5 Amp Cable Size at 50 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 5 A over 50 m (164.0 ft).
Copper Cable (≤3% Drop)10 mm²Drop: 1.07V (2.23%)
Aluminum Cable (≤3% Drop)16 mm²Drop: 1.1V (2.3%)
Voltage at Load46.9 VLine Loss: 5.3 W
Max Power & Breaker0.24 kW6A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 5A at 50m
| 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 | 7.13 V (14.86%) | 40.9 V | 11.77 V (24.51%) | 35.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 4.28 V (8.92%) | 43.7 V | 7.06 V (14.71%) | 21.4 W | Drop High |
| 4 mm² | 32 A | 25 A | 2.67 V (5.57%) | 45.3 V | 4.41 V (9.19%) | 13.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 1.78 V (3.72%) | 46.2 V | 2.94 V (6.13%) | 8.9 W | ~ ≤5% |
| 10 mm² | 57 A | 44 A | 1.07 V (2.23%) | 46.9 V | 1.76 V (3.68%) | 5.3 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 0.67 V (1.39%) | 47.3 V | 1.1 V (2.3%) | 3.3 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 0.43 V (0.89%) | 47.6 V | 0.71 V (1.47%) | 2.1 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 0.31 V (0.64%) | 47.7 V | 0.5 V (1.05%) | 1.5 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 0.21 V (0.45%) | 47.8 V | 0.35 V (0.74%) | 1.1 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.15 V (0.32%) | 47.8 V | 0.25 V (0.53%) | 0.8 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.11 V (0.23%) | 47.9 V | 0.19 V (0.39%) | 0.6 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.09 V (0.19%) | 47.9 V | 0.15 V (0.31%) | 0.4 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.07 V (0.15%) | 47.9 V | 0.12 V (0.25%) | 0.4 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.06 V (0.12%) | 47.9 V | 0.1 V (0.2%) | 0.3 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.04 V (0.09%) | 48.0 V | 0.07 V (0.15%) | 0.2 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.04 V (0.07%) | 48.0 V | 0.06 V (0.12%) | 0.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.03 V (0.06%) | 48.0 V | 0.04 V (0.09%) | 0.1 W | ✓ OK (≤3%) |
FAQ — 5 Amp Cable Size at 50 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 5A at 50 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 10 mm² copper cable for 5A over 50m at 48V (voltage drop: 1.07V or 2.23%).
What is the power capacity of 5A at 48V?
At unity power factor, 5A at 48V supports 0.24 kW with a standard 6A circuit breaker.
Related Lengths & Currents (48V)
5A · 5m (48V)5A · 10m (48V)5A · 15m (48V)5A · 20m (48V)5A · 25m (48V)5A · 30m (48V)5A · 35m (48V)5A · 40m (48V)5A · 45m (48V)5A · 60m (48V)5A · 70m (48V)10A · 50m (48V)16A · 50m (48V)20A · 50m (48V)25A · 50m (48V)32A · 50m (48V)40A · 50m (48V)50A · 50m (48V)63A · 50m (48V)80A · 50m (48V)100A · 50m (48V)125A · 50m (48V)160A · 50m (48V)200A · 50m (48V)