30 Amp Cable Size at 500 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 30 A over 500 m (1640.4 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.8V (1.67%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 2.65V (5.52%)
Voltage at Load47.2 VLine Loss: 24.1 W
Max Power & Breaker1.44 kW30A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 30A at 500m
| 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 | 428.0 V (891.67%) | 0.0 V | 706.0 V (1470.83%) | 12840.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 256.8 V (535.0%) | 0.0 V | 423.6 V (882.5%) | 7704.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 160.5 V (334.38%) | 0.0 V | 264.75 V (551.56%) | 4815.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 107.0 V (222.92%) | 0.0 V | 176.5 V (367.71%) | 3210.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 64.2 V (133.75%) | 0.0 V | 105.9 V (220.62%) | 1926.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 40.12 V (83.59%) | 7.9 V | 66.19 V (137.89%) | 1203.8 W | Drop High |
| 25 mm² | 101 A | 78 A | 25.68 V (53.5%) | 22.3 V | 42.36 V (88.25%) | 770.4 W | Drop High |
| 35 mm² | 125 A | 97 A | 18.34 V (38.21%) | 29.7 V | 30.26 V (63.04%) | 550.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 12.84 V (26.75%) | 35.2 V | 21.18 V (44.12%) | 385.2 W | Drop High |
| 70 mm² | 192 A | 150 A | 9.17 V (19.11%) | 38.8 V | 15.13 V (31.52%) | 275.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 6.76 V (14.08%) | 41.2 V | 11.15 V (23.22%) | 202.7 W | Drop High |
| 120 mm² | 269 A | 210 A | 5.35 V (11.15%) | 42.6 V | 8.82 V (18.39%) | 160.5 W | Drop High |
| 150 mm² | 309 A | 241 A | 4.28 V (8.92%) | 43.7 V | 7.06 V (14.71%) | 128.4 W | Drop High |
| 185 mm² | 353 A | 275 A | 3.47 V (7.23%) | 44.5 V | 5.72 V (11.93%) | 104.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.67 V (5.57%) | 45.3 V | 4.41 V (9.19%) | 80.2 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.14 V (4.46%) | 45.9 V | 3.53 V (7.35%) | 64.2 W | ~ ≤5% |
| 400 mm² | 570 A | 445 A | 1.6 V (3.34%) | 46.4 V | 2.65 V (5.52%) | 48.1 W | ~ ≤5% |
FAQ — 30 Amp Cable Size at 500 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 30A at 500 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 30A over 500m at 48V (voltage drop: 0.8V or 1.67%).
What is the power capacity of 30A at 48V?
At unity power factor, 30A at 48V supports 1.44 kW with a standard 30A circuit breaker.
Related Lengths & Currents (48V)
30A · 5m (48V)30A · 10m (48V)30A · 15m (48V)30A · 20m (48V)30A · 25m (48V)30A · 30m (48V)30A · 35m (48V)30A · 40m (48V)30A · 45m (48V)30A · 50m (48V)30A · 60m (48V)30A · 70m (48V)10A · 500m (48V)16A · 500m (48V)20A · 500m (48V)25A · 500m (48V)32A · 500m (48V)40A · 500m (48V)50A · 500m (48V)63A · 500m (48V)80A · 500m (48V)100A · 500m (48V)125A · 500m (48V)160A · 500m (48V)200A · 500m (48V)