425 Amp Cable Size at 30 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 30 m (98.4 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.68V (2.84%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 2.25V (9.38%)
Voltage at Load23.3 VLine Loss: 289.9 W
Max Power & Breaker10.2 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 30m
| 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 | 363.8 V (1515.83%) | 0.0 V | 600.1 V (2500.42%) | 154615.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 218.28 V (909.5%) | 0.0 V | 360.06 V (1500.25%) | 92769.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 136.43 V (568.44%) | 0.0 V | 225.04 V (937.66%) | 57980.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 90.95 V (378.96%) | 0.0 V | 150.03 V (625.1%) | 38653.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 54.57 V (227.38%) | 0.0 V | 90.02 V (375.06%) | 23192.3 W | Drop High |
| 16 mm² | 76 A | 59 A | 34.11 V (142.11%) | 0.0 V | 56.26 V (234.41%) | 14495.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 21.83 V (90.95%) | 2.2 V | 36.01 V (150.02%) | 9276.9 W | Drop High |
| 35 mm² | 125 A | 97 A | 15.59 V (64.96%) | 8.4 V | 25.72 V (107.16%) | 6626.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 10.91 V (45.48%) | 13.1 V | 18.0 V (75.01%) | 4638.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 7.8 V (32.48%) | 16.2 V | 12.86 V (53.58%) | 3313.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 5.74 V (23.93%) | 18.3 V | 9.48 V (39.48%) | 2441.3 W | Drop High |
| 120 mm² | 269 A | 210 A | 4.55 V (18.95%) | 19.5 V | 7.5 V (31.26%) | 1932.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 3.64 V (15.16%) | 20.4 V | 6.0 V (25.0%) | 1546.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 2.95 V (12.29%) | 21.1 V | 4.87 V (20.27%) | 1253.6 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.27 V (9.47%) | 21.7 V | 3.75 V (15.63%) | 966.3 W | Drop High |
| 300 mm² | 477 A | 372 A | 1.82 V (7.58%) | 22.2 V | 3.0 V (12.5%) | 773.1 W | Drop High |
| 400 mm² | 570 A | 445 A | 1.36 V (5.68%) | 22.6 V | 2.25 V (9.38%) | 579.8 W | Drop High |
FAQ — 425 Amp Cable Size at 30 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 425A at 30 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 425A over 30m at 24V (voltage drop: 0.68V or 2.84%).
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 · 35m (24V)425A · 40m (24V)425A · 45m (24V)425A · 50m (24V)425A · 60m (24V)425A · 70m (24V)10A · 30m (24V)16A · 30m (24V)20A · 30m (24V)25A · 30m (24V)32A · 30m (24V)40A · 30m (24V)50A · 30m (24V)63A · 30m (24V)80A · 30m (24V)100A · 30m (24V)125A · 30m (24V)160A · 30m (24V)200A · 30m (24V)