400 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 400 A over 350 m (1148.3 ft).
Copper Cable (≤3% Drop)11× 400 mm²Drop: 1.36V (2.84%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 24.71V (51.48%)
Voltage at Load46.6 VLine Loss: 544.7 W
Max Power & Breaker19.2 kW400A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 400A 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 | 3994.67 V (8322.22%) | 0.0 V | 6589.33 V (13727.78%) | 1597866.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2396.8 V (4993.33%) | 0.0 V | 3953.6 V (8236.67%) | 958720.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1498.0 V (3120.83%) | 0.0 V | 2471.0 V (5147.92%) | 599200.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 998.67 V (2080.56%) | 0.0 V | 1647.33 V (3431.94%) | 399466.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 599.2 V (1248.33%) | 0.0 V | 988.4 V (2059.17%) | 239680.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 374.5 V (780.21%) | 0.0 V | 617.75 V (1286.98%) | 149800.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 239.68 V (499.33%) | 0.0 V | 395.36 V (823.67%) | 95872.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 171.2 V (356.67%) | 0.0 V | 282.4 V (588.33%) | 68480.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 119.84 V (249.67%) | 0.0 V | 197.68 V (411.83%) | 47936.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 85.6 V (178.33%) | 0.0 V | 141.2 V (294.17%) | 34240.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 63.07 V (131.4%) | 0.0 V | 104.04 V (216.75%) | 25229.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 49.93 V (104.03%) | 0.0 V | 82.37 V (171.6%) | 19973.3 W | Drop High |
| 150 mm² | 309 A | 241 A | 39.95 V (83.22%) | 8.1 V | 65.89 V (137.28%) | 15978.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 32.39 V (67.48%) | 15.6 V | 53.43 V (111.31%) | 12955.7 W | Drop High |
| 240 mm² | 415 A | 324 A | 24.97 V (52.01%) | 23.0 V | 41.18 V (85.8%) | 9986.7 W | Drop High |
| 300 mm² | 477 A | 372 A | 19.97 V (41.61%) | 28.0 V | 32.95 V (68.64%) | 7989.3 W | Drop High |
| 400 mm² | 570 A | 445 A | 14.98 V (31.21%) | 33.0 V | 24.71 V (51.48%) | 5992.0 W | Drop High |
FAQ — 400 Amp Cable Size at 350 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 400A at 350 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 11× 400 mm² copper cable for 400A over 350m at 48V (voltage drop: 1.36V or 2.84%).
What is the power capacity of 400A at 48V?
At unity power factor, 400A at 48V supports 19.2 kW with a standard 400A circuit breaker.
Related Lengths & Currents (48V)
400A · 5m (48V)400A · 10m (48V)400A · 15m (48V)400A · 20m (48V)400A · 25m (48V)400A · 30m (48V)400A · 35m (48V)400A · 40m (48V)400A · 45m (48V)400A · 50m (48V)400A · 60m (48V)400A · 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)