45 Amp Cable Size at 175 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 45 A over 175 m (574.1 ft).
Copper Cable (≤3% Drop)50 mm²Drop: 6.74V (2.93%)
Aluminum Cable (≤3% Drop)95 mm²Drop: 5.85V (2.54%)
Voltage at Load223.3 VLine Loss: 303.3 W
Max Power & Breaker10.35 kW45A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 45A at 175m
| 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 | 224.7 V (97.7%) | 5.3 V | 370.65 V (161.15%) | 10111.5 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 134.82 V (58.62%) | 95.2 V | 222.39 V (96.69%) | 6066.9 W | Drop High |
| 4 mm² | 32 A | 25 A | 84.26 V (36.64%) | 145.7 V | 138.99 V (60.43%) | 3791.8 W | Drop High |
| 6 mm² | 41 A | 32 A | 56.17 V (24.42%) | 173.8 V | 92.66 V (40.29%) | 2527.9 W | Drop High |
| 10 mm² | 57 A | 44 A | 33.7 V (14.65%) | 196.3 V | 55.6 V (24.17%) | 1516.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 21.07 V (9.16%) | 208.9 V | 34.75 V (15.11%) | 948.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 13.48 V (5.86%) | 216.5 V | 22.24 V (9.67%) | 606.7 W | Drop High |
| 35 mm² | 125 A | 97 A | 9.63 V (4.19%) | 220.4 V | 15.88 V (6.91%) | 433.3 W | ~ ≤5% |
| 50 mm² | 151 A | 118 A | 6.74 V (2.93%) | 223.3 V | 11.12 V (4.83%) | 303.3 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 4.81 V (2.09%) | 225.2 V | 7.94 V (3.45%) | 216.7 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 3.55 V (1.54%) | 226.5 V | 5.85 V (2.54%) | 159.7 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 2.81 V (1.22%) | 227.2 V | 4.63 V (2.01%) | 126.4 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 2.25 V (0.98%) | 227.8 V | 3.71 V (1.61%) | 101.1 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 1.82 V (0.79%) | 228.2 V | 3.01 V (1.31%) | 82.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 1.4 V (0.61%) | 228.6 V | 2.32 V (1.01%) | 63.2 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.12 V (0.49%) | 228.9 V | 1.85 V (0.81%) | 50.6 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.84 V (0.37%) | 229.2 V | 1.39 V (0.6%) | 37.9 W | ✓ OK (≤3%) |
FAQ — 45 Amp Cable Size at 175 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 45A at 175 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 50 mm² copper cable for 45A over 175m at 230V (voltage drop: 6.74V or 2.93%).
What is the power capacity of 45A at 230V?
At unity power factor, 45A at 230V supports 10.35 kW with a standard 45A circuit breaker.
Related Lengths & Currents (230V)
45A · 5m (230V)45A · 10m (230V)45A · 15m (230V)45A · 20m (230V)45A · 25m (230V)45A · 30m (230V)45A · 35m (230V)45A · 40m (230V)45A · 45m (230V)45A · 50m (230V)45A · 60m (230V)45A · 70m (230V)10A · 175m (230V)16A · 175m (230V)20A · 175m (230V)25A · 175m (230V)32A · 175m (230V)40A · 175m (230V)50A · 175m (230V)63A · 175m (230V)80A · 175m (230V)100A · 175m (230V)125A · 175m (230V)160A · 175m (230V)200A · 175m (230V)