375 Amp Cable Size at 350 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 375 A over 350 m (1148.3 ft).
Copper Cable (≤3% Drop)20× 400 mm²Drop: 0.7V (2.93%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 23.17V (96.52%)
Voltage at Load23.3 VLine Loss: 263.3 W
Max Power & Breaker9.0 kW400A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 375A at 350m
| 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 | 3745.0 V (15604.17%) | 0.0 V | 6177.5 V (25739.58%) | 1404375.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2247.0 V (9362.5%) | 0.0 V | 3706.5 V (15443.75%) | 842625.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1404.37 V (5851.56%) | 0.0 V | 2316.56 V (9652.34%) | 526640.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 936.25 V (3901.04%) | 0.0 V | 1544.38 V (6434.9%) | 351093.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 561.75 V (2340.62%) | 0.0 V | 926.62 V (3860.94%) | 210656.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 351.09 V (1462.89%) | 0.0 V | 579.14 V (2413.09%) | 131660.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 224.7 V (936.25%) | 0.0 V | 370.65 V (1544.38%) | 84262.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 160.5 V (668.75%) | 0.0 V | 264.75 V (1103.12%) | 60187.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 112.35 V (468.12%) | 0.0 V | 185.32 V (772.19%) | 42131.2 W | Drop High |
| 70 mm² | 192 A | 150 A | 80.25 V (334.37%) | 0.0 V | 132.38 V (551.56%) | 30093.7 W | Drop High |
| 95 mm² | 232 A | 181 A | 59.13 V (246.38%) | 0.0 V | 97.54 V (406.41%) | 22174.3 W | Drop High |
| 120 mm² | 269 A | 210 A | 46.81 V (195.05%) | 0.0 V | 77.22 V (321.74%) | 17554.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 37.45 V (156.04%) | 0.0 V | 61.77 V (257.4%) | 14043.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 30.36 V (126.52%) | 0.0 V | 50.09 V (208.7%) | 11386.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 23.41 V (97.53%) | 0.6 V | 38.61 V (160.87%) | 8777.3 W | Drop High |
| 300 mm² | 477 A | 372 A | 18.72 V (78.02%) | 5.3 V | 30.89 V (128.7%) | 7021.9 W | Drop High |
| 400 mm² | 570 A | 445 A | 14.04 V (58.52%) | 10.0 V | 23.17 V (96.52%) | 5266.4 W | Drop High |
FAQ — 375 Amp Cable Size at 350 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 375A at 350 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 20× 400 mm² copper cable for 375A over 350m at 24V (voltage drop: 0.7V or 2.93%).
What is the power capacity of 375A at 24V?
At unity power factor, 375A at 24V supports 9.0 kW with a standard 400A circuit breaker.
Related Lengths & Currents (24V)
375A · 5m (24V)375A · 10m (24V)375A · 15m (24V)375A · 20m (24V)375A · 25m (24V)375A · 30m (24V)375A · 35m (24V)375A · 40m (24V)375A · 45m (24V)375A · 50m (24V)375A · 60m (24V)375A · 70m (24V)10A · 350m (24V)16A · 350m (24V)20A · 350m (24V)25A · 350m (24V)32A · 350m (24V)40A · 350m (24V)50A · 350m (24V)63A · 350m (24V)80A · 350m (24V)100A · 350m (24V)125A · 350m (24V)160A · 350m (24V)200A · 350m (24V)