35 Amp Cable Size at 300 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 35 A over 300 m (984.3 ft).
Copper Cable (≤3% Drop)400 mm²Drop: 1.12V (2.34%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.85V (3.86%)
Voltage at Load46.9 VLine Loss: 39.3 W
Max Power & Breaker1.68 kW35A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 35A at 300m
| 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 | 299.6 V (624.17%) | 0.0 V | 494.2 V (1029.58%) | 10486.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 179.76 V (374.5%) | 0.0 V | 296.52 V (617.75%) | 6291.6 W | Drop High |
| 4 mm² | 32 A | 25 A | 112.35 V (234.06%) | 0.0 V | 185.32 V (386.09%) | 3932.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 74.9 V (156.04%) | 0.0 V | 123.55 V (257.4%) | 2621.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 44.94 V (93.62%) | 3.1 V | 74.13 V (154.44%) | 1572.9 W | Drop High |
| 16 mm² | 76 A | 59 A | 28.09 V (58.52%) | 19.9 V | 46.33 V (96.52%) | 983.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 17.98 V (37.45%) | 30.0 V | 29.65 V (61.77%) | 629.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 12.84 V (26.75%) | 35.2 V | 21.18 V (44.12%) | 449.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 8.99 V (18.73%) | 39.0 V | 14.83 V (30.89%) | 314.6 W | Drop High |
| 70 mm² | 192 A | 150 A | 6.42 V (13.37%) | 41.6 V | 10.59 V (22.06%) | 224.7 W | Drop High |
| 95 mm² | 232 A | 181 A | 4.73 V (9.86%) | 43.3 V | 7.8 V (16.26%) | 165.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 3.75 V (7.8%) | 44.3 V | 6.18 V (12.87%) | 131.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 3.0 V (6.24%) | 45.0 V | 4.94 V (10.3%) | 104.9 W | Drop High |
| 185 mm² | 353 A | 275 A | 2.43 V (5.06%) | 45.6 V | 4.01 V (8.35%) | 85.0 W | Drop High |
| 240 mm² | 415 A | 324 A | 1.87 V (3.9%) | 46.1 V | 3.09 V (6.43%) | 65.5 W | ~ ≤5% |
| 300 mm² | 477 A | 372 A | 1.5 V (3.12%) | 46.5 V | 2.47 V (5.15%) | 52.4 W | ~ ≤5% |
| 400 mm² | 570 A | 445 A | 1.12 V (2.34%) | 46.9 V | 1.85 V (3.86%) | 39.3 W | ✓ OK (≤3%) |
FAQ — 35 Amp Cable Size at 300 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 35A at 300 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 35A over 300m at 48V (voltage drop: 1.12V or 2.34%).
What is the power capacity of 35A at 48V?
At unity power factor, 35A at 48V supports 1.68 kW with a standard 35A circuit breaker.
Related Lengths & Currents (48V)
35A · 5m (48V)35A · 10m (48V)35A · 15m (48V)35A · 20m (48V)35A · 25m (48V)35A · 30m (48V)35A · 35m (48V)35A · 40m (48V)35A · 45m (48V)35A · 50m (48V)35A · 60m (48V)35A · 70m (48V)10A · 300m (48V)16A · 300m (48V)20A · 300m (48V)25A · 300m (48V)32A · 300m (48V)40A · 300m (48V)50A · 300m (48V)63A · 300m (48V)80A · 300m (48V)100A · 300m (48V)125A · 300m (48V)160A · 300m (48V)200A · 300m (48V)