750 Amp Cable Size at 350 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 750 A over 350 m (1148.3 ft).
Copper Cable (≤3% Drop)20× 400 mm²Drop: 1.4V (2.93%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 46.33V (96.52%)
Voltage at Load46.6 VLine Loss: 1053.3 W
Max Power & Breaker36.0 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 750A 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 | 7490.0 V (15604.17%) | 0.0 V | 12355.0 V (25739.58%) | 5617500.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 4494.0 V (9362.5%) | 0.0 V | 7413.0 V (15443.75%) | 3370500.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2808.75 V (5851.56%) | 0.0 V | 4633.12 V (9652.34%) | 2106562.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 1872.5 V (3901.04%) | 0.0 V | 3088.75 V (6434.9%) | 1404375.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1123.5 V (2340.62%) | 0.0 V | 1853.25 V (3860.94%) | 842625.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 702.19 V (1462.89%) | 0.0 V | 1158.28 V (2413.09%) | 526640.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 449.4 V (936.25%) | 0.0 V | 741.3 V (1544.38%) | 337050.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 321.0 V (668.75%) | 0.0 V | 529.5 V (1103.12%) | 240750.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 224.7 V (468.12%) | 0.0 V | 370.65 V (772.19%) | 168525.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 160.5 V (334.37%) | 0.0 V | 264.75 V (551.56%) | 120375.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 118.26 V (246.38%) | 0.0 V | 195.08 V (406.41%) | 88697.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 93.62 V (195.05%) | 0.0 V | 154.44 V (321.74%) | 70218.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 74.9 V (156.04%) | 0.0 V | 123.55 V (257.4%) | 56175.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 60.73 V (126.52%) | 0.0 V | 100.18 V (208.7%) | 45547.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 46.81 V (97.53%) | 1.2 V | 77.22 V (160.87%) | 35109.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 37.45 V (78.02%) | 10.6 V | 61.77 V (128.7%) | 28087.5 W | Drop High |
| 400 mm² | 570 A | 445 A | 28.09 V (58.52%) | 19.9 V | 46.33 V (96.52%) | 21065.6 W | Drop High |
FAQ — 750 Amp Cable Size at 350 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 750A at 350 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 20× 400 mm² copper cable for 750A over 350m at 48V (voltage drop: 1.4V or 2.93%).
What is the power capacity of 750A at 48V?
At unity power factor, 750A at 48V supports 36.0 kW with a standard 800A circuit breaker.
Related Lengths & Currents (48V)
750A · 5m (48V)750A · 10m (48V)750A · 15m (48V)750A · 20m (48V)750A · 25m (48V)750A · 30m (48V)750A · 35m (48V)750A · 40m (48V)750A · 45m (48V)750A · 50m (48V)750A · 60m (48V)750A · 70m (48V)10A · 350m (48V)16A · 350m (48V)20A · 350m (48V)25A · 350m (48V)32A · 350m (48V)40A · 350m (48V)50A · 350m (48V)63A · 350m (48V)80A · 350m (48V)100A · 350m (48V)125A · 350m (48V)160A · 350m (48V)200A · 350m (48V)