425 Amp Cable Size at 60 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 425 A over 60 m (196.9 ft).
Copper Cable (≤3% Drop)300 mm²Drop: 3.15V (0.46%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.9V (0.56%)
Voltage at Load686.8 VLine Loss: 2319.2 W
Max Power & Breaker507.92 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 425A at 60m
| 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 | 630.12 V (91.32%) | 59.9 V | 1039.4 V (150.64%) | 463845.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 378.07 V (54.79%) | 311.9 V | 623.64 V (90.38%) | 278307.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 236.3 V (34.25%) | 453.7 V | 389.78 V (56.49%) | 173941.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 157.53 V (22.83%) | 532.5 V | 259.85 V (37.66%) | 115961.2 W | Drop High |
| 10 mm² | 57 A | 44 A | 94.52 V (13.7%) | 595.5 V | 155.91 V (22.6%) | 69576.8 W | Drop High |
| 16 mm² | 76 A | 59 A | 59.07 V (8.56%) | 630.9 V | 97.44 V (14.12%) | 43485.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 37.81 V (5.48%) | 652.2 V | 62.36 V (9.04%) | 27830.7 W | Drop High |
| 35 mm² | 125 A | 97 A | 27.01 V (3.91%) | 663.0 V | 44.55 V (6.46%) | 19879.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 18.9 V (2.74%) | 671.1 V | 31.18 V (4.52%) | 13915.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 13.5 V (1.96%) | 676.5 V | 22.27 V (3.23%) | 9939.5 W | Drop High |
| 95 mm² | 232 A | 181 A | 9.95 V (1.44%) | 680.1 V | 16.41 V (2.38%) | 7323.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 7.88 V (1.14%) | 682.1 V | 12.99 V (1.88%) | 5798.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 6.3 V (0.91%) | 683.7 V | 10.39 V (1.51%) | 4638.4 W | Drop High |
| 185 mm² | 353 A | 275 A | 5.11 V (0.74%) | 684.9 V | 8.43 V (1.22%) | 3760.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 3.94 V (0.57%) | 686.1 V | 6.5 V (0.94%) | 2899.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 3.15 V (0.46%) | 686.8 V | 5.2 V (0.75%) | 2319.2 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 2.36 V (0.34%) | 687.6 V | 3.9 V (0.56%) | 1739.4 W | ✓ OK (≤3%) |
FAQ — 425 Amp Cable Size at 60 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 425A at 60 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 425A over 60m at 690V (voltage drop: 3.15V or 0.46%).
What is the power capacity of 425A at 690V?
At unity power factor, 425A at 690V supports 507.92 kW with a standard 450A circuit breaker.
Related Lengths & Currents (690V)
425A · 5m (690V)425A · 10m (690V)425A · 15m (690V)425A · 20m (690V)425A · 25m (690V)425A · 30m (690V)425A · 35m (690V)425A · 40m (690V)425A · 45m (690V)425A · 50m (690V)425A · 70m (690V)10A · 60m (690V)16A · 60m (690V)20A · 60m (690V)25A · 60m (690V)32A · 60m (690V)40A · 60m (690V)50A · 60m (690V)63A · 60m (690V)80A · 60m (690V)100A · 60m (690V)125A · 60m (690V)160A · 60m (690V)200A · 60m (690V)