225 Amp Cable Size at 25 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 225 A over 25 m (82.0 ft).
Copper Cable (≤3% Drop)95 mm²Drop: 2.19V (0.53%)
Aluminum Cable (≤3% Drop)150 mm²Drop: 2.29V (0.55%)
Voltage at Load412.8 VLine Loss: 855.3 W
Max Power & Breaker161.73 kW225A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A 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 | 139.0 V (33.49%) | 276.0 V | 229.28 V (55.25%) | 54168.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 83.4 V (20.1%) | 331.6 V | 137.57 V (33.15%) | 32501.2 W | Drop High |
| 4 mm² | 32 A | 25 A | 52.12 V (12.56%) | 362.9 V | 85.98 V (20.72%) | 20313.3 W | Drop High |
| 6 mm² | 41 A | 32 A | 34.75 V (8.37%) | 380.3 V | 57.32 V (13.81%) | 13542.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 20.85 V (5.02%) | 394.2 V | 34.39 V (8.29%) | 8125.3 W | Drop High |
| 16 mm² | 76 A | 59 A | 13.03 V (3.14%) | 402.0 V | 21.5 V (5.18%) | 5078.3 W | Drop High |
| 25 mm² | 101 A | 78 A | 8.34 V (2.01%) | 406.7 V | 13.76 V (3.31%) | 3250.1 W | Drop High |
| 35 mm² | 125 A | 97 A | 5.96 V (1.44%) | 409.0 V | 9.83 V (2.37%) | 2321.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 4.17 V (1.0%) | 410.8 V | 6.88 V (1.66%) | 1625.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 2.98 V (0.72%) | 412.0 V | 4.91 V (1.18%) | 1160.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 2.19 V (0.53%) | 412.8 V | 3.62 V (0.87%) | 855.3 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 1.74 V (0.42%) | 413.3 V | 2.87 V (0.69%) | 677.1 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 1.39 V (0.33%) | 413.6 V | 2.29 V (0.55%) | 541.7 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 1.13 V (0.27%) | 413.9 V | 1.86 V (0.45%) | 439.2 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.87 V (0.21%) | 414.1 V | 1.43 V (0.35%) | 338.6 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.69 V (0.17%) | 414.3 V | 1.15 V (0.28%) | 270.8 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.52 V (0.13%) | 414.5 V | 0.86 V (0.21%) | 203.1 W | ✓ OK (≤3%) |
FAQ — 225 Amp Cable Size at 25 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 225A at 25 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 95 mm² copper cable for 225A over 25m at 415V (voltage drop: 2.19V or 0.53%).
What is the power capacity of 225A at 415V?
At unity power factor, 225A at 415V supports 161.73 kW with a standard 225A circuit breaker.
Related Lengths & Currents (415V)
225A · 5m (415V)225A · 10m (415V)225A · 15m (415V)225A · 20m (415V)225A · 30m (415V)225A · 35m (415V)225A · 40m (415V)225A · 45m (415V)225A · 50m (415V)225A · 60m (415V)225A · 70m (415V)10A · 25m (415V)16A · 25m (415V)20A · 25m (415V)25A · 25m (415V)32A · 25m (415V)40A · 25m (415V)50A · 25m (415V)63A · 25m (415V)80A · 25m (415V)100A · 25m (415V)125A · 25m (415V)160A · 25m (415V)200A · 25m (415V)