16 Amp Cable Size at 120 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 16 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)6 mm²Drop: 11.86V (2.86%)
Aluminum Cable (≤3% Drop)10 mm²Drop: 11.74V (2.83%)
Voltage at Load403.1 VLine Loss: 328.7 W
Max Power & Breaker11.5 kW16A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 16A at 120m
| 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 | 47.44 V (11.43%) | 367.6 V | 78.26 V (18.86%) | 1314.8 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 28.47 V (6.86%) | 386.5 V | 46.96 V (11.31%) | 788.9 W | Drop High |
| 4 mm² | 32 A | 25 A | 17.79 V (4.29%) | 397.2 V | 29.35 V (7.07%) | 493.1 W | ~ ≤5% |
| 6 mm² | 41 A | 32 A | 11.86 V (2.86%) | 403.1 V | 19.57 V (4.71%) | 328.7 W | ✓ OK (≤3%) |
| 10 mm² | 57 A | 44 A | 7.12 V (1.71%) | 407.9 V | 11.74 V (2.83%) | 197.2 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 4.45 V (1.07%) | 410.6 V | 7.34 V (1.77%) | 123.3 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 2.85 V (0.69%) | 412.2 V | 4.7 V (1.13%) | 78.9 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 2.03 V (0.49%) | 413.0 V | 3.35 V (0.81%) | 56.3 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.42 V (0.34%) | 413.6 V | 2.35 V (0.57%) | 39.4 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 1.02 V (0.24%) | 414.0 V | 1.68 V (0.4%) | 28.2 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.75 V (0.18%) | 414.3 V | 1.24 V (0.3%) | 20.8 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.59 V (0.14%) | 414.4 V | 0.98 V (0.24%) | 16.4 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.47 V (0.11%) | 414.5 V | 0.78 V (0.19%) | 13.1 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.38 V (0.09%) | 414.6 V | 0.63 V (0.15%) | 10.7 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.3 V (0.07%) | 414.7 V | 0.49 V (0.12%) | 8.2 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.24 V (0.06%) | 414.8 V | 0.39 V (0.09%) | 6.6 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.18 V (0.04%) | 414.8 V | 0.29 V (0.07%) | 4.9 W | ✓ OK (≤3%) |
FAQ — 16 Amp Cable Size at 120 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 16A at 120 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6 mm² copper cable for 16A over 120m at 415V (voltage drop: 11.86V or 2.86%).
What is the power capacity of 16A at 415V?
At unity power factor, 16A at 415V supports 11.5 kW with a standard 16A circuit breaker.
Related Lengths & Currents (415V)
16A · 5m (415V)16A · 10m (415V)16A · 15m (415V)16A · 20m (415V)16A · 25m (415V)16A · 30m (415V)16A · 35m (415V)16A · 40m (415V)16A · 45m (415V)16A · 50m (415V)16A · 60m (415V)16A · 70m (415V)10A · 120m (415V)20A · 120m (415V)25A · 120m (415V)32A · 120m (415V)40A · 120m (415V)50A · 120m (415V)63A · 120m (415V)80A · 120m (415V)100A · 120m (415V)125A · 120m (415V)160A · 120m (415V)200A · 120m (415V)