350 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 350 A over 15 m (49.2 ft).
Copper Cable (≤3% Drop)185 mm²Drop: 1.21V (2.53%)
Aluminum Cable (≤3% Drop)300 mm²Drop: 1.24V (2.57%)
Voltage at Load46.8 VLine Loss: 425.1 W
Max Power & Breaker16.8 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 350A 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 | 149.8 V (312.08%) | 0.0 V | 247.1 V (514.79%) | 52430.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 89.88 V (187.25%) | 0.0 V | 148.26 V (308.87%) | 31458.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 56.18 V (117.03%) | 0.0 V | 92.66 V (193.05%) | 19661.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 37.45 V (78.02%) | 10.6 V | 61.77 V (128.7%) | 13107.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 22.47 V (46.81%) | 25.5 V | 37.06 V (77.22%) | 7864.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 14.04 V (29.26%) | 34.0 V | 23.17 V (48.26%) | 4915.3 W | Drop High |
| 25 mm² | 101 A | 78 A | 8.99 V (18.73%) | 39.0 V | 14.83 V (30.89%) | 3145.8 W | Drop High |
| 35 mm² | 125 A | 97 A | 6.42 V (13.38%) | 41.6 V | 10.59 V (22.06%) | 2247.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 4.49 V (9.36%) | 43.5 V | 7.41 V (15.44%) | 1572.9 W | Drop High |
| 70 mm² | 192 A | 150 A | 3.21 V (6.69%) | 44.8 V | 5.29 V (11.03%) | 1123.5 W | Drop High |
| 95 mm² | 232 A | 181 A | 2.37 V (4.93%) | 45.6 V | 3.9 V (8.13%) | 827.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 1.87 V (3.9%) | 46.1 V | 3.09 V (6.43%) | 655.4 W | Drop High |
| 150 mm² | 309 A | 241 A | 1.5 V (3.12%) | 46.5 V | 2.47 V (5.15%) | 524.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 1.21 V (2.53%) | 46.8 V | 2.0 V (4.17%) | 425.1 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.94 V (1.95%) | 47.1 V | 1.54 V (3.22%) | 327.7 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.75 V (1.56%) | 47.3 V | 1.24 V (2.57%) | 262.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.56 V (1.17%) | 47.4 V | 0.93 V (1.93%) | 196.6 W | ✓ OK (≤3%) |
FAQ — 350 Amp Cable Size at 15 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 350A at 15 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 185 mm² copper cable for 350A over 15m at 48V (voltage drop: 1.21V or 2.53%).
What is the power capacity of 350A at 48V?
At unity power factor, 350A at 48V supports 16.8 kW with a standard 350A circuit breaker.
Related Lengths & Currents (48V)
350A · 5m (48V)350A · 10m (48V)350A · 20m (48V)350A · 25m (48V)350A · 30m (48V)350A · 35m (48V)350A · 40m (48V)350A · 45m (48V)350A · 50m (48V)350A · 60m (48V)350A · 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)