325 Amp Cable Size at 45 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 325 A over 45 m (147.6 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.78V (1.63%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 2.58V (5.38%)
Voltage at Load47.2 VLine Loss: 254.3 W
Max Power & Breaker15.6 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A at 45m
| 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 | 417.3 V (869.38%) | 0.0 V | 688.35 V (1434.06%) | 135622.5 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 250.38 V (521.62%) | 0.0 V | 413.01 V (860.44%) | 81373.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 156.49 V (326.02%) | 0.0 V | 258.13 V (537.77%) | 50858.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 104.33 V (217.34%) | 0.0 V | 172.09 V (358.52%) | 33905.6 W | Drop High |
| 10 mm² | 57 A | 44 A | 62.59 V (130.41%) | 0.0 V | 103.25 V (215.11%) | 20343.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 39.12 V (81.5%) | 8.9 V | 64.53 V (134.44%) | 12714.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 25.04 V (52.16%) | 23.0 V | 41.3 V (86.04%) | 8137.3 W | Drop High |
| 35 mm² | 125 A | 97 A | 17.88 V (37.26%) | 30.1 V | 29.5 V (61.46%) | 5812.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 12.52 V (26.08%) | 35.5 V | 20.65 V (43.02%) | 4068.7 W | Drop High |
| 70 mm² | 192 A | 150 A | 8.94 V (18.63%) | 39.1 V | 14.75 V (30.73%) | 2906.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 6.59 V (13.73%) | 41.4 V | 10.87 V (22.64%) | 2141.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 5.22 V (10.87%) | 42.8 V | 8.6 V (17.93%) | 1695.3 W | Drop High |
| 150 mm² | 309 A | 241 A | 4.17 V (8.69%) | 43.8 V | 6.88 V (14.34%) | 1356.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 3.38 V (7.05%) | 44.6 V | 5.58 V (11.63%) | 1099.6 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.61 V (5.43%) | 45.4 V | 4.3 V (8.96%) | 847.6 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.09 V (4.35%) | 45.9 V | 3.44 V (7.17%) | 678.1 W | ~ ≤5% |
| 400 mm² | 570 A | 445 A | 1.56 V (3.26%) | 46.4 V | 2.58 V (5.38%) | 508.6 W | ~ ≤5% |
FAQ — 325 Amp Cable Size at 45 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 325A at 45 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 325A over 45m at 48V (voltage drop: 0.78V or 1.63%).
What is the power capacity of 325A at 48V?
At unity power factor, 325A at 48V supports 15.6 kW with a standard 350A circuit breaker.
Related Lengths & Currents (48V)
325A · 5m (48V)325A · 10m (48V)325A · 15m (48V)325A · 20m (48V)325A · 25m (48V)325A · 30m (48V)325A · 35m (48V)325A · 40m (48V)325A · 50m (48V)325A · 60m (48V)325A · 70m (48V)10A · 45m (48V)16A · 45m (48V)20A · 45m (48V)25A · 45m (48V)32A · 45m (48V)40A · 45m (48V)50A · 45m (48V)63A · 45m (48V)80A · 45m (48V)100A · 45m (48V)125A · 45m (48V)160A · 45m (48V)200A · 45m (48V)