900 Amp Cable Size at 350 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 900 A over 350 m (1148.3 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 14.6V (2.12%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 48.15V (6.98%)
Voltage at Load675.4 VLine Loss: 22750.9 W
Max Power & Breaker1075.6 kW1000A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 900A at 350m
| 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 | 7783.84 V (1128.09%) | 0.0 V | 12839.69 V (1860.83%) | 12133800.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 4670.3 V (676.86%) | 0.0 V | 7703.82 V (1116.5%) | 7280280.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2918.94 V (423.03%) | 0.0 V | 4814.88 V (697.81%) | 4550175.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1945.96 V (282.02%) | 0.0 V | 3209.92 V (465.21%) | 3033450.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1167.58 V (169.21%) | 0.0 V | 1925.95 V (279.12%) | 1820070.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 729.73 V (105.76%) | 0.0 V | 1203.72 V (174.45%) | 1137543.8 W | Drop High |
| 25 mm² | 101 A | 78 A | 467.03 V (67.69%) | 223.0 V | 770.38 V (111.65%) | 728028.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 333.59 V (48.35%) | 356.4 V | 550.27 V (79.75%) | 520020.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 233.52 V (33.84%) | 456.5 V | 385.19 V (55.82%) | 364014.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 166.8 V (24.17%) | 523.2 V | 275.14 V (39.87%) | 260010.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 122.9 V (17.81%) | 567.1 V | 202.73 V (29.38%) | 191586.3 W | Drop High |
| 120 mm² | 269 A | 210 A | 97.3 V (14.1%) | 592.7 V | 160.5 V (23.26%) | 151672.5 W | Drop High |
| 150 mm² | 309 A | 241 A | 77.84 V (11.28%) | 612.2 V | 128.4 V (18.61%) | 121338.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 63.11 V (9.15%) | 626.9 V | 104.11 V (15.09%) | 98382.2 W | Drop High |
| 240 mm² | 415 A | 324 A | 48.65 V (7.05%) | 641.4 V | 80.25 V (11.63%) | 75836.2 W | Drop High |
| 300 mm² | 477 A | 372 A | 38.92 V (5.64%) | 651.1 V | 64.2 V (9.3%) | 60669.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 29.19 V (4.23%) | 660.8 V | 48.15 V (6.98%) | 45501.8 W | Drop High |
FAQ — 900 Amp Cable Size at 350 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 900A at 350 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 900A over 350m at 690V (voltage drop: 14.6V or 2.12%).
What is the power capacity of 900A at 690V?
At unity power factor, 900A at 690V supports 1075.6 kW with a standard 1000A circuit breaker.
Related Lengths & Currents (690V)
900A · 5m (690V)900A · 10m (690V)900A · 15m (690V)900A · 20m (690V)900A · 25m (690V)900A · 30m (690V)900A · 35m (690V)900A · 40m (690V)900A · 45m (690V)900A · 50m (690V)900A · 60m (690V)900A · 70m (690V)10A · 350m (690V)16A · 350m (690V)20A · 350m (690V)25A · 350m (690V)32A · 350m (690V)40A · 350m (690V)50A · 350m (690V)63A · 350m (690V)80A · 350m (690V)100A · 350m (690V)125A · 350m (690V)160A · 350m (690V)200A · 350m (690V)