10 Amp Cable Size at 250 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 10 A over 250 m (820.2 ft).
Copper Cable (≤3% Drop)95 mm²Drop: 1.13V (2.35%)
Aluminum Cable (≤3% Drop)150 mm²Drop: 1.18V (2.45%)
Voltage at Load46.9 VLine Loss: 11.3 W
Max Power & Breaker0.48 kW10A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 10A at 250m
| 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 | 71.33 V (148.61%) | 0.0 V | 117.67 V (245.14%) | 713.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 42.8 V (89.17%) | 5.2 V | 70.6 V (147.08%) | 428.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 26.75 V (55.73%) | 21.2 V | 44.12 V (91.93%) | 267.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 17.83 V (37.15%) | 30.2 V | 29.42 V (61.28%) | 178.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 10.7 V (22.29%) | 37.3 V | 17.65 V (36.77%) | 107.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 6.69 V (13.93%) | 41.3 V | 11.03 V (22.98%) | 66.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 4.28 V (8.92%) | 43.7 V | 7.06 V (14.71%) | 42.8 W | Drop High |
| 35 mm² | 125 A | 97 A | 3.06 V (6.37%) | 44.9 V | 5.04 V (10.51%) | 30.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 2.14 V (4.46%) | 45.9 V | 3.53 V (7.35%) | 21.4 W | ~ ≤5% |
| 70 mm² | 192 A | 150 A | 1.53 V (3.18%) | 46.5 V | 2.52 V (5.25%) | 15.3 W | ~ ≤5% |
| 95 mm² | 232 A | 181 A | 1.13 V (2.35%) | 46.9 V | 1.86 V (3.87%) | 11.3 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.89 V (1.86%) | 47.1 V | 1.47 V (3.06%) | 8.9 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.71 V (1.49%) | 47.3 V | 1.18 V (2.45%) | 7.1 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.58 V (1.2%) | 47.4 V | 0.95 V (1.99%) | 5.8 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.45 V (0.93%) | 47.6 V | 0.74 V (1.53%) | 4.5 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.36 V (0.74%) | 47.6 V | 0.59 V (1.23%) | 3.6 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.27 V (0.56%) | 47.7 V | 0.44 V (0.92%) | 2.7 W | ✓ OK (≤3%) |
FAQ — 10 Amp Cable Size at 250 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 10A at 250 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 95 mm² copper cable for 10A over 250m at 48V (voltage drop: 1.13V or 2.35%).
What is the power capacity of 10A at 48V?
At unity power factor, 10A at 48V supports 0.48 kW with a standard 10A circuit breaker.
Related Lengths & Currents (48V)
10A · 5m (48V)10A · 10m (48V)10A · 15m (48V)10A · 20m (48V)10A · 25m (48V)10A · 30m (48V)10A · 35m (48V)10A · 40m (48V)10A · 45m (48V)10A · 50m (48V)10A · 60m (48V)10A · 70m (48V)16A · 250m (48V)20A · 250m (48V)25A · 250m (48V)32A · 250m (48V)40A · 250m (48V)50A · 250m (48V)63A · 250m (48V)80A · 250m (48V)100A · 250m (48V)125A · 250m (48V)160A · 250m (48V)200A · 250m (48V)