375 Amp Cable Size at 120 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 375 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)240 mm²Drop: 6.95V (1.67%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 6.88V (1.66%)
Voltage at Load408.1 VLine Loss: 4514.1 W
Max Power & Breaker269.55 kW400A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 375A at 120m
| 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 | 1111.98 V (267.95%) | 0.0 V | 1834.24 V (441.99%) | 722250.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 667.19 V (160.77%) | 0.0 V | 1100.55 V (265.19%) | 433350.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 416.99 V (100.48%) | 0.0 V | 687.84 V (165.74%) | 270843.8 W | Drop High |
| 6 mm² | 41 A | 32 A | 277.99 V (66.99%) | 137.0 V | 458.56 V (110.5%) | 180562.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 166.8 V (40.19%) | 248.2 V | 275.14 V (66.3%) | 108337.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 104.25 V (25.12%) | 310.8 V | 171.96 V (41.44%) | 67710.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 66.72 V (16.08%) | 348.3 V | 110.05 V (26.52%) | 43335.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 47.66 V (11.48%) | 367.3 V | 78.61 V (18.94%) | 30953.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 33.36 V (8.04%) | 381.6 V | 55.03 V (13.26%) | 21667.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 23.83 V (5.74%) | 391.2 V | 39.31 V (9.47%) | 15476.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 17.56 V (4.23%) | 397.4 V | 28.96 V (6.98%) | 11403.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 13.9 V (3.35%) | 401.1 V | 22.93 V (5.52%) | 9028.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 11.12 V (2.68%) | 403.9 V | 18.34 V (4.42%) | 7222.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 9.02 V (2.17%) | 406.0 V | 14.87 V (3.58%) | 5856.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 6.95 V (1.67%) | 408.1 V | 11.46 V (2.76%) | 4514.1 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 5.56 V (1.34%) | 409.4 V | 9.17 V (2.21%) | 3611.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 4.17 V (1.0%) | 410.8 V | 6.88 V (1.66%) | 2708.4 W | ✓ OK (≤3%) |
FAQ — 375 Amp Cable Size at 120 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 375A at 120 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 375A over 120m at 415V (voltage drop: 6.95V or 1.67%).
What is the power capacity of 375A at 415V?
At unity power factor, 375A at 415V supports 269.55 kW with a standard 400A circuit breaker.
Related Lengths & Currents (415V)
375A · 5m (415V)375A · 10m (415V)375A · 15m (415V)375A · 20m (415V)375A · 25m (415V)375A · 30m (415V)375A · 35m (415V)375A · 40m (415V)375A · 45m (415V)375A · 50m (415V)375A · 60m (415V)375A · 70m (415V)10A · 120m (415V)16A · 120m (415V)20A · 120m (415V)25A · 120m (415V)32A · 120m (415V)40A · 120m (415V)50A · 120m (415V)63A · 120m (415V)80A · 120m (415V)100A · 120m (415V)125A · 120m (415V)160A · 120m (415V)200A · 120m (415V)