425 Amp Cable Size at 300 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 300 m (984.3 ft).
Copper Cable (≤3% Drop)10× 400 mm²Drop: 1.36V (2.84%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 22.5V (46.88%)
Voltage at Load46.6 VLine Loss: 579.8 W
Max Power & Breaker20.4 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 300m
| 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 | 3638.0 V (7579.17%) | 0.0 V | 6001.0 V (12502.08%) | 1546150.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2182.8 V (4547.5%) | 0.0 V | 3600.6 V (7501.25%) | 927690.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1364.25 V (2842.19%) | 0.0 V | 2250.38 V (4688.28%) | 579806.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 909.5 V (1894.79%) | 0.0 V | 1500.25 V (3125.52%) | 386537.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 545.7 V (1136.88%) | 0.0 V | 900.15 V (1875.31%) | 231922.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 341.06 V (710.55%) | 0.0 V | 562.59 V (1172.07%) | 144951.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 218.28 V (454.75%) | 0.0 V | 360.06 V (750.12%) | 92769.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 155.91 V (324.82%) | 0.0 V | 257.19 V (535.8%) | 66263.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 109.14 V (227.37%) | 0.0 V | 180.03 V (375.06%) | 46384.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 77.96 V (162.41%) | 0.0 V | 128.59 V (267.9%) | 33131.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 57.44 V (119.67%) | 0.0 V | 94.75 V (197.4%) | 24412.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 45.48 V (94.74%) | 2.5 V | 75.01 V (156.28%) | 19326.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 36.38 V (75.79%) | 11.6 V | 60.01 V (125.02%) | 15461.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 29.5 V (61.45%) | 18.5 V | 48.66 V (101.37%) | 12536.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 22.74 V (47.37%) | 25.3 V | 37.51 V (78.14%) | 9663.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 18.19 V (37.9%) | 29.8 V | 30.0 V (62.51%) | 7730.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 13.64 V (28.42%) | 34.4 V | 22.5 V (46.88%) | 5798.1 W | Drop High |
FAQ — 425 Amp Cable Size at 300 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 425A at 300 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 10× 400 mm² copper cable for 425A over 300m at 48V (voltage drop: 1.36V or 2.84%).
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 · 35m (48V)425A · 40m (48V)425A · 45m (48V)425A · 50m (48V)425A · 60m (48V)425A · 70m (48V)10A · 300m (48V)16A · 300m (48V)20A · 300m (48V)25A · 300m (48V)32A · 300m (48V)40A · 300m (48V)50A · 300m (48V)63A · 300m (48V)80A · 300m (48V)100A · 300m (48V)125A · 300m (48V)160A · 300m (48V)200A · 300m (48V)