32 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 32 A over 40 m (131.2 ft).
Copper Cable (≤3% Drop)10 mm²Drop: 5.48V (2.38%)
Aluminum Cable (≤3% Drop)16 mm²Drop: 5.65V (2.46%)
Voltage at Load224.5 VLine Loss: 175.3 W
Max Power & Breaker7.36 kW32A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A 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 | 36.52 V (15.88%) | 193.5 V | 60.25 V (26.19%) | 1168.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 21.91 V (9.53%) | 208.1 V | 36.15 V (15.72%) | 701.2 W | Drop High |
| 4 mm² | 32 A | 25 A | 13.7 V (5.95%) | 216.3 V | 22.59 V (9.82%) | 438.3 W | Drop High |
| 6 mm² | 41 A | 32 A | 9.13 V (3.97%) | 220.9 V | 15.06 V (6.55%) | 292.2 W | ~ ≤5% |
| 10 mm² | 57 A | 44 A | 5.48 V (2.38%) | 224.5 V | 9.04 V (3.93%) | 175.3 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 3.42 V (1.49%) | 226.6 V | 5.65 V (2.46%) | 109.6 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 2.19 V (0.95%) | 227.8 V | 3.61 V (1.57%) | 70.1 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.57 V (0.68%) | 228.4 V | 2.58 V (1.12%) | 50.1 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.1 V (0.48%) | 228.9 V | 1.81 V (0.79%) | 35.1 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.78 V (0.34%) | 229.2 V | 1.29 V (0.56%) | 25.0 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.58 V (0.25%) | 229.4 V | 0.95 V (0.41%) | 18.5 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.46 V (0.2%) | 229.5 V | 0.75 V (0.33%) | 14.6 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.37 V (0.16%) | 229.6 V | 0.6 V (0.26%) | 11.7 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.3 V (0.13%) | 229.7 V | 0.49 V (0.21%) | 9.5 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.23 V (0.1%) | 229.8 V | 0.38 V (0.16%) | 7.3 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.18 V (0.08%) | 229.8 V | 0.3 V (0.13%) | 5.8 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.14 V (0.06%) | 229.9 V | 0.23 V (0.1%) | 4.4 W | ✓ OK (≤3%) |
FAQ — 32 Amp Cable Size at 40 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 32A at 40 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 10 mm² copper cable for 32A over 40m at 230V (voltage drop: 5.48V or 2.38%).
What is the power capacity of 32A at 230V?
At unity power factor, 32A at 230V supports 7.36 kW with a standard 32A circuit breaker.
Related Lengths & Currents (230V)
32A · 5m (230V)32A · 10m (230V)32A · 15m (230V)32A · 20m (230V)32A · 25m (230V)32A · 30m (230V)32A · 35m (230V)32A · 45m (230V)32A · 50m (230V)32A · 60m (230V)32A · 70m (230V)10A · 40m (230V)16A · 40m (230V)20A · 40m (230V)25A · 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)