375 Amp Cable Size at 250 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 375 A over 250 m (820.2 ft).
Copper Cable (≤3% Drop)7× 400 mm²Drop: 1.43V (2.99%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 16.55V (34.47%)
Voltage at Load46.6 VLine Loss: 537.4 W
Max Power & Breaker18.0 kW400A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 375A 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 | 2675.0 V (5572.92%) | 0.0 V | 4412.5 V (9192.71%) | 1003125.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1605.0 V (3343.75%) | 0.0 V | 2647.5 V (5515.62%) | 601875.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1003.12 V (2089.84%) | 0.0 V | 1654.69 V (3447.27%) | 376171.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 668.75 V (1393.23%) | 0.0 V | 1103.12 V (2298.18%) | 250781.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 401.25 V (835.94%) | 0.0 V | 661.88 V (1378.91%) | 150468.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 250.78 V (522.46%) | 0.0 V | 413.67 V (861.82%) | 94043.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 160.5 V (334.38%) | 0.0 V | 264.75 V (551.56%) | 60187.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 114.64 V (238.84%) | 0.0 V | 189.11 V (393.97%) | 42991.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 80.25 V (167.19%) | 0.0 V | 132.38 V (275.78%) | 30093.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 57.32 V (119.42%) | 0.0 V | 94.55 V (196.99%) | 21495.5 W | Drop High |
| 95 mm² | 232 A | 181 A | 42.24 V (87.99%) | 5.8 V | 69.67 V (145.15%) | 15838.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 33.44 V (69.66%) | 14.6 V | 55.16 V (114.91%) | 12539.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 26.75 V (55.73%) | 21.2 V | 44.12 V (91.93%) | 10031.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 21.69 V (45.19%) | 26.3 V | 35.78 V (74.54%) | 8133.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 16.72 V (34.83%) | 31.3 V | 27.58 V (57.45%) | 6269.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 13.38 V (27.86%) | 34.6 V | 22.06 V (45.96%) | 5015.6 W | Drop High |
| 400 mm² | 570 A | 445 A | 10.03 V (20.9%) | 38.0 V | 16.55 V (34.47%) | 3761.7 W | Drop High |
FAQ — 375 Amp Cable Size at 250 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 375A at 250 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 7× 400 mm² copper cable for 375A over 250m at 48V (voltage drop: 1.43V or 2.99%).
What is the power capacity of 375A at 48V?
At unity power factor, 375A at 48V supports 18.0 kW with a standard 400A circuit breaker.
Related Lengths & Currents (48V)
375A · 5m (48V)375A · 10m (48V)375A · 15m (48V)375A · 20m (48V)375A · 25m (48V)375A · 30m (48V)375A · 35m (48V)375A · 40m (48V)375A · 45m (48V)375A · 50m (48V)375A · 60m (48V)375A · 70m (48V)10A · 250m (48V)16A · 250m (48V)20A · 250m (48V)25A · 250m (48V)32A · 250m (48V)40A · 250m (48V)50A · 250m (48V)63A · 250m (48V)80A · 250m (48V)100A · 250m (48V)125A · 250m (48V)160A · 250m (48V)200A · 250m (48V)