475 Amp Cable Size at 25 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 25 m (82.0 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.64V (2.65%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 2.1V (8.73%)
Voltage at Load23.4 VLine Loss: 301.8 W
Max Power & Breaker11.4 kW500A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 25m
| 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 | 338.83 V (1411.81%) | 0.0 V | 558.92 V (2328.82%) | 160945.8 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 203.3 V (847.08%) | 0.0 V | 335.35 V (1397.29%) | 96567.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 127.06 V (529.43%) | 0.0 V | 209.59 V (873.31%) | 60354.7 W | Drop High |
| 6 mm² | 41 A | 32 A | 84.71 V (352.95%) | 0.0 V | 139.73 V (582.2%) | 40236.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 50.82 V (211.77%) | 0.0 V | 83.84 V (349.32%) | 24141.9 W | Drop High |
| 16 mm² | 76 A | 59 A | 31.77 V (132.36%) | 0.0 V | 52.4 V (218.33%) | 15088.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 20.33 V (84.71%) | 3.7 V | 33.53 V (139.73%) | 9656.7 W | Drop High |
| 35 mm² | 125 A | 97 A | 14.52 V (60.51%) | 9.5 V | 23.95 V (99.81%) | 6897.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 10.16 V (42.35%) | 13.8 V | 16.77 V (69.86%) | 4828.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 7.26 V (30.25%) | 16.7 V | 11.98 V (49.9%) | 3448.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 5.35 V (22.29%) | 18.6 V | 8.82 V (36.77%) | 2541.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 4.24 V (17.65%) | 19.8 V | 6.99 V (29.11%) | 2011.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 3.39 V (14.12%) | 20.6 V | 5.59 V (23.29%) | 1609.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 2.75 V (11.45%) | 21.3 V | 4.53 V (18.88%) | 1305.0 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.12 V (8.82%) | 21.9 V | 3.49 V (14.56%) | 1005.9 W | Drop High |
| 300 mm² | 477 A | 372 A | 1.69 V (7.06%) | 22.3 V | 2.79 V (11.64%) | 804.7 W | Drop High |
| 400 mm² | 570 A | 445 A | 1.27 V (5.29%) | 22.7 V | 2.1 V (8.73%) | 603.5 W | Drop High |
FAQ — 475 Amp Cable Size at 25 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 475A at 25 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 475A over 25m at 24V (voltage drop: 0.64V or 2.65%).
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 · 30m (24V)475A · 35m (24V)475A · 40m (24V)475A · 45m (24V)475A · 50m (24V)475A · 60m (24V)475A · 70m (24V)10A · 25m (24V)16A · 25m (24V)20A · 25m (24V)25A · 25m (24V)32A · 25m (24V)40A · 25m (24V)50A · 25m (24V)63A · 25m (24V)80A · 25m (24V)100A · 25m (24V)125A · 25m (24V)160A · 25m (24V)200A · 25m (24V)