425 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 425 A over 5 m (16.4 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 0.3V (0.63%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.38V (0.78%)
Voltage at Load47.7 VLine Loss: 128.8 W
Max Power & Breaker20.4 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A 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 | 60.63 V (126.32%) | 0.0 V | 100.02 V (208.37%) | 25769.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 36.38 V (75.79%) | 11.6 V | 60.01 V (125.02%) | 15461.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 22.74 V (47.37%) | 25.3 V | 37.51 V (78.14%) | 9663.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 15.16 V (31.58%) | 32.8 V | 25.0 V (52.09%) | 6442.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 9.09 V (18.95%) | 38.9 V | 15.0 V (31.26%) | 3865.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 5.68 V (11.84%) | 42.3 V | 9.38 V (19.53%) | 2415.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 3.64 V (7.58%) | 44.4 V | 6.0 V (12.5%) | 1546.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 2.6 V (5.41%) | 45.4 V | 4.29 V (8.93%) | 1104.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 1.82 V (3.79%) | 46.2 V | 3.0 V (6.25%) | 773.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.3 V (2.71%) | 46.7 V | 2.14 V (4.47%) | 552.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 0.96 V (1.99%) | 47.0 V | 1.58 V (3.29%) | 406.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 0.76 V (1.58%) | 47.2 V | 1.25 V (2.6%) | 322.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 0.61 V (1.26%) | 47.4 V | 1.0 V (2.08%) | 257.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 0.49 V (1.02%) | 47.5 V | 0.81 V (1.69%) | 208.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 0.38 V (0.79%) | 47.6 V | 0.63 V (1.3%) | 161.1 W | Drop High |
| 300 mm² | 477 A | 372 A | 0.3 V (0.63%) | 47.7 V | 0.5 V (1.04%) | 128.8 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.23 V (0.47%) | 47.8 V | 0.38 V (0.78%) | 96.6 W | ✓ OK (≤3%) |
FAQ — 425 Amp Cable Size at 5 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 425A at 5 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 425A over 5m at 48V (voltage drop: 0.3V or 0.63%).
What is the power capacity of 425A at 48V?
At unity power factor, 425A at 48V supports 20.4 kW with a standard 450A circuit breaker.
Related Lengths & Currents (48V)
425A · 10m (48V)425A · 15m (48V)425A · 20m (48V)425A · 25m (48V)425A · 30m (48V)425A · 35m (48V)425A · 40m (48V)425A · 45m (48V)425A · 50m (48V)425A · 60m (48V)425A · 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)