110 Amp Cable Size at 120 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 110 A over 120 m (393.7 ft).
Copper Cable (≤3% Drop)35 mm²Drop: 13.98V (2.03%)
Aluminum Cable (≤3% Drop)50 mm²Drop: 16.14V (2.34%)
Voltage at Load676.0 VLine Loss: 2663.4 W
Max Power & Breaker131.46 kW110A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 110A 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 | 326.18 V (47.27%) | 363.8 V | 538.04 V (77.98%) | 62145.6 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 195.71 V (28.36%) | 494.3 V | 322.83 V (46.79%) | 37287.4 W | Drop High |
| 4 mm² | 32 A | 25 A | 122.32 V (17.73%) | 567.7 V | 201.77 V (29.24%) | 23304.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 81.54 V (11.82%) | 608.5 V | 134.51 V (19.49%) | 15536.4 W | Drop High |
| 10 mm² | 57 A | 44 A | 48.93 V (7.09%) | 641.1 V | 80.71 V (11.7%) | 9321.8 W | Drop High |
| 16 mm² | 76 A | 59 A | 30.58 V (4.43%) | 659.4 V | 50.44 V (7.31%) | 5826.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 19.57 V (2.84%) | 670.4 V | 32.28 V (4.68%) | 3728.7 W | Drop High |
| 35 mm² | 125 A | 97 A | 13.98 V (2.03%) | 676.0 V | 23.06 V (3.34%) | 2663.4 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 9.79 V (1.42%) | 680.2 V | 16.14 V (2.34%) | 1864.4 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 6.99 V (1.01%) | 683.0 V | 11.53 V (1.67%) | 1331.7 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 5.15 V (0.75%) | 684.8 V | 8.5 V (1.23%) | 981.2 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 4.08 V (0.59%) | 685.9 V | 6.73 V (0.97%) | 776.8 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 3.26 V (0.47%) | 686.7 V | 5.38 V (0.78%) | 621.5 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 2.64 V (0.38%) | 687.4 V | 4.36 V (0.63%) | 503.9 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 2.04 V (0.3%) | 688.0 V | 3.36 V (0.49%) | 388.4 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.63 V (0.24%) | 688.4 V | 2.69 V (0.39%) | 310.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 1.22 V (0.18%) | 688.8 V | 2.02 V (0.29%) | 233.0 W | ✓ OK (≤3%) |
FAQ — 110 Amp Cable Size at 120 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 110A at 120 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 35 mm² copper cable for 110A over 120m at 690V (voltage drop: 13.98V or 2.03%).
What is the power capacity of 110A at 690V?
At unity power factor, 110A at 690V supports 131.46 kW with a standard 110A circuit breaker.
Related Lengths & Currents (690V)
110A · 5m (690V)110A · 10m (690V)110A · 15m (690V)110A · 20m (690V)110A · 25m (690V)110A · 30m (690V)110A · 35m (690V)110A · 40m (690V)110A · 45m (690V)110A · 50m (690V)110A · 60m (690V)110A · 70m (690V)10A · 120m (690V)16A · 120m (690V)20A · 120m (690V)25A · 120m (690V)32A · 120m (690V)40A · 120m (690V)50A · 120m (690V)63A · 120m (690V)80A · 120m (690V)100A · 120m (690V)125A · 120m (690V)160A · 120m (690V)200A · 120m (690V)