4 W
Max Power & Breaker75.29 kW63A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 63A 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 | 54.49 V (7.9%) | 635.5 V | 89.88 V (13.03%) | 5945.6 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 32.69 V (4.74%) | 657.3 V | 53.93 V (7.82%) | 3567.3 W | Drop High |
| 4 mm² | 32 A | 25 A | 20.43 V (2.96%) | 669.6 V | 33.7 V (4.88%) | 2229.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 13.62 V (1.97%) | 676.4 V | 22.47 V (3.26%) | 1486.4 W | Drop High |
| 10 mm² | 57 A | 44 A | 8.17 V (1.18%) | 681.8 V | 13.48 V (1.95%) | 891.8 W | Drop High |
| 16 mm² | 76 A | 59 A | 5.11 V (0.74%) | 684.9 V | 8.43 V (1.22%) | 557.4 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 3.27 V (0.47%) | 686.7 V | 5.39 V (0.78%) | 356.7 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 2.34 V (0.34%) | 687.7 V | 3.85 V (0.56%) | 254.8 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.63 V (0.24%) | 688.4 V | 2.7 V (0.39%) | 178.4 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 1.17 V (0.17%) | 688.8 V | 1.93 V (0.28%) | 127.4 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.86 V (0.12%) | 689.1 V | 1.42 V (0.21%) | 93.9 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.68 V (0.1%) | 689.3 V | 1.12 V (0.16%) | 74.3 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.54 V (0.08%) | 689.5 V | 0.9 V (0.13%) | 59.5 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.44 V (0.06%) | 689.6 V | 0.73 V (0.11%) | 48.2 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.34 V (0.05%) | 689.7 V | 0.56 V (0.08%) | 37.2 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.27 V (0.04%) | 689.7 V | 0.45 V (0.07%) | 29.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.2 V (0.03%) | 689.8 V | 0.34 V (0.05%) | 22.3 W | ✓ OK (≤3%) |
FAQ — 63 Amp Cable Size at 35 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 63A at 35 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 16 mm² copper cable for 63A over 35m at 690V (voltage drop: 5.11V or 0.74%).
What is the power capacity of 63A at 690V?
At unity power factor, 63A at 690V supports 75.29 kW with a standard 63A circuit breaker.
Related Lengths & Currents (690V)
63A · 5m (690V)63A · 10m (690V)63A · 15m (690V)63A · 20m (690V)63A · 25m (690V)63A · 30m (690V)63A · 40m (690V)63A · 45m (690V)63A · 50m (690V)63A · 60m (690V)63A · 70m (690V)10A · 35m (690V)16A · 35m (690V)20A · 35m (690V)25A · 35m (690V)32A · 35m (690V)40A · 35m (690V)50A · 35m (690V)80A · 35m (690V)100A · 35m (690V)125A · 35m (690V)160A · 35m (690V)200A · 35m (690V)