375 Amp Cable Size at 25 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 375 A over 25 m (82.0 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.5V (2.09%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.65V (6.89%)
Voltage at Load23.5 VLine Loss: 188.1 W
Max Power & Breaker9.0 kW400A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 375A at 25m
| 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 | 267.5 V (1114.58%) | 0.0 V | 441.25 V (1838.54%) | 100312.5 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 160.5 V (668.75%) | 0.0 V | 264.75 V (1103.12%) | 60187.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 100.31 V (417.97%) | 0.0 V | 165.47 V (689.45%) | 37617.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 66.88 V (278.65%) | 0.0 V | 110.31 V (459.64%) | 25078.1 W | Drop High |
| 10 mm² | 57 A | 44 A | 40.12 V (167.19%) | 0.0 V | 66.19 V (275.78%) | 15046.9 W | Drop High |
| 16 mm² | 76 A | 59 A | 25.08 V (104.49%) | 0.0 V | 41.37 V (172.36%) | 9404.3 W | Drop High |
| 25 mm² | 101 A | 78 A | 16.05 V (66.87%) | 8.0 V | 26.47 V (110.31%) | 6018.7 W | Drop High |
| 35 mm² | 125 A | 97 A | 11.46 V (47.77%) | 12.5 V | 18.91 V (78.79%) | 4299.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 8.02 V (33.44%) | 16.0 V | 13.24 V (55.16%) | 3009.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 5.73 V (23.88%) | 18.3 V | 9.46 V (39.4%) | 2149.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 4.22 V (17.6%) | 19.8 V | 6.97 V (29.03%) | 1583.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 3.34 V (13.93%) | 20.7 V | 5.52 V (22.98%) | 1253.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 2.67 V (11.15%) | 21.3 V | 4.41 V (18.39%) | 1003.1 W | Drop High |
| 185 mm² | 353 A | 275 A | 2.17 V (9.04%) | 21.8 V | 3.58 V (14.91%) | 813.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 1.67 V (6.97%) | 22.3 V | 2.76 V (11.49%) | 627.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 1.34 V (5.57%) | 22.7 V | 2.21 V (9.19%) | 501.6 W | Drop High |
| 400 mm² | 570 A | 445 A | 1.0 V (4.18%) | 23.0 V | 1.65 V (6.89%) | 376.2 W | ~ ≤5% |
FAQ — 375 Amp Cable Size at 25 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 375A at 25 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 375A over 25m at 24V (voltage drop: 0.5V or 2.09%).
What is the power capacity of 375A at 24V?
At unity power factor, 375A at 24V supports 9.0 kW with a standard 400A circuit breaker.
Related Lengths & Currents (24V)
375A · 5m (24V)375A · 10m (24V)375A · 15m (24V)375A · 20m (24V)375A · 30m (24V)375A · 35m (24V)375A · 40m (24V)375A · 45m (24V)375A · 50m (24V)375A · 60m (24V)375A · 70m (24V)10A · 25m (24V)16A · 25m (24V)20A · 25m (24V)25A · 25m (24V)32A · 25m (24V)40A · 25m (24V)50A · 25m (24V)63A · 25m (24V)80A · 25m (24V)100A · 25m (24V)125A · 25m (24V)160A · 25m (24V)200A · 25m (24V)