550 Amp Cable Size at 500 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 500 m (1640.4 ft).
Copper Cable (≤3% Drop)21× 400 mm²Drop: 1.4V (2.92%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 48.54V (101.12%)
Voltage at Load46.6 VLine Loss: 770.7 W
Max Power & Breaker26.4 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 500m
| 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 | 7846.67 V (16347.22%) | 0.0 V | 12943.33 V (26965.28%) | 4315666.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 4708.0 V (9808.33%) | 0.0 V | 7766.0 V (16179.17%) | 2589400.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2942.5 V (6130.21%) | 0.0 V | 4853.75 V (10111.98%) | 1618375.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1961.67 V (4086.81%) | 0.0 V | 3235.83 V (6741.32%) | 1078916.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 1177.0 V (2452.08%) | 0.0 V | 1941.5 V (4044.79%) | 647350.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 735.62 V (1532.55%) | 0.0 V | 1213.44 V (2527.99%) | 404593.8 W | Drop High |
| 25 mm² | 101 A | 78 A | 470.8 V (980.83%) | 0.0 V | 776.6 V (1617.92%) | 258940.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 336.29 V (700.6%) | 0.0 V | 554.71 V (1155.65%) | 184957.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 235.4 V (490.42%) | 0.0 V | 388.3 V (808.96%) | 129470.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 168.14 V (350.3%) | 0.0 V | 277.36 V (577.83%) | 92478.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 123.89 V (258.11%) | 0.0 V | 204.37 V (425.77%) | 68142.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 98.08 V (204.34%) | 0.0 V | 161.79 V (337.07%) | 53945.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 78.47 V (163.47%) | 0.0 V | 129.43 V (269.65%) | 43156.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 63.62 V (132.55%) | 0.0 V | 104.95 V (218.64%) | 34991.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 49.04 V (102.17%) | 0.0 V | 80.9 V (168.53%) | 26972.9 W | Drop High |
| 300 mm² | 477 A | 372 A | 39.23 V (81.74%) | 8.8 V | 64.72 V (134.83%) | 21578.3 W | Drop High |
| 400 mm² | 570 A | 445 A | 29.43 V (61.3%) | 18.6 V | 48.54 V (101.12%) | 16183.8 W | Drop High |
FAQ — 550 Amp Cable Size at 500 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 550A at 500 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 21× 400 mm² copper cable for 550A over 500m at 48V (voltage drop: 1.4V or 2.92%).
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 · 500m (48V)16A · 500m (48V)20A · 500m (48V)25A · 500m (48V)32A · 500m (48V)40A · 500m (48V)50A · 500m (48V)63A · 500m (48V)80A · 500m (48V)100A · 500m (48V)125A · 500m (48V)160A · 500m (48V)200A · 500m (48V)