475 Amp Cable Size at 80 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 475 A over 80 m (262.5 ft).
Copper Cable (≤3% Drop)6× 400 mm²Drop: 0.68V (2.82%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 6.71V (27.95%)
Voltage at Load23.3 VLine Loss: 321.9 W
Max Power & Breaker11.4 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 80m
| 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 | 1084.27 V (4517.78%) | 0.0 V | 1788.53 V (7452.22%) | 515026.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 650.56 V (2710.67%) | 0.0 V | 1073.12 V (4471.33%) | 309016.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 406.6 V (1694.17%) | 0.0 V | 670.7 V (2794.58%) | 193135.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 271.07 V (1129.44%) | 0.0 V | 447.13 V (1863.06%) | 128756.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 162.64 V (677.67%) | 0.0 V | 268.28 V (1117.83%) | 77254.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 101.65 V (423.54%) | 0.0 V | 167.67 V (698.65%) | 48283.8 W | Drop High |
| 25 mm² | 101 A | 78 A | 65.06 V (271.07%) | 0.0 V | 107.31 V (447.13%) | 30901.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 46.47 V (193.62%) | 0.0 V | 76.65 V (319.38%) | 22072.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 32.53 V (135.53%) | 0.0 V | 53.66 V (223.57%) | 15450.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 23.23 V (96.81%) | 0.8 V | 38.33 V (159.69%) | 11036.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 17.12 V (71.33%) | 6.9 V | 28.24 V (117.67%) | 8132.0 W | Drop High |
| 120 mm² | 269 A | 210 A | 13.55 V (56.47%) | 10.4 V | 22.36 V (93.15%) | 6437.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 10.84 V (45.18%) | 13.2 V | 17.89 V (74.52%) | 5150.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 8.79 V (36.63%) | 15.2 V | 14.5 V (60.42%) | 4175.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 6.78 V (28.24%) | 17.2 V | 11.18 V (46.58%) | 3218.9 W | Drop High |
| 300 mm² | 477 A | 372 A | 5.42 V (22.59%) | 18.6 V | 8.94 V (37.26%) | 2575.1 W | Drop High |
| 400 mm² | 570 A | 445 A | 4.07 V (16.94%) | 19.9 V | 6.71 V (27.95%) | 1931.3 W | Drop High |
FAQ — 475 Amp Cable Size at 80 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 475A at 80 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6× 400 mm² copper cable for 475A over 80m at 24V (voltage drop: 0.68V or 2.82%).
What is the power capacity of 475A at 24V?
At unity power factor, 475A at 24V supports 11.4 kW with a standard 500A circuit breaker.
Related Lengths & Currents (24V)
475A · 5m (24V)475A · 10m (24V)475A · 15m (24V)475A · 20m (24V)475A · 25m (24V)475A · 30m (24V)475A · 35m (24V)475A · 40m (24V)475A · 45m (24V)475A · 50m (24V)475A · 60m (24V)475A · 70m (24V)10A · 80m (24V)16A · 80m (24V)20A · 80m (24V)25A · 80m (24V)32A · 80m (24V)40A · 80m (24V)50A · 80m (24V)63A · 80m (24V)80A · 80m (24V)100A · 80m (24V)125A · 80m (24V)160A · 80m (24V)200A · 80m (24V)