1000 Amp Cable Size at 400 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 1000 A over 400 m (1312.3 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 18.54V (2.69%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 61.14V (8.86%)
Voltage at Load671.5 VLine Loss: 32100.0 W
Max Power & Breaker1195.12 kW1000A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 1000A at 400m
| 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 | 9884.24 V (1432.5%) | 0.0 V | 16304.37 V (2362.95%) | 17120000.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 5930.54 V (859.5%) | 0.0 V | 9782.62 V (1417.77%) | 10272000.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 3706.59 V (537.19%) | 0.0 V | 6114.14 V (886.11%) | 6420000.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 2471.06 V (358.12%) | 0.0 V | 4076.09 V (590.74%) | 4280000.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1482.64 V (214.87%) | 0.0 V | 2445.66 V (354.44%) | 2568000.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 926.65 V (134.3%) | 0.0 V | 1528.53 V (221.53%) | 1605000.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 593.05 V (85.95%) | 96.9 V | 978.26 V (141.78%) | 1027200.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 423.61 V (61.39%) | 266.4 V | 698.76 V (101.27%) | 733714.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 296.53 V (42.97%) | 393.5 V | 489.13 V (70.89%) | 513600.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 211.81 V (30.7%) | 478.2 V | 349.38 V (50.63%) | 366857.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 156.07 V (22.62%) | 533.9 V | 257.44 V (37.31%) | 270315.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 123.55 V (17.91%) | 566.4 V | 203.8 V (29.54%) | 214000.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 98.84 V (14.32%) | 591.2 V | 163.04 V (23.63%) | 171200.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 80.14 V (11.61%) | 609.9 V | 132.2 V (19.16%) | 138810.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 61.78 V (8.95%) | 628.2 V | 101.9 V (14.77%) | 107000.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 49.42 V (7.16%) | 640.6 V | 81.52 V (11.81%) | 85600.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 37.07 V (5.37%) | 652.9 V | 61.14 V (8.86%) | 64200.0 W | Drop High |
FAQ — 1000 Amp Cable Size at 400 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 1000A at 400 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 1000A over 400m at 690V (voltage drop: 18.54V or 2.69%).
What is the power capacity of 1000A at 690V?
At unity power factor, 1000A at 690V supports 1195.12 kW with a standard 1000A circuit breaker.
Related Lengths & Currents (690V)
1000A · 5m (690V)1000A · 10m (690V)1000A · 15m (690V)1000A · 20m (690V)1000A · 25m (690V)1000A · 30m (690V)1000A · 35m (690V)1000A · 40m (690V)1000A · 45m (690V)1000A · 50m (690V)1000A · 60m (690V)1000A · 70m (690V)10A · 400m (690V)16A · 400m (690V)20A · 400m (690V)25A · 400m (690V)32A · 400m (690V)40A · 400m (690V)50A · 400m (690V)63A · 400m (690V)80A · 400m (690V)100A · 400m (690V)125A · 400m (690V)160A · 400m (690V)200A · 400m (690V)