700 Amp Cable Size at 15 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 700 A over 15 m (49.2 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.48V (0.07%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.6V (0.23%)
Voltage at Load689.5 VLine Loss: 589.9 W
Max Power & Breaker836.58 kW700A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 700A at 15m
| 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 | 259.46 V (37.6%) | 430.5 V | 427.99 V (62.03%) | 314580.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 155.68 V (22.56%) | 534.3 V | 256.79 V (37.22%) | 188748.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 97.3 V (14.1%) | 592.7 V | 160.5 V (23.26%) | 117967.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 64.87 V (9.4%) | 625.1 V | 107.0 V (15.51%) | 78645.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 38.92 V (5.64%) | 651.1 V | 64.2 V (9.3%) | 47187.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 24.32 V (3.53%) | 665.7 V | 40.12 V (5.82%) | 29491.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 15.57 V (2.26%) | 674.4 V | 25.68 V (3.72%) | 18874.8 W | Drop High |
| 35 mm² | 125 A | 97 A | 11.12 V (1.61%) | 678.9 V | 18.34 V (2.66%) | 13482.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 7.78 V (1.13%) | 682.2 V | 12.84 V (1.86%) | 9437.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 5.56 V (0.81%) | 684.4 V | 9.17 V (1.33%) | 6741.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 4.1 V (0.59%) | 685.9 V | 6.76 V (0.98%) | 4967.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 3.24 V (0.47%) | 686.8 V | 5.35 V (0.78%) | 3932.2 W | Drop High |
| 150 mm² | 309 A | 241 A | 2.59 V (0.38%) | 687.4 V | 4.28 V (0.62%) | 3145.8 W | Drop High |
| 185 mm² | 353 A | 275 A | 2.1 V (0.3%) | 687.9 V | 3.47 V (0.5%) | 2550.6 W | Drop High |
| 240 mm² | 415 A | 324 A | 1.62 V (0.24%) | 688.4 V | 2.67 V (0.39%) | 1966.1 W | Drop High |
| 300 mm² | 477 A | 372 A | 1.3 V (0.19%) | 688.7 V | 2.14 V (0.31%) | 1572.9 W | Drop High |
| 400 mm² | 570 A | 445 A | 0.97 V (0.14%) | 689.0 V | 1.6 V (0.23%) | 1179.7 W | Drop High |
FAQ — 700 Amp Cable Size at 15 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 700A at 15 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 700A over 15m at 690V (voltage drop: 0.48V or 0.07%).
What is the power capacity of 700A at 690V?
At unity power factor, 700A at 690V supports 836.58 kW with a standard 700A circuit breaker.
Related Lengths & Currents (690V)
700A · 5m (690V)700A · 10m (690V)700A · 20m (690V)700A · 25m (690V)700A · 30m (690V)700A · 35m (690V)700A · 40m (690V)700A · 45m (690V)700A · 50m (690V)700A · 60m (690V)700A · 70m (690V)10A · 15m (690V)16A · 15m (690V)20A · 15m (690V)25A · 15m (690V)32A · 15m (690V)40A · 15m (690V)50A · 15m (690V)63A · 15m (690V)80A · 15m (690V)100A · 15m (690V)125A · 15m (690V)160A · 15m (690V)200A · 15m (690V)