425 Amp Cable Size at 200 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 425 A over 200 m (656.2 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 10.5V (2.53%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 12.99V (3.13%)
Voltage at Load404.5 VLine Loss: 7730.7 W
Max Power & Breaker305.49 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 200m
| 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 | 2100.4 V (506.12%) | 0.0 V | 3464.68 V (834.86%) | 1546150.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1260.24 V (303.67%) | 0.0 V | 2078.81 V (500.92%) | 927690.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 787.65 V (189.8%) | 0.0 V | 1299.25 V (313.07%) | 579806.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 525.1 V (126.53%) | 0.0 V | 866.17 V (208.72%) | 386537.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 315.06 V (75.92%) | 99.9 V | 519.7 V (125.23%) | 231922.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 196.91 V (47.45%) | 218.1 V | 324.81 V (78.27%) | 144951.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 126.02 V (30.37%) | 289.0 V | 207.88 V (50.09%) | 92769.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 90.02 V (21.69%) | 325.0 V | 148.49 V (35.78%) | 66263.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 63.01 V (15.18%) | 352.0 V | 103.94 V (25.05%) | 46384.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 45.01 V (10.85%) | 370.0 V | 74.24 V (17.89%) | 33131.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 33.16 V (7.99%) | 381.8 V | 54.71 V (13.18%) | 24412.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 26.26 V (6.33%) | 388.7 V | 43.31 V (10.44%) | 19326.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 21.0 V (5.06%) | 394.0 V | 34.65 V (8.35%) | 15461.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 17.03 V (4.1%) | 398.0 V | 28.09 V (6.77%) | 12536.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 13.13 V (3.16%) | 401.9 V | 21.65 V (5.22%) | 9663.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 10.5 V (2.53%) | 404.5 V | 17.32 V (4.17%) | 7730.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 7.88 V (1.9%) | 407.1 V | 12.99 V (3.13%) | 5798.1 W | ✓ OK (≤3%) |
FAQ — 425 Amp Cable Size at 200 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 425A at 200 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 425A over 200m at 415V (voltage drop: 10.5V or 2.53%).
What is the power capacity of 425A at 415V?
At unity power factor, 425A at 415V supports 305.49 kW with a standard 450A circuit breaker.
Related Lengths & Currents (415V)
425A · 5m (415V)425A · 10m (415V)425A · 15m (415V)425A · 20m (415V)425A · 25m (415V)425A · 30m (415V)425A · 35m (415V)425A · 40m (415V)425A · 45m (415V)425A · 50m (415V)425A · 60m (415V)425A · 70m (415V)10A · 200m (415V)16A · 200m (415V)20A · 200m (415V)25A · 200m (415V)32A · 200m (415V)40A · 200m (415V)50A · 200m (415V)63A · 200m (415V)80A · 200m (415V)100A · 200m (415V)125A · 200m (415V)160A · 200m (415V)200A · 200m (415V)