1000 Amp Cable Size at 250 Meters (415V Three-Phase (UK / Australia Industrial))
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 (2.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 38.21V (9.21%)
Voltage at Load403.4 VLine Loss: 20062.5 W
Max Power & Breaker718.8 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 (1488.59%) | 0.0 V | 10190.23 V (2455.48%) | 10700000.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 3706.59 V (893.15%) | 0.0 V | 6114.14 V (1473.29%) | 6420000.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2316.62 V (558.22%) | 0.0 V | 3821.34 V (920.8%) | 4012500.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1544.41 V (372.15%) | 0.0 V | 2547.56 V (613.87%) | 2675000.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 926.65 V (223.29%) | 0.0 V | 1528.53 V (368.32%) | 1605000.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 579.15 V (139.56%) | 0.0 V | 955.33 V (230.2%) | 1003125.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 370.66 V (89.32%) | 44.3 V | 611.41 V (147.33%) | 642000.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 264.76 V (63.8%) | 150.2 V | 436.72 V (105.23%) | 458571.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 185.33 V (44.66%) | 229.7 V | 305.71 V (73.66%) | 321000.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 132.38 V (31.9%) | 282.6 V | 218.36 V (52.62%) | 229285.7 W | Drop High |
| 95 mm² | 232 A | 181 A | 97.54 V (23.5%) | 317.5 V | 160.9 V (38.77%) | 168947.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 77.22 V (18.61%) | 337.8 V | 127.38 V (30.69%) | 133750.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 61.78 V (14.89%) | 353.2 V | 101.9 V (24.55%) | 107000.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 50.09 V (12.07%) | 364.9 V | 82.62 V (19.91%) | 86756.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 38.61 V (9.3%) | 376.4 V | 63.69 V (15.35%) | 66875.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 30.89 V (7.44%) | 384.1 V | 50.95 V (12.28%) | 53500.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 23.17 V (5.58%) | 391.8 V | 38.21 V (9.21%) | 40125.0 W | Drop High |
FAQ — 1000 Amp Cable Size at 250 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 1000A at 250 meters (415V)?
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 415V (voltage drop: 11.59V or 2.79%).
What is the power capacity of 1000A at 415V?
At unity power factor, 1000A at 415V supports 718.8 kW with a standard 1000A circuit breaker.
Related Lengths & Currents (415V)
1000A · 5m (415V)1000A · 10m (415V)1000A · 15m (415V)1000A · 20m (415V)1000A · 25m (415V)1000A · 30m (415V)1000A · 35m (415V)1000A · 40m (415V)1000A · 45m (415V)1000A · 50m (415V)1000A · 60m (415V)1000A · 70m (415V)10A · 250m (415V)16A · 250m (415V)20A · 250m (415V)25A · 250m (415V)32A · 250m (415V)40A · 250m (415V)50A · 250m (415V)63A · 250m (415V)80A · 250m (415V)100A · 250m (415V)125A · 250m (415V)160A · 250m (415V)200A · 250m (415V)