45 Amp Cable Size at 35 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 45 A over 35 m (114.8 ft).
Copper Cable (≤3% Drop)50 mm²Drop: 1.35V (2.81%)
Aluminum Cable (≤3% Drop)95 mm²Drop: 1.17V (2.44%)
Voltage at Load46.7 VLine Loss: 60.7 W
Max Power & Breaker2.16 kW45A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 45A at 35m
| 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 | 44.94 V (93.63%) | 3.1 V | 74.13 V (154.44%) | 2022.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 26.96 V (56.17%) | 21.0 V | 44.48 V (92.66%) | 1213.4 W | Drop High |
| 4 mm² | 32 A | 25 A | 16.85 V (35.11%) | 31.1 V | 27.8 V (57.91%) | 758.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 11.24 V (23.41%) | 36.8 V | 18.53 V (38.61%) | 505.6 W | Drop High |
| 10 mm² | 57 A | 44 A | 6.74 V (14.04%) | 41.3 V | 11.12 V (23.17%) | 303.3 W | Drop High |
| 16 mm² | 76 A | 59 A | 4.21 V (8.78%) | 43.8 V | 6.95 V (14.48%) | 189.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 2.7 V (5.62%) | 45.3 V | 4.45 V (9.27%) | 121.3 W | Drop High |
| 35 mm² | 125 A | 97 A | 1.93 V (4.01%) | 46.1 V | 3.18 V (6.62%) | 86.7 W | ~ ≤5% |
| 50 mm² | 151 A | 118 A | 1.35 V (2.81%) | 46.7 V | 2.22 V (4.63%) | 60.7 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.96 V (2.01%) | 47.0 V | 1.59 V (3.31%) | 43.3 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.71 V (1.48%) | 47.3 V | 1.17 V (2.44%) | 31.9 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.56 V (1.17%) | 47.4 V | 0.93 V (1.93%) | 25.3 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.45 V (0.94%) | 47.6 V | 0.74 V (1.54%) | 20.2 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.36 V (0.76%) | 47.6 V | 0.6 V (1.25%) | 16.4 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.28 V (0.59%) | 47.7 V | 0.46 V (0.97%) | 12.6 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.22 V (0.47%) | 47.8 V | 0.37 V (0.77%) | 10.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.17 V (0.35%) | 47.8 V | 0.28 V (0.58%) | 7.6 W | ✓ OK (≤3%) |
FAQ — 45 Amp Cable Size at 35 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 45A at 35 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 50 mm² copper cable for 45A over 35m at 48V (voltage drop: 1.35V or 2.81%).
What is the power capacity of 45A at 48V?
At unity power factor, 45A at 48V supports 2.16 kW with a standard 45A circuit breaker.
Related Lengths & Currents (48V)
45A · 5m (48V)45A · 10m (48V)45A · 15m (48V)45A · 20m (48V)45A · 25m (48V)45A · 30m (48V)45A · 40m (48V)45A · 45m (48V)45A · 50m (48V)45A · 60m (48V)45A · 70m (48V)10A · 35m (48V)16A · 35m (48V)20A · 35m (48V)25A · 35m (48V)32A · 35m (48V)40A · 35m (48V)50A · 35m (48V)63A · 35m (48V)80A · 35m (48V)100A · 35m (48V)125A · 35m (48V)160A · 35m (48V)200A · 35m (48V)