425 Amp Cable Size at 175 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 425 A over 175 m (574.1 ft).
Copper Cable (≤3% Drop)12× 400 mm²Drop: 0.66V (2.76%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 13.13V (54.7%)
Voltage at Load23.3 VLine Loss: 281.8 W
Max Power & Breaker10.2 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 175m
| 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 | 2122.17 V (8842.36%) | 0.0 V | 3500.58 V (14585.76%) | 901920.8 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1273.3 V (5305.42%) | 0.0 V | 2100.35 V (8751.46%) | 541152.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 795.81 V (3315.89%) | 0.0 V | 1312.72 V (5469.66%) | 338220.3 W | Drop High |
| 6 mm² | 41 A | 32 A | 530.54 V (2210.59%) | 0.0 V | 875.15 V (3646.44%) | 225480.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 318.32 V (1326.35%) | 0.0 V | 525.09 V (2187.86%) | 135288.1 W | Drop High |
| 16 mm² | 76 A | 59 A | 198.95 V (828.97%) | 0.0 V | 328.18 V (1367.42%) | 84555.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 127.33 V (530.54%) | 0.0 V | 210.03 V (875.15%) | 54115.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 90.95 V (378.96%) | 0.0 V | 150.03 V (625.1%) | 38653.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 63.66 V (265.27%) | 0.0 V | 105.02 V (437.57%) | 27057.6 W | Drop High |
| 70 mm² | 192 A | 150 A | 45.47 V (189.48%) | 0.0 V | 75.01 V (312.55%) | 19326.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 33.51 V (139.62%) | 0.0 V | 55.27 V (230.3%) | 14240.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 26.53 V (110.53%) | 0.0 V | 43.76 V (182.32%) | 11274.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 21.22 V (88.42%) | 2.8 V | 35.01 V (145.86%) | 9019.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 17.21 V (71.69%) | 6.8 V | 28.38 V (118.26%) | 7312.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 13.26 V (55.26%) | 10.7 V | 21.88 V (91.16%) | 5637.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 10.61 V (44.21%) | 13.4 V | 17.5 V (72.93%) | 4509.6 W | Drop High |
| 400 mm² | 570 A | 445 A | 7.96 V (33.16%) | 16.0 V | 13.13 V (54.7%) | 3382.2 W | Drop High |
FAQ — 425 Amp Cable Size at 175 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 425A at 175 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 12× 400 mm² copper cable for 425A over 175m at 24V (voltage drop: 0.66V or 2.76%).
What is the power capacity of 425A at 24V?
At unity power factor, 425A at 24V supports 10.2 kW with a standard 450A circuit breaker.
Related Lengths & Currents (24V)
425A · 5m (24V)425A · 10m (24V)425A · 15m (24V)425A · 20m (24V)425A · 25m (24V)425A · 30m (24V)425A · 35m (24V)425A · 40m (24V)425A · 45m (24V)425A · 50m (24V)425A · 60m (24V)425A · 70m (24V)10A · 175m (24V)16A · 175m (24V)20A · 175m (24V)25A · 175m (24V)32A · 175m (24V)40A · 175m (24V)50A · 175m (24V)63A · 175m (24V)80A · 175m (24V)100A · 175m (24V)125A · 175m (24V)160A · 175m (24V)200A · 175m (24V)