63 Amp Cable Size at 25 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 63 A over 25 m (82.0 ft).
Copper Cable (≤3% Drop)16 mm²Drop: 4.21V (1.83%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 4.45V (1.93%)
Voltage at Load225.8 VLine Loss: 265.4 W
Max Power & Breaker14.49 kW63A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 63A at 25m
| 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 | 44.94 V (19.54%) | 185.1 V | 74.13 V (32.23%) | 2831.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 26.96 V (11.72%) | 203.0 V | 44.48 V (19.34%) | 1698.7 W | Drop High |
| 4 mm² | 32 A | 25 A | 16.85 V (7.33%) | 213.1 V | 27.8 V (12.09%) | 1061.7 W | Drop High |
| 6 mm² | 41 A | 32 A | 11.23 V (4.88%) | 218.8 V | 18.53 V (8.06%) | 707.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 6.74 V (2.93%) | 223.3 V | 11.12 V (4.83%) | 424.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 4.21 V (1.83%) | 225.8 V | 6.95 V (3.02%) | 265.4 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 2.7 V (1.17%) | 227.3 V | 4.45 V (1.93%) | 169.9 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.93 V (0.84%) | 228.1 V | 3.18 V (1.38%) | 121.3 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.35 V (0.59%) | 228.7 V | 2.22 V (0.97%) | 84.9 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.96 V (0.42%) | 229.0 V | 1.59 V (0.69%) | 60.7 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.71 V (0.31%) | 229.3 V | 1.17 V (0.51%) | 44.7 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.56 V (0.24%) | 229.4 V | 0.93 V (0.4%) | 35.4 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.45 V (0.2%) | 229.6 V | 0.74 V (0.32%) | 28.3 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.36 V (0.16%) | 229.6 V | 0.6 V (0.26%) | 23.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.28 V (0.12%) | 229.7 V | 0.46 V (0.2%) | 17.7 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.22 V (0.1%) | 229.8 V | 0.37 V (0.16%) | 14.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.17 V (0.07%) | 229.8 V | 0.28 V (0.12%) | 10.6 W | ✓ OK (≤3%) |
FAQ — 63 Amp Cable Size at 25 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 63A at 25 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 16 mm² copper cable for 63A over 25m at 230V (voltage drop: 4.21V or 1.83%).
What is the power capacity of 63A at 230V?
At unity power factor, 63A at 230V supports 14.49 kW with a standard 63A circuit breaker.
Related Lengths & Currents (230V)
63A · 5m (230V)63A · 10m (230V)63A · 15m (230V)63A · 20m (230V)63A · 30m (230V)63A · 35m (230V)63A · 40m (230V)63A · 45m (230V)63A · 50m (230V)63A · 60m (230V)63A · 70m (230V)10A · 25m (230V)16A · 25m (230V)20A · 25m (230V)25A · 25m (230V)32A · 25m (230V)40A · 25m (230V)50A · 25m (230V)80A · 25m (230V)100A · 25m (230V)125A · 25m (230V)160A · 25m (230V)200A · 25m (230V)