90 Amp Cable Size at 90 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 90 A over 90 m (295.3 ft).
Copper Cable (≤3% Drop)25 mm²Drop: 12.01V (2.89%)
Aluminum Cable (≤3% Drop)50 mm²Drop: 9.9V (2.39%)
Voltage at Load403.0 VLine Loss: 1872.1 W
Max Power & Breaker64.69 kW90A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 90A at 90m
| 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 | 200.16 V (48.23%) | 214.8 V | 330.16 V (79.56%) | 31201.2 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 120.09 V (28.94%) | 294.9 V | 198.1 V (47.73%) | 18720.7 W | Drop High |
| 4 mm² | 32 A | 25 A | 75.06 V (18.09%) | 339.9 V | 123.81 V (29.83%) | 11700.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 50.04 V (12.06%) | 365.0 V | 82.54 V (19.89%) | 7800.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 30.02 V (7.23%) | 385.0 V | 49.52 V (11.93%) | 4680.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 18.76 V (4.52%) | 396.2 V | 30.95 V (7.46%) | 2925.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 12.01 V (2.89%) | 403.0 V | 19.81 V (4.77%) | 1872.1 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 8.58 V (2.07%) | 406.4 V | 14.15 V (3.41%) | 1337.2 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 6.0 V (1.45%) | 409.0 V | 9.9 V (2.39%) | 936.0 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 4.29 V (1.03%) | 410.7 V | 7.07 V (1.7%) | 668.6 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 3.16 V (0.76%) | 411.8 V | 5.21 V (1.26%) | 492.7 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 2.5 V (0.6%) | 412.5 V | 4.13 V (0.99%) | 390.0 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 2.0 V (0.48%) | 413.0 V | 3.3 V (0.8%) | 312.0 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 1.62 V (0.39%) | 413.4 V | 2.68 V (0.65%) | 253.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 1.25 V (0.3%) | 413.7 V | 2.06 V (0.5%) | 195.0 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.0 V (0.24%) | 414.0 V | 1.65 V (0.4%) | 156.0 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.75 V (0.18%) | 414.2 V | 1.24 V (0.3%) | 117.0 W | ✓ OK (≤3%) |
FAQ — 90 Amp Cable Size at 90 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 90A at 90 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 25 mm² copper cable for 90A over 90m at 415V (voltage drop: 12.01V or 2.89%).
What is the power capacity of 90A at 415V?
At unity power factor, 90A at 415V supports 64.69 kW with a standard 90A circuit breaker.
Related Lengths & Currents (415V)
90A · 5m (415V)90A · 10m (415V)90A · 15m (415V)90A · 20m (415V)90A · 25m (415V)90A · 30m (415V)90A · 35m (415V)90A · 40m (415V)90A · 45m (415V)90A · 50m (415V)90A · 60m (415V)90A · 70m (415V)10A · 90m (415V)16A · 90m (415V)20A · 90m (415V)25A · 90m (415V)32A · 90m (415V)40A · 90m (415V)50A · 90m (415V)63A · 90m (415V)80A · 90m (415V)100A · 90m (415V)125A · 90m (415V)160A · 90m (415V)200A · 90m (415V)