750 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 750 A over 175 m (574.1 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 6.08V (0.88%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 20.06V (2.91%)
Voltage at Load683.9 VLine Loss: 7899.6 W
Max Power & Breaker896.34 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 750A 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 | 3243.27 V (470.04%) | 0.0 V | 5349.87 V (775.34%) | 4213125.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1945.96 V (282.02%) | 0.0 V | 3209.92 V (465.21%) | 2527875.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1216.22 V (176.26%) | 0.0 V | 2006.2 V (290.75%) | 1579921.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 810.82 V (117.51%) | 0.0 V | 1337.47 V (193.84%) | 1053281.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 486.49 V (70.51%) | 203.5 V | 802.48 V (116.3%) | 631968.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 304.06 V (44.07%) | 385.9 V | 501.55 V (72.69%) | 394980.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 194.6 V (28.2%) | 495.4 V | 320.99 V (46.52%) | 252787.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 139.0 V (20.14%) | 551.0 V | 229.28 V (33.23%) | 180562.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 97.3 V (14.1%) | 592.7 V | 160.5 V (23.26%) | 126393.7 W | Drop High |
| 70 mm² | 192 A | 150 A | 69.5 V (10.07%) | 620.5 V | 114.64 V (16.61%) | 90281.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 51.21 V (7.42%) | 638.8 V | 84.47 V (12.24%) | 66523.0 W | Drop High |
| 120 mm² | 269 A | 210 A | 40.54 V (5.88%) | 649.5 V | 66.87 V (9.69%) | 52664.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 32.43 V (4.7%) | 657.6 V | 53.5 V (7.75%) | 42131.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 26.3 V (3.81%) | 663.7 V | 43.38 V (6.29%) | 34160.5 W | Drop High |
| 240 mm² | 415 A | 324 A | 20.27 V (2.94%) | 669.7 V | 33.44 V (4.85%) | 26332.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 16.22 V (2.35%) | 673.8 V | 26.75 V (3.88%) | 21065.6 W | Drop High |
| 400 mm² | 570 A | 445 A | 12.16 V (1.76%) | 677.8 V | 20.06 V (2.91%) | 15799.2 W | Drop High |
FAQ — 750 Amp Cable Size at 175 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 750A at 175 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 750A over 175m at 690V (voltage drop: 6.08V or 0.88%).
What is the power capacity of 750A at 690V?
At unity power factor, 750A at 690V supports 896.34 kW with a standard 800A circuit breaker.
Related Lengths & Currents (690V)
750A · 5m (690V)750A · 10m (690V)750A · 15m (690V)750A · 20m (690V)750A · 25m (690V)750A · 30m (690V)750A · 35m (690V)750A · 40m (690V)750A · 45m (690V)750A · 50m (690V)750A · 60m (690V)750A · 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)