700 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 700 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)7× 400 mm²Drop: 1.28V (2.68%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 14.83V (30.89%)
Voltage at Load46.7 VLine Loss: 898.8 W
Max Power & Breaker33.6 kW700A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 700A 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 | 2396.8 V (4993.33%) | 0.0 V | 3953.6 V (8236.67%) | 1677760.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1438.08 V (2996.0%) | 0.0 V | 2372.16 V (4942.0%) | 1006656.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 898.8 V (1872.5%) | 0.0 V | 1482.6 V (3088.75%) | 629160.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 599.2 V (1248.33%) | 0.0 V | 988.4 V (2059.17%) | 419440.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 359.52 V (749.0%) | 0.0 V | 593.04 V (1235.5%) | 251664.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 224.7 V (468.13%) | 0.0 V | 370.65 V (772.19%) | 157290.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 143.81 V (299.6%) | 0.0 V | 237.22 V (494.2%) | 100665.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 102.72 V (214.0%) | 0.0 V | 169.44 V (353.0%) | 71904.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 71.9 V (149.8%) | 0.0 V | 118.61 V (247.1%) | 50332.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 51.36 V (107.0%) | 0.0 V | 84.72 V (176.5%) | 35952.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 37.84 V (78.84%) | 10.2 V | 62.43 V (130.05%) | 26490.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 29.96 V (62.42%) | 18.0 V | 49.42 V (102.96%) | 20972.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 23.97 V (49.93%) | 24.0 V | 39.54 V (82.37%) | 16777.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 19.43 V (40.49%) | 28.6 V | 32.06 V (66.78%) | 13603.5 W | Drop High |
| 240 mm² | 415 A | 324 A | 14.98 V (31.21%) | 33.0 V | 24.71 V (51.48%) | 10486.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 11.98 V (24.97%) | 36.0 V | 19.77 V (41.18%) | 8388.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 8.99 V (18.73%) | 39.0 V | 14.83 V (30.89%) | 6291.6 W | Drop High |
FAQ — 700 Amp Cable Size at 120 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 700A at 120 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 7× 400 mm² copper cable for 700A over 120m at 48V (voltage drop: 1.28V or 2.68%).
What is the power capacity of 700A at 48V?
At unity power factor, 700A at 48V supports 33.6 kW with a standard 700A circuit breaker.
Related Lengths & Currents (48V)
700A · 5m (48V)700A · 10m (48V)700A · 15m (48V)700A · 20m (48V)700A · 25m (48V)700A · 30m (48V)700A · 35m (48V)700A · 40m (48V)700A · 45m (48V)700A · 50m (48V)700A · 60m (48V)700A · 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)