25 Amp Cable Size at 150 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 25 A over 150 m (492.1 ft).
Copper Cable (≤3% Drop)16 mm²Drop: 8.69V (2.17%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 9.17V (2.29%)
Voltage at Load391.3 VLine Loss: 376.2 W
Max Power & Breaker17.32 kW25A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 25A 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 | 92.66 V (23.17%) | 307.3 V | 152.85 V (38.21%) | 4012.5 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 55.6 V (13.9%) | 344.4 V | 91.71 V (22.93%) | 2407.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 34.75 V (8.69%) | 365.3 V | 57.32 V (14.33%) | 1504.7 W | Drop High |
| 6 mm² | 41 A | 32 A | 23.17 V (5.79%) | 376.8 V | 38.21 V (9.55%) | 1003.1 W | Drop High |
| 10 mm² | 57 A | 44 A | 13.9 V (3.47%) | 386.1 V | 22.93 V (5.73%) | 601.9 W | ~ ≤5% |
| 16 mm² | 76 A | 59 A | 8.69 V (2.17%) | 391.3 V | 14.33 V (3.58%) | 376.2 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 5.56 V (1.39%) | 394.4 V | 9.17 V (2.29%) | 240.7 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 3.97 V (0.99%) | 396.0 V | 6.55 V (1.64%) | 172.0 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 2.78 V (0.69%) | 397.2 V | 4.59 V (1.15%) | 120.4 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 1.99 V (0.5%) | 398.0 V | 3.28 V (0.82%) | 86.0 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 1.46 V (0.37%) | 398.5 V | 2.41 V (0.6%) | 63.4 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 1.16 V (0.29%) | 398.8 V | 1.91 V (0.48%) | 50.2 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.93 V (0.23%) | 399.1 V | 1.53 V (0.38%) | 40.1 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.75 V (0.19%) | 399.2 V | 1.24 V (0.31%) | 32.5 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.58 V (0.14%) | 399.4 V | 0.96 V (0.24%) | 25.1 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.46 V (0.12%) | 399.5 V | 0.76 V (0.19%) | 20.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.35 V (0.09%) | 399.7 V | 0.57 V (0.14%) | 15.0 W | ✓ OK (≤3%) |
FAQ — 25 Amp Cable Size at 150 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 25A at 150 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 16 mm² copper cable for 25A over 150m at 400V (voltage drop: 8.69V or 2.17%).
What is the power capacity of 25A at 400V?
At unity power factor, 25A at 400V supports 17.32 kW with a standard 25A circuit breaker.
Related Lengths & Currents (400V)
25A · 5m (400V)25A · 10m (400V)25A · 15m (400V)25A · 20m (400V)25A · 25m (400V)25A · 30m (400V)25A · 35m (400V)25A · 40m (400V)25A · 45m (400V)25A · 50m (400V)25A · 60m (400V)25A · 70m (400V)10A · 150m (400V)16A · 150m (400V)20A · 150m (400V)32A · 150m (400V)40A · 150m (400V)50A · 150m (400V)63A · 150m (400V)80A · 150m (400V)100A · 150m (400V)125A · 150m (400V)160A · 150m (400V)200A · 150m (400V)