500 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 500 A over 45 m (147.6 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 1.21V (2.51%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.97V (8.27%)
Voltage at Load46.8 VLine Loss: 601.9 W
Max Power & Breaker24.0 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 500A 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 | 642.0 V (1337.5%) | 0.0 V | 1059.0 V (2206.25%) | 321000.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 385.2 V (802.5%) | 0.0 V | 635.4 V (1323.75%) | 192600.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 240.75 V (501.56%) | 0.0 V | 397.12 V (827.34%) | 120375.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 160.5 V (334.38%) | 0.0 V | 264.75 V (551.56%) | 80250.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 96.3 V (200.62%) | 0.0 V | 158.85 V (330.94%) | 48150.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 60.19 V (125.39%) | 0.0 V | 99.28 V (206.84%) | 30093.8 W | Drop High |
| 25 mm² | 101 A | 78 A | 38.52 V (80.25%) | 9.5 V | 63.54 V (132.37%) | 19260.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 27.51 V (57.32%) | 20.5 V | 45.39 V (94.55%) | 13757.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 19.26 V (40.12%) | 28.7 V | 31.77 V (66.19%) | 9630.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 13.76 V (28.66%) | 34.2 V | 22.69 V (47.28%) | 6878.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 10.14 V (21.12%) | 37.9 V | 16.72 V (34.84%) | 5068.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 8.02 V (16.72%) | 40.0 V | 13.24 V (27.58%) | 4012.5 W | Drop High |
| 150 mm² | 309 A | 241 A | 6.42 V (13.38%) | 41.6 V | 10.59 V (22.06%) | 3210.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 5.21 V (10.84%) | 42.8 V | 8.59 V (17.89%) | 2602.7 W | Drop High |
| 240 mm² | 415 A | 324 A | 4.01 V (8.36%) | 44.0 V | 6.62 V (13.79%) | 2006.2 W | Drop High |
| 300 mm² | 477 A | 372 A | 3.21 V (6.69%) | 44.8 V | 5.29 V (11.03%) | 1605.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 2.41 V (5.02%) | 45.6 V | 3.97 V (8.27%) | 1203.8 W | Drop High |
FAQ — 500 Amp Cable Size at 45 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 500A 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 500A over 45m at 48V (voltage drop: 1.21V or 2.51%).
What is the power capacity of 500A at 48V?
At unity power factor, 500A at 48V supports 24.0 kW with a standard 500A circuit breaker.
Related Lengths & Currents (48V)
500A · 5m (48V)500A · 10m (48V)500A · 15m (48V)500A · 20m (48V)500A · 25m (48V)500A · 30m (48V)500A · 35m (48V)500A · 40m (48V)500A · 50m (48V)500A · 60m (48V)500A · 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)