800 Amp Cable Size at 500 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 800 A over 500 m (1640.4 ft).
Copper Cable (≤3% Drop)60× 400 mm²Drop: 0.71V (2.97%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 70.6V (294.17%)
Voltage at Load23.3 VLine Loss: 570.7 W
Max Power & Breaker19.2 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 800A 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 | 11413.33 V (47555.56%) | 0.0 V | 18826.67 V (78444.44%) | 9130666.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 6848.0 V (28533.33%) | 0.0 V | 11296.0 V (47066.67%) | 5478400.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 4280.0 V (17833.33%) | 0.0 V | 7060.0 V (29416.67%) | 3424000.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 2853.33 V (11888.89%) | 0.0 V | 4706.67 V (19611.11%) | 2282666.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 1712.0 V (7133.33%) | 0.0 V | 2824.0 V (11766.67%) | 1369600.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 1070.0 V (4458.33%) | 0.0 V | 1765.0 V (7354.17%) | 856000.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 684.8 V (2853.33%) | 0.0 V | 1129.6 V (4706.67%) | 547840.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 489.14 V (2038.1%) | 0.0 V | 806.86 V (3361.9%) | 391314.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 342.4 V (1426.67%) | 0.0 V | 564.8 V (2353.33%) | 273920.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 244.57 V (1019.05%) | 0.0 V | 403.43 V (1680.95%) | 195657.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 180.21 V (750.88%) | 0.0 V | 297.26 V (1238.6%) | 144168.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 142.67 V (594.44%) | 0.0 V | 235.33 V (980.56%) | 114133.3 W | Drop High |
| 150 mm² | 309 A | 241 A | 114.13 V (475.56%) | 0.0 V | 188.27 V (784.44%) | 91306.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 92.54 V (385.59%) | 0.0 V | 152.65 V (636.04%) | 74032.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 71.33 V (297.22%) | 0.0 V | 117.67 V (490.28%) | 57066.7 W | Drop High |
| 300 mm² | 477 A | 372 A | 57.07 V (237.78%) | 0.0 V | 94.13 V (392.22%) | 45653.3 W | Drop High |
| 400 mm² | 570 A | 445 A | 42.8 V (178.33%) | 0.0 V | 70.6 V (294.17%) | 34240.0 W | Drop High |
FAQ — 800 Amp Cable Size at 500 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 800A at 500 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 60× 400 mm² copper cable for 800A over 500m at 24V (voltage drop: 0.71V or 2.97%).
What is the power capacity of 800A at 24V?
At unity power factor, 800A at 24V supports 19.2 kW with a standard 800A circuit breaker.
Related Lengths & Currents (24V)
800A · 5m (24V)800A · 10m (24V)800A · 15m (24V)800A · 20m (24V)800A · 25m (24V)800A · 30m (24V)800A · 35m (24V)800A · 40m (24V)800A · 45m (24V)800A · 50m (24V)800A · 60m (24V)800A · 70m (24V)10A · 500m (24V)16A · 500m (24V)20A · 500m (24V)25A · 500m (24V)32A · 500m (24V)40A · 500m (24V)50A · 500m (24V)63A · 500m (24V)80A · 500m (24V)100A · 500m (24V)125A · 500m (24V)160A · 500m (24V)200A · 500m (24V)