325 Amp Cable Size at 5 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 5 m (16.4 ft).
Copper Cable (≤3% Drop)185 mm²Drop: 0.38V (0.78%)
Aluminum Cable (≤3% Drop)300 mm²Drop: 0.38V (0.8%)
Voltage at Load47.6 VLine Loss: 122.2 W
Max Power & Breaker15.6 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A at 5m
| 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 | 46.37 V (96.6%) | 1.6 V | 76.48 V (159.34%) | 15069.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 27.82 V (57.96%) | 20.2 V | 45.89 V (95.6%) | 9041.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 17.39 V (36.22%) | 30.6 V | 28.68 V (59.75%) | 5650.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 11.59 V (24.15%) | 36.4 V | 19.12 V (39.84%) | 3767.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 6.96 V (14.49%) | 41.0 V | 11.47 V (23.9%) | 2260.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 4.35 V (9.06%) | 43.7 V | 7.17 V (14.94%) | 1412.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 2.78 V (5.8%) | 45.2 V | 4.59 V (9.56%) | 904.1 W | Drop High |
| 35 mm² | 125 A | 97 A | 1.99 V (4.14%) | 46.0 V | 3.28 V (6.83%) | 645.8 W | Drop High |
| 50 mm² | 151 A | 118 A | 1.39 V (2.9%) | 46.6 V | 2.29 V (4.78%) | 452.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 0.99 V (2.07%) | 47.0 V | 1.64 V (3.41%) | 322.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 0.73 V (1.53%) | 47.3 V | 1.21 V (2.52%) | 237.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 0.58 V (1.21%) | 47.4 V | 0.96 V (1.99%) | 188.4 W | Drop High |
| 150 mm² | 309 A | 241 A | 0.46 V (0.97%) | 47.5 V | 0.76 V (1.59%) | 150.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 0.38 V (0.78%) | 47.6 V | 0.62 V (1.29%) | 122.2 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.29 V (0.6%) | 47.7 V | 0.48 V (1.0%) | 94.2 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.23 V (0.48%) | 47.8 V | 0.38 V (0.8%) | 75.3 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.17 V (0.36%) | 47.8 V | 0.29 V (0.6%) | 56.5 W | ✓ OK (≤3%) |
FAQ — 325 Amp Cable Size at 5 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 325A at 5 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 185 mm² copper cable for 325A over 5m at 48V (voltage drop: 0.38V or 0.78%).
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 · 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 · 5m (48V)16A · 5m (48V)20A · 5m (48V)25A · 5m (48V)32A · 5m (48V)40A · 5m (48V)50A · 5m (48V)63A · 5m (48V)80A · 5m (48V)100A · 5m (48V)125A · 5m (48V)160A · 5m (48V)200A · 5m (48V)