1000 Amp Cable Size at 250 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 1000 A over 250 m (820.2 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 11.59V (2.9%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 38.21V (9.55%)
Voltage at Load388.4 VLine Loss: 20062.5 W
Max Power & Breaker692.82 kW1000A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 1000A at 250m
| 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 | 6177.65 V (1544.41%) | 0.0 V | 10190.23 V (2547.56%) | 10700000.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 3706.59 V (926.65%) | 0.0 V | 6114.14 V (1528.53%) | 6420000.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2316.62 V (579.15%) | 0.0 V | 3821.34 V (955.33%) | 4012500.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1544.41 V (386.1%) | 0.0 V | 2547.56 V (636.89%) | 2675000.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 926.65 V (231.66%) | 0.0 V | 1528.53 V (382.13%) | 1605000.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 579.15 V (144.79%) | 0.0 V | 955.33 V (238.83%) | 1003125.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 370.66 V (92.66%) | 29.3 V | 611.41 V (152.85%) | 642000.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 264.76 V (66.19%) | 135.2 V | 436.72 V (109.18%) | 458571.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 185.33 V (46.33%) | 214.7 V | 305.71 V (76.43%) | 321000.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 132.38 V (33.09%) | 267.6 V | 218.36 V (54.59%) | 229285.7 W | Drop High |
| 95 mm² | 232 A | 181 A | 97.54 V (24.39%) | 302.5 V | 160.9 V (40.22%) | 168947.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 77.22 V (19.31%) | 322.8 V | 127.38 V (31.84%) | 133750.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 61.78 V (15.44%) | 338.2 V | 101.9 V (25.48%) | 107000.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 50.09 V (12.52%) | 349.9 V | 82.62 V (20.66%) | 86756.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 38.61 V (9.65%) | 361.4 V | 63.69 V (15.92%) | 66875.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 30.89 V (7.72%) | 369.1 V | 50.95 V (12.74%) | 53500.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 23.17 V (5.79%) | 376.8 V | 38.21 V (9.55%) | 40125.0 W | Drop High |
FAQ — 1000 Amp Cable Size at 250 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 1000A at 250 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 1000A over 250m at 400V (voltage drop: 11.59V or 2.9%).
What is the power capacity of 1000A at 400V?
At unity power factor, 1000A at 400V supports 692.82 kW with a standard 1000A circuit breaker.
Related Lengths & Currents (400V)
1000A · 5m (400V)1000A · 10m (400V)1000A · 15m (400V)1000A · 20m (400V)1000A · 25m (400V)1000A · 30m (400V)1000A · 35m (400V)1000A · 40m (400V)1000A · 45m (400V)1000A · 50m (400V)1000A · 60m (400V)1000A · 70m (400V)10A · 250m (400V)16A · 250m (400V)20A · 250m (400V)25A · 250m (400V)32A · 250m (400V)40A · 250m (400V)50A · 250m (400V)63A · 250m (400V)80A · 250m (400V)100A · 250m (400V)125A · 250m (400V)160A · 250m (400V)200A · 250m (400V)