900 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 900 A over 300 m (984.3 ft).
Copper Cable (≤3% Drop)21× 400 mm²Drop: 1.38V (2.87%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 47.65V (99.28%)
Voltage at Load46.6 VLine Loss: 1238.1 W
Max Power & Breaker43.2 kW1000A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 900A 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 | 7704.0 V (16050.0%) | 0.0 V | 12708.0 V (26475.0%) | 6933600.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 4622.4 V (9630.0%) | 0.0 V | 7624.8 V (15885.0%) | 4160160.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2889.0 V (6018.75%) | 0.0 V | 4765.5 V (9928.12%) | 2600100.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1926.0 V (4012.5%) | 0.0 V | 3177.0 V (6618.75%) | 1733400.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1155.6 V (2407.5%) | 0.0 V | 1906.2 V (3971.25%) | 1040040.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 722.25 V (1504.69%) | 0.0 V | 1191.38 V (2482.03%) | 650025.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 462.24 V (963.0%) | 0.0 V | 762.48 V (1588.5%) | 416016.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 330.17 V (687.86%) | 0.0 V | 544.63 V (1134.64%) | 297154.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 231.12 V (481.5%) | 0.0 V | 381.24 V (794.25%) | 208008.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 165.09 V (343.93%) | 0.0 V | 272.31 V (567.32%) | 148577.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 121.64 V (253.42%) | 0.0 V | 200.65 V (418.03%) | 109477.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 96.3 V (200.62%) | 0.0 V | 158.85 V (330.94%) | 86670.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 77.04 V (160.5%) | 0.0 V | 127.08 V (264.75%) | 69336.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 62.46 V (130.14%) | 0.0 V | 103.04 V (214.66%) | 56218.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 48.15 V (100.31%) | 0.0 V | 79.42 V (165.47%) | 43335.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 38.52 V (80.25%) | 9.5 V | 63.54 V (132.38%) | 34668.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 28.89 V (60.19%) | 19.1 V | 47.65 V (99.28%) | 26001.0 W | Drop High |
FAQ — 900 Amp Cable Size at 300 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 900A at 300 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 21× 400 mm² copper cable for 900A over 300m at 48V (voltage drop: 1.38V or 2.87%).
What is the power capacity of 900A at 48V?
At unity power factor, 900A at 48V supports 43.2 kW with a standard 1000A circuit breaker.
Related Lengths & Currents (48V)
900A · 5m (48V)900A · 10m (48V)900A · 15m (48V)900A · 20m (48V)900A · 25m (48V)900A · 30m (48V)900A · 35m (48V)900A · 40m (48V)900A · 45m (48V)900A · 50m (48V)900A · 60m (48V)900A · 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)