63 Amp Cable Size at 120 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 63 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)240 mm²Drop: 1.35V (2.81%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.33V (2.78%)
Voltage at Load46.7 VLine Loss: 84.9 W
Max Power & Breaker3.02 kW63A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 63A at 120m
| 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 | 215.71 V (449.4%) | 0.0 V | 355.82 V (741.3%) | 13589.9 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 129.43 V (269.64%) | 0.0 V | 213.49 V (444.78%) | 8153.9 W | Drop High |
| 4 mm² | 32 A | 25 A | 80.89 V (168.52%) | 0.0 V | 133.43 V (277.99%) | 5096.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 53.93 V (112.35%) | 0.0 V | 88.96 V (185.32%) | 3397.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 32.36 V (67.41%) | 15.6 V | 53.37 V (111.19%) | 2038.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 20.22 V (42.13%) | 27.8 V | 33.36 V (69.5%) | 1274.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 12.94 V (26.96%) | 35.1 V | 21.35 V (44.48%) | 815.4 W | Drop High |
| 35 mm² | 125 A | 97 A | 9.24 V (19.26%) | 38.8 V | 15.25 V (31.77%) | 582.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 6.47 V (13.48%) | 41.5 V | 10.67 V (22.24%) | 407.7 W | Drop High |
| 70 mm² | 192 A | 150 A | 4.62 V (9.63%) | 43.4 V | 7.62 V (15.88%) | 291.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 3.41 V (7.1%) | 44.6 V | 5.62 V (11.7%) | 214.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 2.7 V (5.62%) | 45.3 V | 4.45 V (9.27%) | 169.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 2.16 V (4.49%) | 45.8 V | 3.56 V (7.41%) | 135.9 W | ~ ≤5% |
| 185 mm² | 353 A | 275 A | 1.75 V (3.64%) | 46.3 V | 2.89 V (6.01%) | 110.2 W | ~ ≤5% |
| 240 mm² | 415 A | 324 A | 1.35 V (2.81%) | 46.7 V | 2.22 V (4.63%) | 84.9 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.08 V (2.25%) | 46.9 V | 1.78 V (3.71%) | 67.9 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.81 V (1.69%) | 47.2 V | 1.33 V (2.78%) | 51.0 W | ✓ OK (≤3%) |
FAQ — 63 Amp Cable Size at 120 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 63A at 120 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 63A over 120m at 48V (voltage drop: 1.35V or 2.81%).
What is the power capacity of 63A at 48V?
At unity power factor, 63A at 48V supports 3.02 kW with a standard 63A circuit breaker.
Related Lengths & Currents (48V)
63A · 5m (48V)63A · 10m (48V)63A · 15m (48V)63A · 20m (48V)63A · 25m (48V)63A · 30m (48V)63A · 35m (48V)63A · 40m (48V)63A · 45m (48V)63A · 50m (48V)63A · 60m (48V)63A · 70m (48V)10A · 120m (48V)16A · 120m (48V)20A · 120m (48V)25A · 120m (48V)32A · 120m (48V)40A · 120m (48V)50A · 120m (48V)80A · 120m (48V)100A · 120m (48V)125A · 120m (48V)160A · 120m (48V)200A · 120m (48V)