325 Amp Cable Size at 500 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 325 A over 500 m (1640.4 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 7.53V (1.88%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 24.84V (6.21%)
Voltage at Load392.5 VLine Loss: 4238.2 W
Max Power & Breaker225.17 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A at 500m
| 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 | 4015.47 V (1003.87%) | 0.0 V | 6623.65 V (1655.91%) | 2260375.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2409.28 V (602.32%) | 0.0 V | 3974.19 V (993.55%) | 1356225.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1505.8 V (376.45%) | 0.0 V | 2483.87 V (620.97%) | 847640.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 1003.87 V (250.97%) | 0.0 V | 1655.91 V (413.98%) | 565093.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 602.32 V (150.58%) | 0.0 V | 993.55 V (248.39%) | 339056.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 376.45 V (94.11%) | 23.5 V | 620.97 V (155.24%) | 211910.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 240.93 V (60.23%) | 159.1 V | 397.42 V (99.35%) | 135622.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 172.09 V (43.02%) | 227.9 V | 283.87 V (70.97%) | 96873.2 W | Drop High |
| 50 mm² | 151 A | 118 A | 120.46 V (30.12%) | 279.5 V | 198.71 V (49.68%) | 67811.2 W | Drop High |
| 70 mm² | 192 A | 150 A | 86.05 V (21.51%) | 314.0 V | 141.94 V (35.48%) | 48436.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 63.4 V (15.85%) | 336.6 V | 104.58 V (26.15%) | 35690.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 50.19 V (12.55%) | 349.8 V | 82.8 V (20.7%) | 28254.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 40.15 V (10.04%) | 359.8 V | 66.24 V (16.56%) | 22603.8 W | Drop High |
| 185 mm² | 353 A | 275 A | 32.56 V (8.14%) | 367.4 V | 53.71 V (13.43%) | 18327.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 25.1 V (6.27%) | 374.9 V | 41.4 V (10.35%) | 14127.3 W | Drop High |
| 300 mm² | 477 A | 372 A | 20.08 V (5.02%) | 379.9 V | 33.12 V (8.28%) | 11301.9 W | Drop High |
| 400 mm² | 570 A | 445 A | 15.06 V (3.76%) | 384.9 V | 24.84 V (6.21%) | 8476.4 W | ~ ≤5% |
FAQ — 325 Amp Cable Size at 500 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 325A at 500 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 325A over 500m at 400V (voltage drop: 7.53V or 1.88%).
What is the power capacity of 325A at 400V?
At unity power factor, 325A at 400V supports 225.17 kW with a standard 350A circuit breaker.
Related Lengths & Currents (400V)
325A · 5m (400V)325A · 10m (400V)325A · 15m (400V)325A · 20m (400V)325A · 25m (400V)325A · 30m (400V)325A · 35m (400V)325A · 40m (400V)325A · 45m (400V)325A · 50m (400V)325A · 60m (400V)325A · 70m (400V)10A · 500m (400V)16A · 500m (400V)20A · 500m (400V)25A · 500m (400V)32A · 500m (400V)40A · 500m (400V)50A · 500m (400V)63A · 500m (400V)80A · 500m (400V)100A · 500m (400V)125A · 500m (400V)160A · 500m (400V)200A · 500m (400V)