45 Amp Cable Size at 350 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 350 m (1148.3 ft).
Copper Cable (≤3% Drop)120 mm²Drop: 5.62V (2.44%)
Aluminum Cable (≤3% Drop)185 mm²Drop: 6.01V (2.61%)
Voltage at Load224.4 VLine Loss: 252.8 W
Max Power & Breaker10.35 kW45A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 45A at 350m
| 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 | 449.4 V (195.39%) | 0.0 V | 741.3 V (322.3%) | 20223.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 269.64 V (117.23%) | 0.0 V | 444.78 V (193.38%) | 12133.8 W | Drop High |
| 4 mm² | 32 A | 25 A | 168.52 V (73.27%) | 61.5 V | 277.99 V (120.86%) | 7583.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 112.35 V (48.85%) | 117.7 V | 185.32 V (80.58%) | 5055.8 W | Drop High |
| 10 mm² | 57 A | 44 A | 67.41 V (29.31%) | 162.6 V | 111.19 V (48.35%) | 3033.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 42.13 V (18.32%) | 187.9 V | 69.5 V (30.22%) | 1895.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 26.96 V (11.72%) | 203.0 V | 44.48 V (19.34%) | 1213.4 W | Drop High |
| 35 mm² | 125 A | 97 A | 19.26 V (8.37%) | 210.7 V | 31.77 V (13.81%) | 866.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 13.48 V (5.86%) | 216.5 V | 22.24 V (9.67%) | 606.7 W | Drop High |
| 70 mm² | 192 A | 150 A | 9.63 V (4.19%) | 220.4 V | 15.88 V (6.91%) | 433.3 W | ~ ≤5% |
| 95 mm² | 232 A | 181 A | 7.1 V (3.09%) | 222.9 V | 11.7 V (5.09%) | 319.3 W | ~ ≤5% |
| 120 mm² | 269 A | 210 A | 5.62 V (2.44%) | 224.4 V | 9.27 V (4.03%) | 252.8 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 4.49 V (1.95%) | 225.5 V | 7.41 V (3.22%) | 202.2 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 3.64 V (1.58%) | 226.4 V | 6.01 V (2.61%) | 164.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 2.81 V (1.22%) | 227.2 V | 4.63 V (2.01%) | 126.4 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 2.25 V (0.98%) | 227.8 V | 3.71 V (1.61%) | 101.1 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 1.69 V (0.73%) | 228.3 V | 2.78 V (1.21%) | 75.8 W | ✓ OK (≤3%) |
FAQ — 45 Amp Cable Size at 350 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 45A at 350 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 120 mm² copper cable for 45A over 350m at 230V (voltage drop: 5.62V or 2.44%).
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 · 350m (230V)16A · 350m (230V)20A · 350m (230V)25A · 350m (230V)32A · 350m (230V)40A · 350m (230V)50A · 350m (230V)63A · 350m (230V)80A · 350m (230V)100A · 350m (230V)125A · 350m (230V)160A · 350m (230V)200A · 350m (230V)