450 Amp Cable Size at 175 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 450 A over 175 m (574.1 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 9.73V (1.41%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 12.04V (1.74%)
Voltage at Load680.3 VLine Loss: 7583.6 W
Max Power & Breaker537.8 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 450A at 175m
| 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 | 1945.96 V (282.02%) | 0.0 V | 3209.92 V (465.21%) | 1516725.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1167.58 V (169.21%) | 0.0 V | 1925.95 V (279.12%) | 910035.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 729.73 V (105.76%) | 0.0 V | 1203.72 V (174.45%) | 568771.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 486.49 V (70.51%) | 203.5 V | 802.48 V (116.3%) | 379181.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 291.89 V (42.3%) | 398.1 V | 481.49 V (69.78%) | 227508.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 182.43 V (26.44%) | 507.6 V | 300.93 V (43.61%) | 142193.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 116.76 V (16.92%) | 573.2 V | 192.6 V (27.91%) | 91003.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 83.4 V (12.09%) | 606.6 V | 137.57 V (19.94%) | 65002.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 58.38 V (8.46%) | 631.6 V | 96.3 V (13.96%) | 45501.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 41.7 V (6.04%) | 648.3 V | 68.78 V (9.97%) | 32501.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 30.73 V (4.45%) | 659.3 V | 50.68 V (7.35%) | 23948.3 W | Drop High |
| 120 mm² | 269 A | 210 A | 24.32 V (3.53%) | 665.7 V | 40.12 V (5.82%) | 18959.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 19.46 V (2.82%) | 670.5 V | 32.1 V (4.65%) | 15167.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 15.78 V (2.29%) | 674.2 V | 26.03 V (3.77%) | 12297.8 W | Drop High |
| 240 mm² | 415 A | 324 A | 12.16 V (1.76%) | 677.8 V | 20.06 V (2.91%) | 9479.5 W | Drop High |
| 300 mm² | 477 A | 372 A | 9.73 V (1.41%) | 680.3 V | 16.05 V (2.33%) | 7583.6 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 7.3 V (1.06%) | 682.7 V | 12.04 V (1.74%) | 5687.7 W | ✓ OK (≤3%) |
FAQ — 450 Amp Cable Size at 175 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 450A at 175 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 450A over 175m at 690V (voltage drop: 9.73V or 1.41%).
What is the power capacity of 450A at 690V?
At unity power factor, 450A at 690V supports 537.8 kW with a standard 450A circuit breaker.
Related Lengths & Currents (690V)
450A · 5m (690V)450A · 10m (690V)450A · 15m (690V)450A · 20m (690V)450A · 25m (690V)450A · 30m (690V)450A · 35m (690V)450A · 40m (690V)450A · 45m (690V)450A · 50m (690V)450A · 60m (690V)450A · 70m (690V)10A · 175m (690V)16A · 175m (690V)20A · 175m (690V)25A · 175m (690V)32A · 175m (690V)40A · 175m (690V)50A · 175m (690V)63A · 175m (690V)80A · 175m (690V)100A · 175m (690V)125A · 175m (690V)160A · 175m (690V)200A · 175m (690V)