550 Amp Cable Size at 45 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 45 m (147.6 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 1.32V (2.76%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 4.37V (9.1%)
Voltage at Load46.7 VLine Loss: 728.2 W
Max Power & Breaker26.4 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 45m
| 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 | 706.2 V (1471.25%) | 0.0 V | 1164.9 V (2426.87%) | 388410.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 423.72 V (882.75%) | 0.0 V | 698.94 V (1456.12%) | 233046.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 264.82 V (551.72%) | 0.0 V | 436.84 V (910.08%) | 145653.8 W | Drop High |
| 6 mm² | 41 A | 32 A | 176.55 V (367.81%) | 0.0 V | 291.22 V (606.72%) | 97102.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 105.93 V (220.69%) | 0.0 V | 174.73 V (364.03%) | 58261.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 66.21 V (137.93%) | 0.0 V | 109.21 V (227.52%) | 36413.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 42.37 V (88.28%) | 5.6 V | 69.89 V (145.61%) | 23304.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 30.27 V (63.05%) | 17.7 V | 49.92 V (104.01%) | 16646.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 21.19 V (44.14%) | 26.8 V | 34.95 V (72.81%) | 11652.3 W | Drop High |
| 70 mm² | 192 A | 150 A | 15.13 V (31.53%) | 32.9 V | 24.96 V (52.0%) | 8323.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 11.15 V (23.23%) | 36.8 V | 18.39 V (38.32%) | 6132.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 8.83 V (18.39%) | 39.2 V | 14.56 V (30.34%) | 4855.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 7.06 V (14.71%) | 40.9 V | 11.65 V (24.27%) | 3884.1 W | Drop High |
| 185 mm² | 353 A | 275 A | 5.73 V (11.93%) | 42.3 V | 9.45 V (19.68%) | 3149.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 4.41 V (9.2%) | 43.6 V | 7.28 V (15.17%) | 2427.6 W | Drop High |
| 300 mm² | 477 A | 372 A | 3.53 V (7.36%) | 44.5 V | 5.82 V (12.13%) | 1942.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 2.65 V (5.52%) | 45.4 V | 4.37 V (9.1%) | 1456.5 W | Drop High |
FAQ — 550 Amp Cable Size at 45 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 550A at 45 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 550A over 45m at 48V (voltage drop: 1.32V or 2.76%).
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 · 50m (48V)550A · 60m (48V)550A · 70m (48V)10A · 45m (48V)16A · 45m (48V)20A · 45m (48V)25A · 45m (48V)32A · 45m (48V)40A · 45m (48V)50A · 45m (48V)63A · 45m (48V)80A · 45m (48V)100A · 45m (48V)125A · 45m (48V)160A · 45m (48V)200A · 45m (48V)