550 Amp Cable Size at 5 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 5 m (16.4 ft).
Copper Cable (≤3% Drop)400 mm²Drop: 0.29V (0.61%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.49V (1.01%)
Voltage at Load47.7 VLine Loss: 161.8 W
Max Power & Breaker26.4 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 5m
| 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 | 78.47 V (163.47%) | 0.0 V | 129.43 V (269.65%) | 43156.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 47.08 V (98.08%) | 0.9 V | 77.66 V (161.79%) | 25894.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 29.43 V (61.3%) | 18.6 V | 48.54 V (101.12%) | 16183.8 W | Drop High |
| 6 mm² | 41 A | 32 A | 19.62 V (40.87%) | 28.4 V | 32.36 V (67.41%) | 10789.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 11.77 V (24.52%) | 36.2 V | 19.41 V (40.45%) | 6473.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 7.36 V (15.33%) | 40.6 V | 12.13 V (25.28%) | 4045.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 4.71 V (9.81%) | 43.3 V | 7.77 V (16.18%) | 2589.4 W | Drop High |
| 35 mm² | 125 A | 97 A | 3.36 V (7.01%) | 44.6 V | 5.55 V (11.56%) | 1849.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 2.35 V (4.9%) | 45.6 V | 3.88 V (8.09%) | 1294.7 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.68 V (3.5%) | 46.3 V | 2.77 V (5.78%) | 924.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 1.24 V (2.58%) | 46.8 V | 2.04 V (4.26%) | 681.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 0.98 V (2.04%) | 47.0 V | 1.62 V (3.37%) | 539.5 W | Drop High |
| 150 mm² | 309 A | 241 A | 0.78 V (1.63%) | 47.2 V | 1.29 V (2.7%) | 431.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 0.64 V (1.33%) | 47.4 V | 1.05 V (2.19%) | 349.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 0.49 V (1.02%) | 47.5 V | 0.81 V (1.69%) | 269.7 W | Drop High |
| 300 mm² | 477 A | 372 A | 0.39 V (0.82%) | 47.6 V | 0.65 V (1.35%) | 215.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 0.29 V (0.61%) | 47.7 V | 0.49 V (1.01%) | 161.8 W | ✓ OK (≤3%) |
FAQ — 550 Amp Cable Size at 5 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 550A at 5 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 550A over 5m at 48V (voltage drop: 0.29V or 0.61%).
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 · 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 · 5m (48V)16A · 5m (48V)20A · 5m (48V)25A · 5m (48V)32A · 5m (48V)40A · 5m (48V)50A · 5m (48V)63A · 5m (48V)80A · 5m (48V)100A · 5m (48V)125A · 5m (48V)160A · 5m (48V)200A · 5m (48V)