225 Amp Cable Size at 300 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 300 m (984.3 ft).
Copper Cable (≤3% Drop)240 mm²Drop: 10.42V (2.51%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 10.32V (2.49%)
Voltage at Load404.6 VLine Loss: 4062.7 W
Max Power & Breaker161.73 kW225A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A at 300m
| 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 | 1667.96 V (401.92%) | 0.0 V | 2751.36 V (662.98%) | 650025.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1000.78 V (241.15%) | 0.0 V | 1650.82 V (397.79%) | 390015.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 625.49 V (150.72%) | 0.0 V | 1031.76 V (248.62%) | 243759.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 416.99 V (100.48%) | 0.0 V | 687.84 V (165.74%) | 162506.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 250.19 V (60.29%) | 164.8 V | 412.7 V (99.45%) | 97503.8 W | Drop High |
| 16 mm² | 76 A | 59 A | 156.37 V (37.68%) | 258.6 V | 257.94 V (62.15%) | 60939.8 W | Drop High |
| 25 mm² | 101 A | 78 A | 100.08 V (24.12%) | 314.9 V | 165.08 V (39.78%) | 39001.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 71.48 V (17.23%) | 343.5 V | 117.92 V (28.41%) | 27858.2 W | Drop High |
| 50 mm² | 151 A | 118 A | 50.04 V (12.06%) | 365.0 V | 82.54 V (19.89%) | 19500.7 W | Drop High |
| 70 mm² | 192 A | 150 A | 35.74 V (8.61%) | 379.3 V | 58.96 V (14.21%) | 13929.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 26.34 V (6.35%) | 388.7 V | 43.44 V (10.47%) | 10263.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 20.85 V (5.02%) | 394.2 V | 34.39 V (8.29%) | 8125.3 W | Drop High |
| 150 mm² | 309 A | 241 A | 16.68 V (4.02%) | 398.3 V | 27.51 V (6.63%) | 6500.2 W | ~ ≤5% |
| 185 mm² | 353 A | 275 A | 13.52 V (3.26%) | 401.5 V | 22.31 V (5.38%) | 5270.5 W | ~ ≤5% |
| 240 mm² | 415 A | 324 A | 10.42 V (2.51%) | 404.6 V | 17.2 V (4.14%) | 4062.7 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 8.34 V (2.01%) | 406.7 V | 13.76 V (3.31%) | 3250.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 6.25 V (1.51%) | 408.7 V | 10.32 V (2.49%) | 2437.6 W | ✓ OK (≤3%) |
FAQ — 225 Amp Cable Size at 300 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 225A at 300 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 225A over 300m at 415V (voltage drop: 10.42V or 2.51%).
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 · 25m (415V)225A · 30m (415V)225A · 35m (415V)225A · 40m (415V)225A · 45m (415V)225A · 50m (415V)225A · 60m (415V)225A · 70m (415V)10A · 300m (415V)16A · 300m (415V)20A · 300m (415V)25A · 300m (415V)32A · 300m (415V)40A · 300m (415V)50A · 300m (415V)63A · 300m (415V)80A · 300m (415V)100A · 300m (415V)125A · 300m (415V)160A · 300m (415V)200A · 300m (415V)