550 Amp Cable Size at 50 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 50 m (164.0 ft).
Copper Cable (≤3% Drop)3× 400 mm²Drop: 0.98V (2.04%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 4.85V (10.11%)
Voltage at Load47.0 VLine Loss: 539.5 W
Max Power & Breaker26.4 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 50m
| 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 | 784.67 V (1634.72%) | 0.0 V | 1294.33 V (2696.53%) | 431566.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 470.8 V (980.83%) | 0.0 V | 776.6 V (1617.92%) | 258940.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 294.25 V (613.02%) | 0.0 V | 485.38 V (1011.2%) | 161837.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 196.17 V (408.68%) | 0.0 V | 323.58 V (674.13%) | 107891.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 117.7 V (245.21%) | 0.0 V | 194.15 V (404.48%) | 64735.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 73.56 V (153.26%) | 0.0 V | 121.34 V (252.8%) | 40459.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 47.08 V (98.08%) | 0.9 V | 77.66 V (161.79%) | 25894.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 33.63 V (70.06%) | 14.4 V | 55.47 V (115.57%) | 18495.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 23.54 V (49.04%) | 24.5 V | 38.83 V (80.9%) | 12947.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 16.81 V (35.03%) | 31.2 V | 27.74 V (57.78%) | 9247.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 12.39 V (25.81%) | 35.6 V | 20.44 V (42.58%) | 6814.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 9.81 V (20.43%) | 38.2 V | 16.18 V (33.71%) | 5394.6 W | Drop High |
| 150 mm² | 309 A | 241 A | 7.85 V (16.35%) | 40.2 V | 12.94 V (26.97%) | 4315.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 6.36 V (13.25%) | 41.6 V | 10.49 V (21.86%) | 3499.2 W | Drop High |
| 240 mm² | 415 A | 324 A | 4.9 V (10.22%) | 43.1 V | 8.09 V (16.85%) | 2697.3 W | Drop High |
| 300 mm² | 477 A | 372 A | 3.92 V (8.17%) | 44.1 V | 6.47 V (13.48%) | 2157.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 2.94 V (6.13%) | 45.1 V | 4.85 V (10.11%) | 1618.4 W | Drop High |
FAQ — 550 Amp Cable Size at 50 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 550A at 50 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 3× 400 mm² copper cable for 550A over 50m at 48V (voltage drop: 0.98V or 2.04%).
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 · 60m (48V)550A · 70m (48V)10A · 50m (48V)16A · 50m (48V)20A · 50m (48V)25A · 50m (48V)32A · 50m (48V)40A · 50m (48V)50A · 50m (48V)63A · 50m (48V)80A · 50m (48V)100A · 50m (48V)125A · 50m (48V)160A · 50m (48V)200A · 50m (48V)