300 Amp Cable Size at 600 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 300 A over 600 m (1968.5 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 8.34V (2.08%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 27.51V (6.88%)
Voltage at Load391.7 VLine Loss: 4333.5 W
Max Power & Breaker207.85 kW300A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 300A at 600m
| 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 | 4447.91 V (1111.98%) | 0.0 V | 7336.97 V (1834.24%) | 2311200.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2668.74 V (667.19%) | 0.0 V | 4402.18 V (1100.55%) | 1386720.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1667.96 V (416.99%) | 0.0 V | 2751.36 V (687.84%) | 866700.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1111.98 V (277.99%) | 0.0 V | 1834.24 V (458.56%) | 577800.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 667.19 V (166.8%) | 0.0 V | 1100.55 V (275.14%) | 346680.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 416.99 V (104.25%) | 0.0 V | 687.84 V (171.96%) | 216675.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 266.87 V (66.72%) | 133.1 V | 440.22 V (110.05%) | 138672.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 190.62 V (47.66%) | 209.4 V | 314.44 V (78.61%) | 99051.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 133.44 V (33.36%) | 266.6 V | 220.11 V (55.03%) | 69336.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 95.31 V (23.83%) | 304.7 V | 157.22 V (39.31%) | 49525.7 W | Drop High |
| 95 mm² | 232 A | 181 A | 70.23 V (17.56%) | 329.8 V | 115.85 V (28.96%) | 36492.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 55.6 V (13.9%) | 344.4 V | 91.71 V (22.93%) | 28890.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 44.48 V (11.12%) | 355.5 V | 73.37 V (18.34%) | 23112.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 36.06 V (9.02%) | 363.9 V | 59.49 V (14.87%) | 18739.5 W | Drop High |
| 240 mm² | 415 A | 324 A | 27.8 V (6.95%) | 372.2 V | 45.86 V (11.46%) | 14445.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 22.24 V (5.56%) | 377.8 V | 36.68 V (9.17%) | 11556.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 16.68 V (4.17%) | 383.3 V | 27.51 V (6.88%) | 8667.0 W | ~ ≤5% |
FAQ — 300 Amp Cable Size at 600 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 300A at 600 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 300A over 600m at 400V (voltage drop: 8.34V or 2.08%).
What is the power capacity of 300A at 400V?
At unity power factor, 300A at 400V supports 207.85 kW with a standard 300A circuit breaker.
Related Lengths & Currents (400V)
300A · 5m (400V)300A · 10m (400V)300A · 15m (400V)300A · 20m (400V)300A · 25m (400V)300A · 30m (400V)300A · 35m (400V)300A · 40m (400V)300A · 45m (400V)300A · 50m (400V)300A · 60m (400V)300A · 70m (400V)10A · 600m (400V)16A · 600m (400V)20A · 600m (400V)25A · 600m (400V)32A · 600m (400V)40A · 600m (400V)50A · 600m (400V)63A · 600m (400V)80A · 600m (400V)100A · 600m (400V)125A · 600m (400V)160A · 600m (400V)200A · 600m (400V)