150 Amp Cable Size at 250 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 150 A over 250 m (820.2 ft).
Copper Cable (≤3% Drop)6× 400 mm²Drop: 0.67V (2.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 6.62V (27.58%)
Voltage at Load23.3 VLine Loss: 100.3 W
Max Power & Breaker3.6 kW150A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 150A at 250m
| 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 | 1070.0 V (4458.33%) | 0.0 V | 1765.0 V (7354.17%) | 160500.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 642.0 V (2675.0%) | 0.0 V | 1059.0 V (4412.5%) | 96300.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 401.25 V (1671.88%) | 0.0 V | 661.88 V (2757.81%) | 60187.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 267.5 V (1114.58%) | 0.0 V | 441.25 V (1838.54%) | 40125.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 160.5 V (668.75%) | 0.0 V | 264.75 V (1103.12%) | 24075.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 100.31 V (417.97%) | 0.0 V | 165.47 V (689.45%) | 15046.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 64.2 V (267.5%) | 0.0 V | 105.9 V (441.25%) | 9630.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 45.86 V (191.07%) | 0.0 V | 75.64 V (315.18%) | 6878.6 W | Drop High |
| 50 mm² | 151 A | 118 A | 32.1 V (133.75%) | 0.0 V | 52.95 V (220.62%) | 4815.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 22.93 V (95.54%) | 1.1 V | 37.82 V (157.59%) | 3439.3 W | Drop High |
| 95 mm² | 232 A | 181 A | 16.89 V (70.39%) | 7.1 V | 27.87 V (116.12%) | 2534.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 13.37 V (55.73%) | 10.6 V | 22.06 V (91.93%) | 2006.2 W | Drop High |
| 150 mm² | 309 A | 241 A | 10.7 V (44.58%) | 13.3 V | 17.65 V (73.54%) | 1605.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 8.68 V (36.15%) | 15.3 V | 14.31 V (59.63%) | 1301.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 6.69 V (27.86%) | 17.3 V | 11.03 V (45.96%) | 1003.1 W | Drop High |
| 300 mm² | 477 A | 372 A | 5.35 V (22.29%) | 18.6 V | 8.82 V (36.77%) | 802.5 W | Drop High |
| 400 mm² | 570 A | 445 A | 4.01 V (16.72%) | 20.0 V | 6.62 V (27.58%) | 601.9 W | Drop High |
FAQ — 150 Amp Cable Size at 250 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 150A at 250 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6× 400 mm² copper cable for 150A over 250m at 24V (voltage drop: 0.67V or 2.79%).
What is the power capacity of 150A at 24V?
At unity power factor, 150A at 24V supports 3.6 kW with a standard 150A circuit breaker.
Related Lengths & Currents (24V)
150A · 5m (24V)150A · 10m (24V)150A · 15m (24V)150A · 20m (24V)150A · 25m (24V)150A · 30m (24V)150A · 35m (24V)150A · 40m (24V)150A · 45m (24V)150A · 50m (24V)150A · 60m (24V)150A · 70m (24V)10A · 250m (24V)16A · 250m (24V)20A · 250m (24V)25A · 250m (24V)32A · 250m (24V)40A · 250m (24V)50A · 250m (24V)63A · 250m (24V)80A · 250m (24V)100A · 250m (24V)125A · 250m (24V)160A · 250m (24V)200A · 250m (24V)