325 Amp Cable Size at 350 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 325 A over 350 m (1148.3 ft).
Copper Cable (≤3% Drop)400 mm²Drop: 10.54V (2.54%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 17.39V (4.19%)
Voltage at Load404.5 VLine Loss: 5933.5 W
Max Power & Breaker233.61 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A at 350m
| 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 | 2810.83 V (677.31%) | 0.0 V | 4636.56 V (1117.24%) | 1582262.5 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1686.5 V (406.39%) | 0.0 V | 2781.93 V (670.35%) | 949357.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 1054.06 V (253.99%) | 0.0 V | 1738.71 V (418.97%) | 593348.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 702.71 V (169.33%) | 0.0 V | 1159.14 V (279.31%) | 395565.6 W | Drop High |
| 10 mm² | 57 A | 44 A | 421.62 V (101.6%) | 0.0 V | 695.48 V (167.59%) | 237339.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 263.52 V (63.5%) | 151.5 V | 434.68 V (104.74%) | 148337.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 168.65 V (40.64%) | 246.4 V | 278.19 V (67.03%) | 94935.8 W | Drop High |
| 35 mm² | 125 A | 97 A | 120.46 V (29.03%) | 294.5 V | 198.71 V (47.88%) | 67811.2 W | Drop High |
| 50 mm² | 151 A | 118 A | 84.32 V (20.32%) | 330.7 V | 139.1 V (33.52%) | 47467.9 W | Drop High |
| 70 mm² | 192 A | 150 A | 60.23 V (14.51%) | 354.8 V | 99.35 V (23.94%) | 33905.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 44.38 V (10.69%) | 370.6 V | 73.21 V (17.64%) | 24983.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 35.14 V (8.47%) | 379.9 V | 57.96 V (13.97%) | 19778.3 W | Drop High |
| 150 mm² | 309 A | 241 A | 28.11 V (6.77%) | 386.9 V | 46.37 V (11.17%) | 15822.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 22.79 V (5.49%) | 392.2 V | 37.59 V (9.06%) | 12829.2 W | Drop High |
| 240 mm² | 415 A | 324 A | 17.57 V (4.23%) | 397.4 V | 28.98 V (6.98%) | 9889.1 W | ~ ≤5% |
| 300 mm² | 477 A | 372 A | 14.05 V (3.39%) | 400.9 V | 23.18 V (5.59%) | 7911.3 W | ~ ≤5% |
| 400 mm² | 570 A | 445 A | 10.54 V (2.54%) | 404.5 V | 17.39 V (4.19%) | 5933.5 W | ✓ OK (≤3%) |
FAQ — 325 Amp Cable Size at 350 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 325A at 350 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 325A over 350m at 415V (voltage drop: 10.54V or 2.54%).
What is the power capacity of 325A at 415V?
At unity power factor, 325A at 415V supports 233.61 kW with a standard 350A circuit breaker.
Related Lengths & Currents (415V)
325A · 5m (415V)325A · 10m (415V)325A · 15m (415V)325A · 20m (415V)325A · 25m (415V)325A · 30m (415V)325A · 35m (415V)325A · 40m (415V)325A · 45m (415V)325A · 50m (415V)325A · 60m (415V)325A · 70m (415V)10A · 350m (415V)16A · 350m (415V)20A · 350m (415V)25A · 350m (415V)32A · 350m (415V)40A · 350m (415V)50A · 350m (415V)63A · 350m (415V)80A · 350m (415V)100A · 350m (415V)125A · 350m (415V)160A · 350m (415V)200A · 350m (415V)