110 Amp Cable Size at 20 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 110 A over 20 m (65.6 ft).
Copper Cable (≤3% Drop)35 mm²Drop: 2.33V (0.56%)
Aluminum Cable (≤3% Drop)50 mm²Drop: 2.69V (0.65%)
Voltage at Load412.7 VLine Loss: 443.9 W
Max Power & Breaker79.07 kW110A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 110A at 20m
| 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 | 54.36 V (13.1%) | 360.6 V | 89.67 V (21.61%) | 10357.6 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 32.62 V (7.86%) | 382.4 V | 53.8 V (12.96%) | 6214.6 W | Drop High |
| 4 mm² | 32 A | 25 A | 20.39 V (4.91%) | 394.6 V | 33.63 V (8.1%) | 3884.1 W | Drop High |
| 6 mm² | 41 A | 32 A | 13.59 V (3.27%) | 401.4 V | 22.42 V (5.4%) | 2589.4 W | Drop High |
| 10 mm² | 57 A | 44 A | 8.15 V (1.96%) | 406.8 V | 13.45 V (3.24%) | 1553.6 W | Drop High |
| 16 mm² | 76 A | 59 A | 5.1 V (1.23%) | 409.9 V | 8.41 V (2.03%) | 971.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 3.26 V (0.79%) | 411.7 V | 5.38 V (1.3%) | 621.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 2.33 V (0.56%) | 412.7 V | 3.84 V (0.93%) | 443.9 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.63 V (0.39%) | 413.4 V | 2.69 V (0.65%) | 310.7 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 1.16 V (0.28%) | 413.8 V | 1.92 V (0.46%) | 221.9 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.86 V (0.21%) | 414.1 V | 1.42 V (0.34%) | 163.5 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.68 V (0.16%) | 414.3 V | 1.12 V (0.27%) | 129.5 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.54 V (0.13%) | 414.5 V | 0.9 V (0.22%) | 103.6 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.44 V (0.11%) | 414.6 V | 0.73 V (0.18%) | 84.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.34 V (0.08%) | 414.7 V | 0.56 V (0.14%) | 64.7 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.27 V (0.07%) | 414.7 V | 0.45 V (0.11%) | 51.8 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.2 V (0.05%) | 414.8 V | 0.34 V (0.08%) | 38.8 W | ✓ OK (≤3%) |
FAQ — 110 Amp Cable Size at 20 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 110A at 20 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 35 mm² copper cable for 110A over 20m at 415V (voltage drop: 2.33V or 0.56%).
What is the power capacity of 110A at 415V?
At unity power factor, 110A at 415V supports 79.07 kW with a standard 110A circuit breaker.
Related Lengths & Currents (415V)
110A · 5m (415V)110A · 10m (415V)110A · 15m (415V)110A · 25m (415V)110A · 30m (415V)110A · 35m (415V)110A · 40m (415V)110A · 45m (415V)110A · 50m (415V)110A · 60m (415V)110A · 70m (415V)10A · 20m (415V)16A · 20m (415V)20A · 20m (415V)25A · 20m (415V)32A · 20m (415V)40A · 20m (415V)50A · 20m (415V)63A · 20m (415V)80A · 20m (415V)100A · 20m (415V)125A · 20m (415V)160A · 20m (415V)200A · 20m (415V)