300 Amp Cable Size at 10 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 300 A over 10 m (32.8 ft).
Copper Cable (≤3% Drop)150 mm²Drop: 0.86V (1.78%)
Aluminum Cable (≤3% Drop)240 mm²Drop: 0.88V (1.84%)
Voltage at Load47.1 VLine Loss: 256.8 W
Max Power & Breaker14.4 kW300A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 300A at 10m
| 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 | 85.6 V (178.33%) | 0.0 V | 141.2 V (294.17%) | 25680.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 51.36 V (107.0%) | 0.0 V | 84.72 V (176.5%) | 15408.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 32.1 V (66.88%) | 15.9 V | 52.95 V (110.31%) | 9630.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 21.4 V (44.58%) | 26.6 V | 35.3 V (73.54%) | 6420.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 12.84 V (26.75%) | 35.2 V | 21.18 V (44.12%) | 3852.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 8.03 V (16.72%) | 40.0 V | 13.24 V (27.58%) | 2407.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 5.14 V (10.7%) | 42.9 V | 8.47 V (17.65%) | 1540.8 W | Drop High |
| 35 mm² | 125 A | 97 A | 3.67 V (7.64%) | 44.3 V | 6.05 V (12.61%) | 1100.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 2.57 V (5.35%) | 45.4 V | 4.24 V (8.82%) | 770.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.83 V (3.82%) | 46.2 V | 3.03 V (6.3%) | 550.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 1.35 V (2.82%) | 46.6 V | 2.23 V (4.64%) | 405.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 1.07 V (2.23%) | 46.9 V | 1.76 V (3.68%) | 321.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 0.86 V (1.78%) | 47.1 V | 1.41 V (2.94%) | 256.8 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.69 V (1.45%) | 47.3 V | 1.14 V (2.39%) | 208.2 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.54 V (1.11%) | 47.5 V | 0.88 V (1.84%) | 160.5 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.43 V (0.89%) | 47.6 V | 0.71 V (1.47%) | 128.4 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.32 V (0.67%) | 47.7 V | 0.53 V (1.1%) | 96.3 W | ✓ OK (≤3%) |
FAQ — 300 Amp Cable Size at 10 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 300A at 10 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 150 mm² copper cable for 300A over 10m at 48V (voltage drop: 0.86V or 1.78%).
What is the power capacity of 300A at 48V?
At unity power factor, 300A at 48V supports 14.4 kW with a standard 300A circuit breaker.
Related Lengths & Currents (48V)
300A · 5m (48V)300A · 15m (48V)300A · 20m (48V)300A · 25m (48V)300A · 30m (48V)300A · 35m (48V)300A · 40m (48V)300A · 45m (48V)300A · 50m (48V)300A · 60m (48V)300A · 70m (48V)10A · 10m (48V)16A · 10m (48V)20A · 10m (48V)25A · 10m (48V)32A · 10m (48V)40A · 10m (48V)50A · 10m (48V)63A · 10m (48V)80A · 10m (48V)100A · 10m (48V)125A · 10m (48V)160A · 10m (48V)200A · 10m (48V)