63 Amp Cable Size at 45 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 63 A over 45 m (147.6 ft).
Copper Cable (≤3% Drop)16 mm²Drop: 6.57V (1.58%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 6.93V (1.67%)
Voltage at Load408.4 VLine Loss: 716.7 W
Max Power & Breaker45.28 kW63A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 63A at 45m
| 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 | 70.05 V (16.88%) | 344.9 V | 115.56 V (27.85%) | 7644.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 42.03 V (10.13%) | 373.0 V | 69.33 V (16.71%) | 4586.6 W | Drop High |
| 4 mm² | 32 A | 25 A | 26.27 V (6.33%) | 388.7 V | 43.33 V (10.44%) | 2866.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 17.51 V (4.22%) | 397.5 V | 28.89 V (6.96%) | 1911.1 W | Drop High |
| 10 mm² | 57 A | 44 A | 10.51 V (2.53%) | 404.5 V | 17.33 V (4.18%) | 1146.6 W | Drop High |
| 16 mm² | 76 A | 59 A | 6.57 V (1.58%) | 408.4 V | 10.83 V (2.61%) | 716.7 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 4.2 V (1.01%) | 410.8 V | 6.93 V (1.67%) | 458.7 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 3.0 V (0.72%) | 412.0 V | 4.95 V (1.19%) | 327.6 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 2.1 V (0.51%) | 412.9 V | 3.47 V (0.84%) | 229.3 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 1.5 V (0.36%) | 413.5 V | 2.48 V (0.6%) | 163.8 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 1.11 V (0.27%) | 413.9 V | 1.82 V (0.44%) | 120.7 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.88 V (0.21%) | 414.1 V | 1.44 V (0.35%) | 95.6 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.7 V (0.17%) | 414.3 V | 1.16 V (0.28%) | 76.4 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.57 V (0.14%) | 414.4 V | 0.94 V (0.23%) | 62.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.44 V (0.11%) | 414.6 V | 0.72 V (0.17%) | 47.8 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.35 V (0.08%) | 414.6 V | 0.58 V (0.14%) | 38.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.26 V (0.06%) | 414.7 V | 0.43 V (0.1%) | 28.7 W | ✓ OK (≤3%) |
FAQ — 63 Amp Cable Size at 45 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 63A at 45 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 16 mm² copper cable for 63A over 45m at 415V (voltage drop: 6.57V or 1.58%).
What is the power capacity of 63A at 415V?
At unity power factor, 63A at 415V supports 45.28 kW with a standard 63A circuit breaker.
Related Lengths & Currents (415V)
63A · 5m (415V)63A · 10m (415V)63A · 15m (415V)63A · 20m (415V)63A · 25m (415V)63A · 30m (415V)63A · 35m (415V)63A · 40m (415V)63A · 50m (415V)63A · 60m (415V)63A · 70m (415V)10A · 45m (415V)16A · 45m (415V)20A · 45m (415V)25A · 45m (415V)32A · 45m (415V)40A · 45m (415V)50A · 45m (415V)80A · 45m (415V)100A · 45m (415V)125A · 45m (415V)160A · 45m (415V)200A · 45m (415V)