325 Amp Cable Size at 10 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 10 m (32.8 ft).
Copper Cable (≤3% Drop)240 mm²Drop: 0.58V (2.41%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.57V (2.39%)
Voltage at Load23.4 VLine Loss: 188.4 W
Max Power & Breaker7.8 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A at 10m
| 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 | 92.73 V (386.39%) | 0.0 V | 152.97 V (637.36%) | 30138.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 55.64 V (231.83%) | 0.0 V | 91.78 V (382.42%) | 18083.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 34.77 V (144.9%) | 0.0 V | 57.36 V (239.01%) | 11301.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 23.18 V (96.6%) | 0.8 V | 38.24 V (159.34%) | 7534.6 W | Drop High |
| 10 mm² | 57 A | 44 A | 13.91 V (57.96%) | 10.1 V | 22.95 V (95.6%) | 4520.8 W | Drop High |
| 16 mm² | 76 A | 59 A | 8.69 V (36.22%) | 15.3 V | 14.34 V (59.75%) | 2825.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 5.56 V (23.18%) | 18.4 V | 9.18 V (38.24%) | 1808.3 W | Drop High |
| 35 mm² | 125 A | 97 A | 3.97 V (16.56%) | 20.0 V | 6.56 V (27.32%) | 1291.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 2.78 V (11.59%) | 21.2 V | 4.59 V (19.12%) | 904.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.99 V (8.28%) | 22.0 V | 3.28 V (13.66%) | 645.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 1.46 V (6.1%) | 22.5 V | 2.42 V (10.06%) | 475.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 1.16 V (4.83%) | 22.8 V | 1.91 V (7.97%) | 376.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 0.93 V (3.86%) | 23.1 V | 1.53 V (6.37%) | 301.4 W | Drop High |
| 185 mm² | 353 A | 275 A | 0.75 V (3.13%) | 23.2 V | 1.24 V (5.17%) | 244.4 W | ~ ≤5% |
| 240 mm² | 415 A | 324 A | 0.58 V (2.41%) | 23.4 V | 0.96 V (3.98%) | 188.4 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.46 V (1.93%) | 23.5 V | 0.76 V (3.19%) | 150.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.35 V (1.45%) | 23.7 V | 0.57 V (2.39%) | 113.0 W | ✓ OK (≤3%) |
FAQ — 325 Amp Cable Size at 10 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 325A at 10 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 240 mm² copper cable for 325A over 10m at 24V (voltage drop: 0.58V or 2.41%).
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 · 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 · 10m (24V)16A · 10m (24V)20A · 10m (24V)25A · 10m (24V)32A · 10m (24V)40A · 10m (24V)50A · 10m (24V)63A · 10m (24V)80A · 10m (24V)100A · 10m (24V)125A · 10m (24V)160A · 10m (24V)200A · 10m (24V)