750 Amp Cable Size at 35 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 35 m (114.8 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 1.22V (0.17%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 4.01V (0.58%)
Voltage at Load688.8 VLine Loss: 1579.9 W
Max Power & Breaker896.34 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 750A at 35m
| 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 | 648.65 V (94.01%) | 41.3 V | 1069.97 V (155.07%) | 842625.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 389.19 V (56.4%) | 300.8 V | 641.98 V (93.04%) | 505575.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 243.24 V (35.25%) | 446.8 V | 401.24 V (58.15%) | 315984.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 162.16 V (23.5%) | 527.8 V | 267.49 V (38.77%) | 210656.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 97.3 V (14.1%) | 592.7 V | 160.5 V (23.26%) | 126393.7 W | Drop High |
| 16 mm² | 76 A | 59 A | 60.81 V (8.81%) | 629.2 V | 100.31 V (14.54%) | 78996.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 38.92 V (5.64%) | 651.1 V | 64.2 V (9.3%) | 50557.5 W | Drop High |
| 35 mm² | 125 A | 97 A | 27.8 V (4.03%) | 662.2 V | 45.86 V (6.65%) | 36112.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 19.46 V (2.82%) | 670.5 V | 32.1 V (4.65%) | 25278.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 13.9 V (2.01%) | 676.1 V | 22.93 V (3.32%) | 18056.2 W | Drop High |
| 95 mm² | 232 A | 181 A | 10.24 V (1.48%) | 679.8 V | 16.89 V (2.45%) | 13304.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 8.11 V (1.18%) | 681.9 V | 13.37 V (1.94%) | 10532.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 6.49 V (0.94%) | 683.5 V | 10.7 V (1.55%) | 8426.2 W | Drop High |
| 185 mm² | 353 A | 275 A | 5.26 V (0.76%) | 684.7 V | 8.68 V (1.26%) | 6832.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 4.05 V (0.59%) | 685.9 V | 6.69 V (0.97%) | 5266.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 3.24 V (0.47%) | 686.8 V | 5.35 V (0.78%) | 4213.1 W | Drop High |
| 400 mm² | 570 A | 445 A | 2.43 V (0.35%) | 687.6 V | 4.01 V (0.58%) | 3159.8 W | Drop High |
FAQ — 750 Amp Cable Size at 35 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 750A at 35 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 35m at 690V (voltage drop: 1.22V or 0.17%).
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 · 40m (690V)750A · 45m (690V)750A · 50m (690V)750A · 60m (690V)750A · 70m (690V)10A · 35m (690V)16A · 35m (690V)20A · 35m (690V)25A · 35m (690V)32A · 35m (690V)40A · 35m (690V)50A · 35m (690V)63A · 35m (690V)80A · 35m (690V)100A · 35m (690V)125A · 35m (690V)160A · 35m (690V)200A · 35m (690V)