750 Amp Cable Size at 25 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 25 m (82.0 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 1.0V (2.09%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.31V (6.89%)
Voltage at Load47.0 VLine Loss: 752.4 W
Max Power & Breaker36.0 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 750A at 25m
| 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 | 535.0 V (1114.58%) | 0.0 V | 882.5 V (1838.54%) | 401250.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 321.0 V (668.75%) | 0.0 V | 529.5 V (1103.12%) | 240750.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 200.62 V (417.97%) | 0.0 V | 330.94 V (689.45%) | 150468.7 W | Drop High |
| 6 mm² | 41 A | 32 A | 133.75 V (278.65%) | 0.0 V | 220.62 V (459.64%) | 100312.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 80.25 V (167.19%) | 0.0 V | 132.38 V (275.78%) | 60187.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 50.16 V (104.49%) | 0.0 V | 82.73 V (172.36%) | 37617.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 32.1 V (66.87%) | 15.9 V | 52.95 V (110.31%) | 24075.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 22.93 V (47.77%) | 25.1 V | 37.82 V (78.79%) | 17196.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 16.05 V (33.44%) | 32.0 V | 26.47 V (55.16%) | 12037.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 11.46 V (23.88%) | 36.5 V | 18.91 V (39.4%) | 8598.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 8.45 V (17.6%) | 39.6 V | 13.93 V (29.03%) | 6335.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 6.69 V (13.93%) | 41.3 V | 11.03 V (22.98%) | 5015.6 W | Drop High |
| 150 mm² | 309 A | 241 A | 5.35 V (11.15%) | 42.6 V | 8.82 V (18.39%) | 4012.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 4.34 V (9.04%) | 43.7 V | 7.16 V (14.91%) | 3253.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 3.34 V (6.97%) | 44.7 V | 5.52 V (11.49%) | 2507.8 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.67 V (5.57%) | 45.3 V | 4.41 V (9.19%) | 2006.2 W | Drop High |
| 400 mm² | 570 A | 445 A | 2.01 V (4.18%) | 46.0 V | 3.31 V (6.89%) | 1504.7 W | Drop High |
FAQ — 750 Amp Cable Size at 25 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 750A at 25 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 750A over 25m at 48V (voltage drop: 1.0V or 2.09%).
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 · 30m (48V)750A · 35m (48V)750A · 40m (48V)750A · 45m (48V)750A · 50m (48V)750A · 60m (48V)750A · 70m (48V)10A · 25m (48V)16A · 25m (48V)20A · 25m (48V)25A · 25m (48V)32A · 25m (48V)40A · 25m (48V)50A · 25m (48V)63A · 25m (48V)80A · 25m (48V)100A · 25m (48V)125A · 25m (48V)160A · 25m (48V)200A · 25m (48V)