175 Amp Cable Size at 40 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 175 A over 40 m (131.2 ft).
Copper Cable (≤3% Drop)70 mm²Drop: 4.28V (1.86%)
Aluminum Cable (≤3% Drop)95 mm²Drop: 5.2V (2.26%)
Voltage at Load225.7 VLine Loss: 749.0 W
Max Power & Breaker40.25 kW175A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 175A at 40m
| 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 | 199.73 V (86.84%) | 30.3 V | 329.47 V (143.25%) | 34953.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 119.84 V (52.1%) | 110.2 V | 197.68 V (85.95%) | 20972.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 74.9 V (32.57%) | 155.1 V | 123.55 V (53.72%) | 13107.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 49.93 V (21.71%) | 180.1 V | 82.37 V (35.81%) | 8738.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 29.96 V (13.03%) | 200.0 V | 49.42 V (21.49%) | 5243.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 18.72 V (8.14%) | 211.3 V | 30.89 V (13.43%) | 3276.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 11.98 V (5.21%) | 218.0 V | 19.77 V (8.59%) | 2097.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 8.56 V (3.72%) | 221.4 V | 14.12 V (6.14%) | 1498.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 5.99 V (2.61%) | 224.0 V | 9.88 V (4.3%) | 1048.6 W | Drop High |
| 70 mm² | 192 A | 150 A | 4.28 V (1.86%) | 225.7 V | 7.06 V (3.07%) | 749.0 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 3.15 V (1.37%) | 226.8 V | 5.2 V (2.26%) | 551.9 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 2.5 V (1.09%) | 227.5 V | 4.12 V (1.79%) | 436.9 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 2.0 V (0.87%) | 228.0 V | 3.29 V (1.43%) | 349.5 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 1.62 V (0.7%) | 228.4 V | 2.67 V (1.16%) | 283.4 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 1.25 V (0.54%) | 228.8 V | 2.06 V (0.9%) | 218.5 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.0 V (0.43%) | 229.0 V | 1.65 V (0.72%) | 174.8 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.75 V (0.33%) | 229.3 V | 1.24 V (0.54%) | 131.1 W | ✓ OK (≤3%) |
FAQ — 175 Amp Cable Size at 40 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 175A at 40 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 70 mm² copper cable for 175A over 40m at 230V (voltage drop: 4.28V or 1.86%).
What is the power capacity of 175A at 230V?
At unity power factor, 175A at 230V supports 40.25 kW with a standard 175A circuit breaker.
Related Lengths & Currents (230V)
175A · 5m (230V)175A · 10m (230V)175A · 15m (230V)175A · 20m (230V)175A · 25m (230V)175A · 30m (230V)175A · 35m (230V)175A · 45m (230V)175A · 50m (230V)175A · 60m (230V)175A · 70m (230V)10A · 40m (230V)16A · 40m (230V)20A · 40m (230V)25A · 40m (230V)32A · 40m (230V)40A · 40m (230V)50A · 40m (230V)63A · 40m (230V)80A · 40m (230V)100A · 40m (230V)125A · 40m (230V)160A · 40m (230V)200A · 40m (230V)