375 Amp Cable Size at 120 Meters (230V Single-Phase (IEC Europe / UK / AU))
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)300 mm²Drop: 6.42V (2.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 7.94V (3.45%)
Voltage at Load223.6 VLine Loss: 2407.5 W
Max Power & Breaker86.25 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 | 1284.0 V (558.26%) | 0.0 V | 2118.0 V (920.87%) | 481500.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 770.4 V (334.96%) | 0.0 V | 1270.8 V (552.52%) | 288900.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 481.5 V (209.35%) | 0.0 V | 794.25 V (345.33%) | 180562.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 321.0 V (139.57%) | 0.0 V | 529.5 V (230.22%) | 120375.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 192.6 V (83.74%) | 37.4 V | 317.7 V (138.13%) | 72225.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 120.38 V (52.34%) | 109.6 V | 198.56 V (86.33%) | 45140.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 77.04 V (33.5%) | 153.0 V | 127.08 V (55.25%) | 28890.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 55.03 V (23.93%) | 175.0 V | 90.77 V (39.47%) | 20635.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 38.52 V (16.75%) | 191.5 V | 63.54 V (27.63%) | 14445.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 27.51 V (11.96%) | 202.5 V | 45.39 V (19.73%) | 10317.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 20.27 V (8.81%) | 209.7 V | 33.44 V (14.54%) | 7602.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 16.05 V (6.98%) | 213.9 V | 26.47 V (11.51%) | 6018.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 12.84 V (5.58%) | 217.2 V | 21.18 V (9.21%) | 4815.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 10.41 V (4.53%) | 219.6 V | 17.17 V (7.47%) | 3904.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 8.03 V (3.49%) | 222.0 V | 13.24 V (5.76%) | 3009.4 W | ~ ≤5% |
| 300 mm² | 477 A | 372 A | 6.42 V (2.79%) | 223.6 V | 10.59 V (4.6%) | 2407.5 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 4.82 V (2.09%) | 225.2 V | 7.94 V (3.45%) | 1805.6 W | ✓ OK (≤3%) |
FAQ — 375 Amp Cable Size at 120 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 375A at 120 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 375A over 120m at 230V (voltage drop: 6.42V or 2.79%).
What is the power capacity of 375A at 230V?
At unity power factor, 375A at 230V supports 86.25 kW with a standard 400A circuit breaker.
Related Lengths & Currents (230V)
375A · 5m (230V)375A · 10m (230V)375A · 15m (230V)375A · 20m (230V)375A · 25m (230V)375A · 30m (230V)375A · 35m (230V)375A · 40m (230V)375A · 45m (230V)375A · 50m (230V)375A · 60m (230V)375A · 70m (230V)10A · 120m (230V)16A · 120m (230V)20A · 120m (230V)25A · 120m (230V)32A · 120m (230V)40A · 120m (230V)50A · 120m (230V)63A · 120m (230V)80A · 120m (230V)100A · 120m (230V)125A · 120m (230V)160A · 120m (230V)200A · 120m (230V)