425 Amp Cable Size at 50 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 50 m (164.0 ft).
Copper Cable (≤3% Drop)4× 400 mm²Drop: 0.57V (2.37%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.75V (15.63%)
Voltage at Load23.4 VLine Loss: 241.6 W
Max Power & Breaker10.2 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 50m
| 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 | 606.33 V (2526.39%) | 0.0 V | 1000.17 V (4167.36%) | 257691.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 363.8 V (1515.83%) | 0.0 V | 600.1 V (2500.42%) | 154615.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 227.37 V (947.4%) | 0.0 V | 375.06 V (1562.76%) | 96634.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 151.58 V (631.6%) | 0.0 V | 250.04 V (1041.84%) | 64422.9 W | Drop High |
| 10 mm² | 57 A | 44 A | 90.95 V (378.96%) | 0.0 V | 150.03 V (625.1%) | 38653.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 56.84 V (236.85%) | 0.0 V | 93.77 V (390.69%) | 24158.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 36.38 V (151.58%) | 0.0 V | 60.01 V (250.04%) | 15461.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 25.99 V (108.27%) | 0.0 V | 42.86 V (178.6%) | 11043.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 18.19 V (75.79%) | 5.8 V | 30.0 V (125.02%) | 7730.7 W | Drop High |
| 70 mm² | 192 A | 150 A | 12.99 V (54.14%) | 11.0 V | 21.43 V (89.3%) | 5522.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 9.57 V (39.89%) | 14.4 V | 15.79 V (65.8%) | 4068.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 7.58 V (31.58%) | 16.4 V | 12.5 V (52.09%) | 3221.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 6.06 V (25.26%) | 17.9 V | 10.0 V (41.67%) | 2576.9 W | Drop High |
| 185 mm² | 353 A | 275 A | 4.92 V (20.48%) | 19.1 V | 8.11 V (33.79%) | 2089.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 3.79 V (15.79%) | 20.2 V | 6.25 V (26.05%) | 1610.6 W | Drop High |
| 300 mm² | 477 A | 372 A | 3.03 V (12.63%) | 21.0 V | 5.0 V (20.84%) | 1288.5 W | Drop High |
| 400 mm² | 570 A | 445 A | 2.27 V (9.47%) | 21.7 V | 3.75 V (15.63%) | 966.3 W | Drop High |
FAQ — 425 Amp Cable Size at 50 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 425A at 50 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 4× 400 mm² copper cable for 425A over 50m at 24V (voltage drop: 0.57V or 2.37%).
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 · 60m (24V)425A · 70m (24V)10A · 50m (24V)16A · 50m (24V)20A · 50m (24V)25A · 50m (24V)32A · 50m (24V)40A · 50m (24V)50A · 50m (24V)63A · 50m (24V)80A · 50m (24V)100A · 50m (24V)125A · 50m (24V)160A · 50m (24V)200A · 50m (24V)