325 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 325 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)3× 400 mm²Drop: 1.39V (2.9%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 6.88V (14.34%)
Voltage at Load46.6 VLine Loss: 452.1 W
Max Power & Breaker15.6 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A 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 | 1112.8 V (2318.33%) | 0.0 V | 1835.6 V (3824.17%) | 361660.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 667.68 V (1391.0%) | 0.0 V | 1101.36 V (2294.5%) | 216996.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 417.3 V (869.38%) | 0.0 V | 688.35 V (1434.06%) | 135622.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 278.2 V (579.58%) | 0.0 V | 458.9 V (956.04%) | 90415.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 166.92 V (347.75%) | 0.0 V | 275.34 V (573.62%) | 54249.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 104.33 V (217.34%) | 0.0 V | 172.09 V (358.52%) | 33905.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 66.77 V (139.1%) | 0.0 V | 110.14 V (229.45%) | 21699.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 47.69 V (99.36%) | 0.3 V | 78.67 V (163.89%) | 15499.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 33.38 V (69.55%) | 14.6 V | 55.07 V (114.72%) | 10849.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 23.85 V (49.68%) | 24.2 V | 39.33 V (81.95%) | 7749.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 17.57 V (36.61%) | 30.4 V | 28.98 V (60.38%) | 5710.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 13.91 V (28.98%) | 34.1 V | 22.95 V (47.8%) | 4520.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 11.13 V (23.18%) | 36.9 V | 18.36 V (38.24%) | 3616.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 9.02 V (18.8%) | 39.0 V | 14.88 V (31.01%) | 2932.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 6.96 V (14.49%) | 41.0 V | 11.47 V (23.9%) | 2260.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 5.56 V (11.59%) | 42.4 V | 9.18 V (19.12%) | 1808.3 W | Drop High |
| 400 mm² | 570 A | 445 A | 4.17 V (8.69%) | 43.8 V | 6.88 V (14.34%) | 1356.2 W | Drop High |
FAQ — 325 Amp Cable Size at 120 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 325A at 120 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 3× 400 mm² copper cable for 325A over 120m at 48V (voltage drop: 1.39V or 2.9%).
What is the power capacity of 325A at 48V?
At unity power factor, 325A at 48V supports 15.6 kW with a standard 350A circuit breaker.
Related Lengths & Currents (48V)
325A · 5m (48V)325A · 10m (48V)325A · 15m (48V)325A · 20m (48V)325A · 25m (48V)325A · 30m (48V)325A · 35m (48V)325A · 40m (48V)325A · 45m (48V)325A · 50m (48V)325A · 60m (48V)325A · 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)