63 Amp Cable Size at 15 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 15 m (49.2 ft).
Copper Cable (≤3% Drop)16 mm²Drop: 2.19V (0.32%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 2.31V (0.33%)
Voltage at Load687.8 VLine Loss: 238.9 W
Max Power & Breaker75.29 kW63A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 63A at 15m
| 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 | 23.35 V (3.38%) | 666.6 V | 38.52 V (5.58%) | 2548.1 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 14.01 V (2.03%) | 676.0 V | 23.11 V (3.35%) | 1528.9 W | Drop High |
| 4 mm² | 32 A | 25 A | 8.76 V (1.27%) | 681.2 V | 14.44 V (2.09%) | 955.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 5.84 V (0.85%) | 684.2 V | 9.63 V (1.4%) | 637.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 3.5 V (0.51%) | 686.5 V | 5.78 V (0.84%) | 382.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 2.19 V (0.32%) | 687.8 V | 3.61 V (0.52%) | 238.9 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 1.4 V (0.2%) | 688.6 V | 2.31 V (0.33%) | 152.9 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.0 V (0.15%) | 689.0 V | 1.65 V (0.24%) | 109.2 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 0.7 V (0.1%) | 689.3 V | 1.16 V (0.17%) | 76.4 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.5 V (0.07%) | 689.5 V | 0.83 V (0.12%) | 54.6 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.37 V (0.05%) | 689.6 V | 0.61 V (0.09%) | 40.2 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.29 V (0.04%) | 689.7 V | 0.48 V (0.07%) | 31.9 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.23 V (0.03%) | 689.8 V | 0.39 V (0.06%) | 25.5 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.19 V (0.03%) | 689.8 V | 0.31 V (0.05%) | 20.7 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.15 V (0.02%) | 689.9 V | 0.24 V (0.03%) | 15.9 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.12 V (0.02%) | 689.9 V | 0.19 V (0.03%) | 12.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.09 V (0.01%) | 689.9 V | 0.14 V (0.02%) | 9.6 W | ✓ OK (≤3%) |
FAQ — 63 Amp Cable Size at 15 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 63A at 15 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 15m at 690V (voltage drop: 2.19V or 0.32%).
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 · 20m (690V)63A · 25m (690V)63A · 30m (690V)63A · 35m (690V)63A · 40m (690V)63A · 45m (690V)63A · 50m (690V)63A · 60m (690V)63A · 70m (690V)10A · 15m (690V)16A · 15m (690V)20A · 15m (690V)25A · 15m (690V)32A · 15m (690V)40A · 15m (690V)50A · 15m (690V)80A · 15m (690V)100A · 15m (690V)125A · 15m (690V)160A · 15m (690V)200A · 15m (690V)