500 Amp Cable Size at 300 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 300 m (984.3 ft).
Copper Cable (≤3% Drop)12× 400 mm²Drop: 1.34V (2.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 26.47V (55.16%)
Voltage at Load46.7 VLine Loss: 668.8 W
Max Power & Breaker24.0 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 500A at 300m
| 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 | 4280.0 V (8916.67%) | 0.0 V | 7060.0 V (14708.33%) | 2140000.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2568.0 V (5350.0%) | 0.0 V | 4236.0 V (8825.0%) | 1284000.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1605.0 V (3343.75%) | 0.0 V | 2647.5 V (5515.62%) | 802500.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1070.0 V (2229.17%) | 0.0 V | 1765.0 V (3677.08%) | 535000.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 642.0 V (1337.5%) | 0.0 V | 1059.0 V (2206.25%) | 321000.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 401.25 V (835.94%) | 0.0 V | 661.88 V (1378.91%) | 200625.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 256.8 V (535.0%) | 0.0 V | 423.6 V (882.5%) | 128400.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 183.43 V (382.14%) | 0.0 V | 302.57 V (630.36%) | 91714.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 128.4 V (267.5%) | 0.0 V | 211.8 V (441.25%) | 64200.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 91.71 V (191.07%) | 0.0 V | 151.29 V (315.18%) | 45857.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 67.58 V (140.79%) | 0.0 V | 111.47 V (232.24%) | 33789.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 53.5 V (111.46%) | 0.0 V | 88.25 V (183.85%) | 26750.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 42.8 V (89.17%) | 5.2 V | 70.6 V (147.08%) | 21400.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 34.7 V (72.3%) | 13.3 V | 57.24 V (119.26%) | 17351.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 26.75 V (55.73%) | 21.2 V | 44.12 V (91.93%) | 13375.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 21.4 V (44.58%) | 26.6 V | 35.3 V (73.54%) | 10700.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 16.05 V (33.44%) | 32.0 V | 26.47 V (55.16%) | 8025.0 W | Drop High |
FAQ — 500 Amp Cable Size at 300 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 500A at 300 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 12× 400 mm² copper cable for 500A over 300m at 48V (voltage drop: 1.34V or 2.79%).
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 · 45m (48V)500A · 50m (48V)500A · 60m (48V)500A · 70m (48V)10A · 300m (48V)16A · 300m (48V)20A · 300m (48V)25A · 300m (48V)32A · 300m (48V)40A · 300m (48V)50A · 300m (48V)63A · 300m (48V)80A · 300m (48V)100A · 300m (48V)125A · 300m (48V)160A · 300m (48V)200A · 300m (48V)