425 Amp Cable Size at 5 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 5 m (16.4 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 0.3V (1.26%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.38V (1.56%)
Voltage at Load23.7 VLine Loss: 128.8 W
Max Power & Breaker10.2 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 5m
| 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 | 60.63 V (252.64%) | 0.0 V | 100.02 V (416.74%) | 25769.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 36.38 V (151.58%) | 0.0 V | 60.01 V (250.04%) | 15461.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 22.74 V (94.74%) | 1.3 V | 37.51 V (156.28%) | 9663.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 15.16 V (63.16%) | 8.8 V | 25.0 V (104.18%) | 6442.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 9.09 V (37.9%) | 14.9 V | 15.0 V (62.51%) | 3865.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 5.68 V (23.68%) | 18.3 V | 9.38 V (39.07%) | 2415.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 3.64 V (15.16%) | 20.4 V | 6.0 V (25.0%) | 1546.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 2.6 V (10.83%) | 21.4 V | 4.29 V (17.86%) | 1104.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 1.82 V (7.58%) | 22.2 V | 3.0 V (12.5%) | 773.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.3 V (5.41%) | 22.7 V | 2.14 V (8.93%) | 552.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 0.96 V (3.99%) | 23.0 V | 1.58 V (6.58%) | 406.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 0.76 V (3.16%) | 23.2 V | 1.25 V (5.21%) | 322.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 0.61 V (2.53%) | 23.4 V | 1.0 V (4.17%) | 257.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 0.49 V (2.05%) | 23.5 V | 0.81 V (3.38%) | 208.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 0.38 V (1.58%) | 23.6 V | 0.63 V (2.6%) | 161.1 W | Drop High |
| 300 mm² | 477 A | 372 A | 0.3 V (1.26%) | 23.7 V | 0.5 V (2.08%) | 128.8 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.23 V (0.95%) | 23.8 V | 0.38 V (1.56%) | 96.6 W | ✓ OK (≤3%) |
FAQ — 425 Amp Cable Size at 5 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 425A at 5 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 425A over 5m at 24V (voltage drop: 0.3V or 1.26%).
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 · 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 · 5m (24V)16A · 5m (24V)20A · 5m (24V)25A · 5m (24V)32A · 5m (24V)40A · 5m (24V)50A · 5m (24V)63A · 5m (24V)80A · 5m (24V)100A · 5m (24V)125A · 5m (24V)160A · 5m (24V)200A · 5m (24V)