550 Amp Cable Size at 400 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 550 A over 400 m (1312.3 ft).
Copper Cable (≤3% Drop)17× 400 mm²Drop: 1.38V (2.88%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 38.83V (80.9%)
Voltage at Load46.6 VLine Loss: 761.6 W
Max Power & Breaker26.4 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 400m
| 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 | 6277.33 V (13077.78%) | 0.0 V | 10354.67 V (21572.22%) | 3452533.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 3766.4 V (7846.67%) | 0.0 V | 6212.8 V (12943.33%) | 2071520.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2354.0 V (4904.17%) | 0.0 V | 3883.0 V (8089.58%) | 1294700.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1569.33 V (3269.44%) | 0.0 V | 2588.67 V (5393.06%) | 863133.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 941.6 V (1961.67%) | 0.0 V | 1553.2 V (3235.83%) | 517880.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 588.5 V (1226.04%) | 0.0 V | 970.75 V (2022.4%) | 323675.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 376.64 V (784.67%) | 0.0 V | 621.28 V (1294.33%) | 207152.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 269.03 V (560.48%) | 0.0 V | 443.77 V (924.52%) | 147965.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 188.32 V (392.33%) | 0.0 V | 310.64 V (647.17%) | 103576.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 134.51 V (280.24%) | 0.0 V | 221.89 V (462.26%) | 73982.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 99.12 V (206.49%) | 0.0 V | 163.49 V (340.61%) | 54513.7 W | Drop High |
| 120 mm² | 269 A | 210 A | 78.47 V (163.47%) | 0.0 V | 129.43 V (269.65%) | 43156.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 62.77 V (130.78%) | 0.0 V | 103.55 V (215.72%) | 34525.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 50.9 V (106.04%) | 0.0 V | 83.96 V (174.91%) | 27993.5 W | Drop High |
| 240 mm² | 415 A | 324 A | 39.23 V (81.74%) | 8.8 V | 64.72 V (134.83%) | 21578.3 W | Drop High |
| 300 mm² | 477 A | 372 A | 31.39 V (65.39%) | 16.6 V | 51.77 V (107.86%) | 17262.7 W | Drop High |
| 400 mm² | 570 A | 445 A | 23.54 V (49.04%) | 24.5 V | 38.83 V (80.9%) | 12947.0 W | Drop High |
FAQ — 550 Amp Cable Size at 400 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 550A at 400 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 17× 400 mm² copper cable for 550A over 400m at 48V (voltage drop: 1.38V or 2.88%).
What is the power capacity of 550A at 48V?
At unity power factor, 550A at 48V supports 26.4 kW with a standard 600A circuit breaker.
Related Lengths & Currents (48V)
550A · 5m (48V)550A · 10m (48V)550A · 15m (48V)550A · 20m (48V)550A · 25m (48V)550A · 30m (48V)550A · 35m (48V)550A · 40m (48V)550A · 45m (48V)550A · 50m (48V)550A · 60m (48V)550A · 70m (48V)10A · 400m (48V)16A · 400m (48V)20A · 400m (48V)25A · 400m (48V)32A · 400m (48V)40A · 400m (48V)50A · 400m (48V)63A · 400m (48V)80A · 400m (48V)100A · 400m (48V)125A · 400m (48V)160A · 400m (48V)200A · 400m (48V)