125 Amp Cable Size at 600 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 125 A over 600 m (1968.5 ft).
Copper Cable (≤3% Drop)240 mm²Drop: 11.58V (2.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 11.46V (2.76%)
Voltage at Load403.4 VLine Loss: 2507.8 W
Max Power & Breaker89.85 kW125A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 125A 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 | 1853.29 V (446.58%) | 0.0 V | 3057.07 V (736.64%) | 401250.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1111.98 V (267.95%) | 0.0 V | 1834.24 V (441.99%) | 240750.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 694.99 V (167.47%) | 0.0 V | 1146.4 V (276.24%) | 150468.8 W | Drop High |
| 6 mm² | 41 A | 32 A | 463.32 V (111.64%) | 0.0 V | 764.27 V (184.16%) | 100312.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 277.99 V (66.99%) | 137.0 V | 458.56 V (110.5%) | 60187.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 173.75 V (41.87%) | 241.3 V | 286.6 V (69.06%) | 37617.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 111.2 V (26.79%) | 303.8 V | 183.42 V (44.2%) | 24075.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 79.43 V (19.14%) | 335.6 V | 131.02 V (31.57%) | 17196.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 55.6 V (13.4%) | 359.4 V | 91.71 V (22.1%) | 12037.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 39.71 V (9.57%) | 375.3 V | 65.51 V (15.79%) | 8598.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 29.26 V (7.05%) | 385.7 V | 48.27 V (11.63%) | 6335.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 23.17 V (5.58%) | 391.8 V | 38.21 V (9.21%) | 5015.6 W | Drop High |
| 150 mm² | 309 A | 241 A | 18.53 V (4.47%) | 396.5 V | 30.57 V (7.37%) | 4012.5 W | ~ ≤5% |
| 185 mm² | 353 A | 275 A | 15.03 V (3.62%) | 400.0 V | 24.79 V (5.97%) | 3253.4 W | ~ ≤5% |
| 240 mm² | 415 A | 324 A | 11.58 V (2.79%) | 403.4 V | 19.11 V (4.6%) | 2507.8 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 9.27 V (2.23%) | 405.7 V | 15.29 V (3.68%) | 2006.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 6.95 V (1.67%) | 408.1 V | 11.46 V (2.76%) | 1504.7 W | ✓ OK (≤3%) |
FAQ — 125 Amp Cable Size at 600 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 125A at 600 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 125A over 600m at 415V (voltage drop: 11.58V or 2.79%).
What is the power capacity of 125A at 415V?
At unity power factor, 125A at 415V supports 89.85 kW with a standard 125A circuit breaker.
Related Lengths & Currents (415V)
125A · 5m (415V)125A · 10m (415V)125A · 15m (415V)125A · 20m (415V)125A · 25m (415V)125A · 30m (415V)125A · 35m (415V)125A · 40m (415V)125A · 45m (415V)125A · 50m (415V)125A · 60m (415V)125A · 70m (415V)10A · 600m (415V)16A · 600m (415V)20A · 600m (415V)25A · 600m (415V)32A · 600m (415V)40A · 600m (415V)50A · 600m (415V)63A · 600m (415V)80A · 600m (415V)100A · 600m (415V)160A · 600m (415V)200A · 600m (415V)