650 Amp Cable Size at 120 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 650 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)6× 400 mm²Drop: 1.39V (2.9%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 13.77V (28.68%)
Voltage at Load46.6 VLine Loss: 904.1 W
Max Power & Breaker31.2 kW700A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 650A 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 | 2225.6 V (4636.67%) | 0.0 V | 3671.2 V (7648.33%) | 1446640.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1335.36 V (2782.0%) | 0.0 V | 2202.72 V (4589.0%) | 867984.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 834.6 V (1738.75%) | 0.0 V | 1376.7 V (2868.12%) | 542490.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 556.4 V (1159.17%) | 0.0 V | 917.8 V (1912.08%) | 361660.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 333.84 V (695.5%) | 0.0 V | 550.68 V (1147.25%) | 216996.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 208.65 V (434.69%) | 0.0 V | 344.17 V (717.03%) | 135622.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 133.54 V (278.2%) | 0.0 V | 220.27 V (458.9%) | 86798.4 W | Drop High |
| 35 mm² | 125 A | 97 A | 95.38 V (198.71%) | 0.0 V | 157.34 V (327.79%) | 61998.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 66.77 V (139.1%) | 0.0 V | 110.14 V (229.45%) | 43399.2 W | Drop High |
| 70 mm² | 192 A | 150 A | 47.69 V (99.36%) | 0.3 V | 78.67 V (163.89%) | 30999.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 35.14 V (73.21%) | 12.9 V | 57.97 V (120.76%) | 22841.7 W | Drop High |
| 120 mm² | 269 A | 210 A | 27.82 V (57.96%) | 20.2 V | 45.89 V (95.6%) | 18083.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 22.26 V (46.37%) | 25.7 V | 36.71 V (76.48%) | 14466.4 W | Drop High |
| 185 mm² | 353 A | 275 A | 18.05 V (37.59%) | 30.0 V | 29.77 V (62.01%) | 11729.5 W | Drop High |
| 240 mm² | 415 A | 324 A | 13.91 V (28.98%) | 34.1 V | 22.95 V (47.8%) | 9041.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 11.13 V (23.18%) | 36.9 V | 18.36 V (38.24%) | 7233.2 W | Drop High |
| 400 mm² | 570 A | 445 A | 8.35 V (17.39%) | 39.7 V | 13.77 V (28.68%) | 5424.9 W | Drop High |
FAQ — 650 Amp Cable Size at 120 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 650A at 120 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6× 400 mm² copper cable for 650A over 120m at 48V (voltage drop: 1.39V or 2.9%).
What is the power capacity of 650A at 48V?
At unity power factor, 650A at 48V supports 31.2 kW with a standard 700A circuit breaker.
Related Lengths & Currents (48V)
650A · 5m (48V)650A · 10m (48V)650A · 15m (48V)650A · 20m (48V)650A · 25m (48V)650A · 30m (48V)650A · 35m (48V)650A · 40m (48V)650A · 45m (48V)650A · 50m (48V)650A · 60m (48V)650A · 70m (48V)10A · 120m (48V)16A · 120m (48V)20A · 120m (48V)25A · 120m (48V)32A · 120m (48V)40A · 120m (48V)50A · 120m (48V)63A · 120m (48V)80A · 120m (48V)100A · 120m (48V)125A · 120m (48V)160A · 120m (48V)200A · 120m (48V)