32 Amp Cable Size at 400 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 32 A over 400 m (1312.3 ft).
Copper Cable (≤3% Drop)50 mm²Drop: 9.49V (2.29%)
Aluminum Cable (≤3% Drop)70 mm²Drop: 11.18V (2.69%)
Voltage at Load405.5 VLine Loss: 525.9 W
Max Power & Breaker23.0 kW32A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A at 400m
| 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 | 316.3 V (76.22%) | 98.7 V | 521.74 V (125.72%) | 17530.9 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 189.78 V (45.73%) | 225.2 V | 313.04 V (75.43%) | 10518.5 W | Drop High |
| 4 mm² | 32 A | 25 A | 118.61 V (28.58%) | 296.4 V | 195.65 V (47.15%) | 6574.1 W | Drop High |
| 6 mm² | 41 A | 32 A | 79.07 V (19.05%) | 335.9 V | 130.43 V (31.43%) | 4382.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 47.44 V (11.43%) | 367.6 V | 78.26 V (18.86%) | 2629.6 W | Drop High |
| 16 mm² | 76 A | 59 A | 29.65 V (7.15%) | 385.3 V | 48.91 V (11.79%) | 1643.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 18.98 V (4.57%) | 396.0 V | 31.3 V (7.54%) | 1051.9 W | ~ ≤5% |
| 35 mm² | 125 A | 97 A | 13.56 V (3.27%) | 401.4 V | 22.36 V (5.39%) | 751.3 W | ~ ≤5% |
| 50 mm² | 151 A | 118 A | 9.49 V (2.29%) | 405.5 V | 15.65 V (3.77%) | 525.9 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 6.78 V (1.63%) | 408.2 V | 11.18 V (2.69%) | 375.7 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 4.99 V (1.2%) | 410.0 V | 8.24 V (1.99%) | 276.8 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 3.95 V (0.95%) | 411.0 V | 6.52 V (1.57%) | 219.1 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 3.16 V (0.76%) | 411.8 V | 5.22 V (1.26%) | 175.3 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 2.56 V (0.62%) | 412.4 V | 4.23 V (1.02%) | 142.1 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 1.98 V (0.48%) | 413.0 V | 3.26 V (0.79%) | 109.6 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.58 V (0.38%) | 413.4 V | 2.61 V (0.63%) | 87.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 1.19 V (0.29%) | 413.8 V | 1.96 V (0.47%) | 65.7 W | ✓ OK (≤3%) |
FAQ — 32 Amp Cable Size at 400 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 32A at 400 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 50 mm² copper cable for 32A over 400m at 415V (voltage drop: 9.49V or 2.29%).
What is the power capacity of 32A at 415V?
At unity power factor, 32A at 415V supports 23.0 kW with a standard 32A circuit breaker.
Related Lengths & Currents (415V)
32A · 5m (415V)32A · 10m (415V)32A · 15m (415V)32A · 20m (415V)32A · 25m (415V)32A · 30m (415V)32A · 35m (415V)32A · 40m (415V)32A · 45m (415V)32A · 50m (415V)32A · 60m (415V)32A · 70m (415V)10A · 400m (415V)16A · 400m (415V)20A · 400m (415V)25A · 400m (415V)40A · 400m (415V)50A · 400m (415V)63A · 400m (415V)80A · 400m (415V)100A · 400m (415V)125A · 400m (415V)160A · 400m (415V)200A · 400m (415V)