225 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 225 A over 15 m (49.2 ft).
Copper Cable (≤3% Drop)95 mm²Drop: 1.32V (0.19%)
Aluminum Cable (≤3% Drop)150 mm²Drop: 1.38V (0.2%)
Voltage at Load688.7 VLine Loss: 513.2 W
Max Power & Breaker268.9 kW225A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A 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 | 83.4 V (12.09%) | 606.6 V | 137.57 V (19.94%) | 32501.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 50.04 V (7.25%) | 640.0 V | 82.54 V (11.96%) | 19500.8 W | Drop High |
| 4 mm² | 32 A | 25 A | 31.27 V (4.53%) | 658.7 V | 51.59 V (7.48%) | 12188.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 20.85 V (3.02%) | 669.2 V | 34.39 V (4.98%) | 8125.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 12.51 V (1.81%) | 677.5 V | 20.64 V (2.99%) | 4875.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 7.82 V (1.13%) | 682.2 V | 12.9 V (1.87%) | 3047.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 5.0 V (0.73%) | 685.0 V | 8.25 V (1.2%) | 1950.1 W | Drop High |
| 35 mm² | 125 A | 97 A | 3.57 V (0.52%) | 686.4 V | 5.9 V (0.85%) | 1392.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 2.5 V (0.36%) | 687.5 V | 4.13 V (0.6%) | 975.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.79 V (0.26%) | 688.2 V | 2.95 V (0.43%) | 696.5 W | Drop High |
| 95 mm² | 232 A | 181 A | 1.32 V (0.19%) | 688.7 V | 2.17 V (0.31%) | 513.2 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 1.04 V (0.15%) | 689.0 V | 1.72 V (0.25%) | 406.3 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.83 V (0.12%) | 689.2 V | 1.38 V (0.2%) | 325.0 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.68 V (0.1%) | 689.3 V | 1.12 V (0.16%) | 263.5 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.52 V (0.08%) | 689.5 V | 0.86 V (0.12%) | 203.1 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.42 V (0.06%) | 689.6 V | 0.69 V (0.1%) | 162.5 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.31 V (0.05%) | 689.7 V | 0.52 V (0.07%) | 121.9 W | ✓ OK (≤3%) |
FAQ — 225 Amp Cable Size at 15 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 225A at 15 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 95 mm² copper cable for 225A over 15m at 690V (voltage drop: 1.32V or 0.19%).
What is the power capacity of 225A at 690V?
At unity power factor, 225A at 690V supports 268.9 kW with a standard 225A circuit breaker.
Related Lengths & Currents (690V)
225A · 5m (690V)225A · 10m (690V)225A · 20m (690V)225A · 25m (690V)225A · 30m (690V)225A · 35m (690V)225A · 40m (690V)225A · 45m (690V)225A · 50m (690V)225A · 60m (690V)225A · 70m (690V)10A · 15m (690V)16A · 15m (690V)20A · 15m (690V)25A · 15m (690V)32A · 15m (690V)40A · 15m (690V)50A · 15m (690V)63A · 15m (690V)80A · 15m (690V)100A · 15m (690V)125A · 15m (690V)160A · 15m (690V)200A · 15m (690V)