475 Amp Cable Size at 120 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 120 m (393.7 ft).
Copper Cable (≤3% Drop)9× 400 mm²Drop: 0.68V (2.82%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 10.06V (41.92%)
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 120m
| 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 | 1626.4 V (6776.67%) | 0.0 V | 2682.8 V (11178.33%) | 772540.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 975.84 V (4066.0%) | 0.0 V | 1609.68 V (6707.0%) | 463524.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 609.9 V (2541.25%) | 0.0 V | 1006.05 V (4191.88%) | 289702.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 406.6 V (1694.17%) | 0.0 V | 670.7 V (2794.58%) | 193135.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 243.96 V (1016.5%) | 0.0 V | 402.42 V (1676.75%) | 115881.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 152.47 V (635.31%) | 0.0 V | 251.51 V (1047.97%) | 72425.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 97.58 V (406.6%) | 0.0 V | 160.97 V (670.7%) | 46352.4 W | Drop High |
| 35 mm² | 125 A | 97 A | 69.7 V (290.43%) | 0.0 V | 114.98 V (479.07%) | 33108.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 48.79 V (203.3%) | 0.0 V | 80.48 V (335.35%) | 23176.2 W | Drop High |
| 70 mm² | 192 A | 150 A | 34.85 V (145.21%) | 0.0 V | 57.49 V (239.54%) | 16554.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 25.68 V (107.0%) | 0.0 V | 42.36 V (176.5%) | 12198.0 W | Drop High |
| 120 mm² | 269 A | 210 A | 20.33 V (84.71%) | 3.7 V | 33.53 V (139.73%) | 9656.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 16.26 V (67.77%) | 7.7 V | 26.83 V (111.78%) | 7725.4 W | Drop High |
| 185 mm² | 353 A | 275 A | 13.19 V (54.95%) | 10.8 V | 21.75 V (90.64%) | 6263.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 10.16 V (42.35%) | 13.8 V | 16.77 V (69.86%) | 4828.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 8.13 V (33.88%) | 15.9 V | 13.41 V (55.89%) | 3862.7 W | Drop High |
| 400 mm² | 570 A | 445 A | 6.1 V (25.41%) | 17.9 V | 10.06 V (41.92%) | 2897.0 W | Drop High |
FAQ — 475 Amp Cable Size at 120 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 475A at 120 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 9× 400 mm² copper cable for 475A over 120m 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 · 120m (24V)16A · 120m (24V)20A · 120m (24V)25A · 120m (24V)32A · 120m (24V)40A · 120m (24V)50A · 120m (24V)63A · 120m (24V)80A · 120m (24V)100A · 120m (24V)125A · 120m (24V)160A · 120m (24V)200A · 120m (24V)