325 Amp Cable Size at 150 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 325 A over 150 m (492.1 ft).
Copper Cable (≤3% Drop)8× 400 mm²Drop: 0.65V (2.72%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 8.6V (35.85%)
Voltage at Load23.4 VLine Loss: 211.9 W
Max Power & Breaker7.8 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A at 150m
| 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 | 1391.0 V (5795.83%) | 0.0 V | 2294.5 V (9560.42%) | 452075.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 834.6 V (3477.5%) | 0.0 V | 1376.7 V (5736.25%) | 271245.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 521.62 V (2173.44%) | 0.0 V | 860.44 V (3585.16%) | 169528.1 W | Drop High |
| 6 mm² | 41 A | 32 A | 347.75 V (1448.96%) | 0.0 V | 573.62 V (2390.1%) | 113018.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 208.65 V (869.38%) | 0.0 V | 344.17 V (1434.06%) | 67811.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 130.41 V (543.36%) | 0.0 V | 215.11 V (896.29%) | 42382.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 83.46 V (347.75%) | 0.0 V | 137.67 V (573.62%) | 27124.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 59.61 V (248.39%) | 0.0 V | 98.34 V (409.73%) | 19374.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 41.73 V (173.87%) | 0.0 V | 68.83 V (286.81%) | 13562.2 W | Drop High |
| 70 mm² | 192 A | 150 A | 29.81 V (124.2%) | 0.0 V | 49.17 V (204.87%) | 9687.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 21.96 V (91.51%) | 2.0 V | 36.23 V (150.95%) | 7138.0 W | Drop High |
| 120 mm² | 269 A | 210 A | 17.39 V (72.45%) | 6.6 V | 28.68 V (119.51%) | 5650.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 13.91 V (57.96%) | 10.1 V | 22.95 V (95.6%) | 4520.8 W | Drop High |
| 185 mm² | 353 A | 275 A | 11.28 V (46.99%) | 12.7 V | 18.6 V (77.52%) | 3665.5 W | Drop High |
| 240 mm² | 415 A | 324 A | 8.69 V (36.22%) | 15.3 V | 14.34 V (59.75%) | 2825.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 6.96 V (28.98%) | 17.0 V | 11.47 V (47.8%) | 2260.4 W | Drop High |
| 400 mm² | 570 A | 445 A | 5.22 V (21.73%) | 18.8 V | 8.6 V (35.85%) | 1695.3 W | Drop High |
FAQ — 325 Amp Cable Size at 150 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 325A at 150 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 8× 400 mm² copper cable for 325A over 150m at 24V (voltage drop: 0.65V or 2.72%).
What is the power capacity of 325A at 24V?
At unity power factor, 325A at 24V supports 7.8 kW with a standard 350A circuit breaker.
Related Lengths & Currents (24V)
325A · 5m (24V)325A · 10m (24V)325A · 15m (24V)325A · 20m (24V)325A · 25m (24V)325A · 30m (24V)325A · 35m (24V)325A · 40m (24V)325A · 45m (24V)325A · 50m (24V)325A · 60m (24V)325A · 70m (24V)10A · 150m (24V)16A · 150m (24V)20A · 150m (24V)25A · 150m (24V)32A · 150m (24V)40A · 150m (24V)50A · 150m (24V)63A · 150m (24V)80A · 150m (24V)100A · 150m (24V)125A · 150m (24V)160A · 150m (24V)200A · 150m (24V)