450 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 450 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)5× 400 mm²Drop: 1.16V (2.41%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 9.53V (19.86%)
Voltage at Load46.8 VLine Loss: 520.0 W
Max Power & Breaker21.6 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 450A 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 | 1540.8 V (3210.0%) | 0.0 V | 2541.6 V (5295.0%) | 693360.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 924.48 V (1926.0%) | 0.0 V | 1524.96 V (3177.0%) | 416016.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 577.8 V (1203.75%) | 0.0 V | 953.1 V (1985.62%) | 260010.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 385.2 V (802.5%) | 0.0 V | 635.4 V (1323.75%) | 173340.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 231.12 V (481.5%) | 0.0 V | 381.24 V (794.25%) | 104004.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 144.45 V (300.94%) | 0.0 V | 238.27 V (496.41%) | 65002.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 92.45 V (192.6%) | 0.0 V | 152.5 V (317.7%) | 41601.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 66.03 V (137.57%) | 0.0 V | 108.93 V (226.93%) | 29715.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 46.22 V (96.3%) | 1.8 V | 76.25 V (158.85%) | 20800.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 33.02 V (68.79%) | 15.0 V | 54.46 V (113.46%) | 14857.7 W | Drop High |
| 95 mm² | 232 A | 181 A | 24.33 V (50.68%) | 23.7 V | 40.13 V (83.61%) | 10947.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 19.26 V (40.12%) | 28.7 V | 31.77 V (66.19%) | 8667.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 15.41 V (32.1%) | 32.6 V | 25.42 V (52.95%) | 6933.6 W | Drop High |
| 185 mm² | 353 A | 275 A | 12.49 V (26.03%) | 35.5 V | 20.61 V (42.93%) | 5621.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 9.63 V (20.06%) | 38.4 V | 15.88 V (33.09%) | 4333.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 7.7 V (16.05%) | 40.3 V | 12.71 V (26.47%) | 3466.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 5.78 V (12.04%) | 42.2 V | 9.53 V (19.86%) | 2600.1 W | Drop High |
FAQ — 450 Amp Cable Size at 120 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 450A at 120 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 5× 400 mm² copper cable for 450A over 120m at 48V (voltage drop: 1.16V or 2.41%).
What is the power capacity of 450A at 48V?
At unity power factor, 450A at 48V supports 21.6 kW with a standard 450A circuit breaker.
Related Lengths & Currents (48V)
450A · 5m (48V)450A · 10m (48V)450A · 15m (48V)450A · 20m (48V)450A · 25m (48V)450A · 30m (48V)450A · 35m (48V)450A · 40m (48V)450A · 45m (48V)450A · 50m (48V)450A · 60m (48V)450A · 70m (48V)10A · 120m (48V)16A · 120m (48V)20A · 120m (48V)25A · 120m (48V)32A · 120m (48V)40A · 120m (48V)50A · 120m (48V)63A · 120m (48V)80A · 120m (48V)100A · 120m (48V)125A · 120m (48V)160A · 120m (48V)200A · 120m (48V)