425 Amp Cable Size at 35 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 35 m (114.8 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.8V (1.66%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 2.63V (5.47%)
Voltage at Load47.2 VLine Loss: 338.2 W
Max Power & Breaker20.4 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 35m
| 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 | 424.43 V (884.24%) | 0.0 V | 700.12 V (1458.58%) | 180384.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 254.66 V (530.54%) | 0.0 V | 420.07 V (875.15%) | 108230.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 159.16 V (331.59%) | 0.0 V | 262.54 V (546.97%) | 67644.1 W | Drop High |
| 6 mm² | 41 A | 32 A | 106.11 V (221.06%) | 0.0 V | 175.03 V (364.64%) | 45096.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 63.66 V (132.64%) | 0.0 V | 105.02 V (218.79%) | 27057.6 W | Drop High |
| 16 mm² | 76 A | 59 A | 39.79 V (82.9%) | 8.2 V | 65.64 V (136.74%) | 16911.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 25.47 V (53.05%) | 22.5 V | 42.01 V (87.51%) | 10823.1 W | Drop High |
| 35 mm² | 125 A | 97 A | 18.19 V (37.9%) | 29.8 V | 30.0 V (62.51%) | 7730.8 W | Drop High |
| 50 mm² | 151 A | 118 A | 12.73 V (26.53%) | 35.3 V | 21.0 V (43.76%) | 5411.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 9.09 V (18.95%) | 38.9 V | 15.0 V (31.26%) | 3865.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 6.7 V (13.96%) | 41.3 V | 11.05 V (23.03%) | 2848.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 5.31 V (11.05%) | 42.7 V | 8.75 V (18.23%) | 2254.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 4.24 V (8.84%) | 43.8 V | 7.0 V (14.59%) | 1803.8 W | Drop High |
| 185 mm² | 353 A | 275 A | 3.44 V (7.17%) | 44.6 V | 5.68 V (11.83%) | 1462.6 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.65 V (5.53%) | 45.3 V | 4.38 V (9.12%) | 1127.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.12 V (4.42%) | 45.9 V | 3.5 V (7.29%) | 901.9 W | ~ ≤5% |
| 400 mm² | 570 A | 445 A | 1.59 V (3.32%) | 46.4 V | 2.63 V (5.47%) | 676.4 W | ~ ≤5% |
FAQ — 425 Amp Cable Size at 35 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 425A at 35 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 425A over 35m at 48V (voltage drop: 0.8V or 1.66%).
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 · 5m (48V)425A · 10m (48V)425A · 15m (48V)425A · 20m (48V)425A · 25m (48V)425A · 30m (48V)425A · 40m (48V)425A · 45m (48V)425A · 50m (48V)425A · 60m (48V)425A · 70m (48V)10A · 35m (48V)16A · 35m (48V)20A · 35m (48V)25A · 35m (48V)32A · 35m (48V)40A · 35m (48V)50A · 35m (48V)63A · 35m (48V)80A · 35m (48V)100A · 35m (48V)125A · 35m (48V)160A · 35m (48V)200A · 35m (48V)