450 Amp Cable Size at 15 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 15 m (49.2 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 0.96V (2.01%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.19V (2.48%)
Voltage at Load47.0 VLine Loss: 433.4 W
Max Power & Breaker21.6 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 450A at 15m
| 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 | 192.6 V (401.25%) | 0.0 V | 317.7 V (661.88%) | 86670.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 115.56 V (240.75%) | 0.0 V | 190.62 V (397.12%) | 52002.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 72.23 V (150.47%) | 0.0 V | 119.14 V (248.2%) | 32501.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 48.15 V (100.31%) | 0.0 V | 79.42 V (165.47%) | 21667.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 28.89 V (60.19%) | 19.1 V | 47.65 V (99.28%) | 13000.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 18.06 V (37.62%) | 29.9 V | 29.78 V (62.05%) | 8125.3 W | Drop High |
| 25 mm² | 101 A | 78 A | 11.56 V (24.08%) | 36.4 V | 19.06 V (39.71%) | 5200.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 8.25 V (17.2%) | 39.7 V | 13.62 V (28.37%) | 3714.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 5.78 V (12.04%) | 42.2 V | 9.53 V (19.86%) | 2600.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 4.13 V (8.6%) | 43.9 V | 6.81 V (14.18%) | 1857.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 3.04 V (6.34%) | 45.0 V | 5.02 V (10.45%) | 1368.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 2.41 V (5.02%) | 45.6 V | 3.97 V (8.27%) | 1083.4 W | Drop High |
| 150 mm² | 309 A | 241 A | 1.93 V (4.01%) | 46.1 V | 3.18 V (6.62%) | 866.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 1.56 V (3.25%) | 46.4 V | 2.58 V (5.37%) | 702.7 W | Drop High |
| 240 mm² | 415 A | 324 A | 1.2 V (2.51%) | 46.8 V | 1.99 V (4.14%) | 541.7 W | Drop High |
| 300 mm² | 477 A | 372 A | 0.96 V (2.01%) | 47.0 V | 1.59 V (3.31%) | 433.4 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.72 V (1.5%) | 47.3 V | 1.19 V (2.48%) | 325.0 W | ✓ OK (≤3%) |
FAQ — 450 Amp Cable Size at 15 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 450A at 15 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 450A over 15m at 48V (voltage drop: 0.96V or 2.01%).
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 · 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 · 15m (48V)16A · 15m (48V)20A · 15m (48V)25A · 15m (48V)32A · 15m (48V)40A · 15m (48V)50A · 15m (48V)63A · 15m (48V)80A · 15m (48V)100A · 15m (48V)125A · 15m (48V)160A · 15m (48V)200A · 15m (48V)