700 Amp Cable Size at 50 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 700 A over 50 m (164.0 ft).
Copper Cable (≤3% Drop)6× 400 mm²Drop: 0.62V (2.6%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 6.18V (25.74%)
Voltage at Load23.4 VLine Loss: 436.9 W
Max Power & Breaker16.8 kW700A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 700A at 50m
| 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 | 998.67 V (4161.11%) | 0.0 V | 1647.33 V (6863.89%) | 699066.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 599.2 V (2496.67%) | 0.0 V | 988.4 V (4118.33%) | 419440.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 374.5 V (1560.42%) | 0.0 V | 617.75 V (2573.96%) | 262150.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 249.67 V (1040.28%) | 0.0 V | 411.83 V (1715.97%) | 174766.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 149.8 V (624.17%) | 0.0 V | 247.1 V (1029.58%) | 104860.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 93.62 V (390.1%) | 0.0 V | 154.44 V (643.49%) | 65537.5 W | Drop High |
| 25 mm² | 101 A | 78 A | 59.92 V (249.67%) | 0.0 V | 98.84 V (411.83%) | 41944.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 42.8 V (178.33%) | 0.0 V | 70.6 V (294.17%) | 29960.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 29.96 V (124.83%) | 0.0 V | 49.42 V (205.92%) | 20972.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 21.4 V (89.17%) | 2.6 V | 35.3 V (147.08%) | 14980.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 15.77 V (65.7%) | 8.2 V | 26.01 V (108.38%) | 11037.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 12.48 V (52.01%) | 11.5 V | 20.59 V (85.8%) | 8738.3 W | Drop High |
| 150 mm² | 309 A | 241 A | 9.99 V (41.61%) | 14.0 V | 16.47 V (68.64%) | 6990.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 8.1 V (33.74%) | 15.9 V | 13.36 V (55.65%) | 5668.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 6.24 V (26.01%) | 17.8 V | 10.3 V (42.9%) | 4369.2 W | Drop High |
| 300 mm² | 477 A | 372 A | 4.99 V (20.81%) | 19.0 V | 8.24 V (34.32%) | 3495.3 W | Drop High |
| 400 mm² | 570 A | 445 A | 3.74 V (15.6%) | 20.3 V | 6.18 V (25.74%) | 2621.5 W | Drop High |
FAQ — 700 Amp Cable Size at 50 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 700A at 50 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 6× 400 mm² copper cable for 700A over 50m at 24V (voltage drop: 0.62V or 2.6%).
What is the power capacity of 700A at 24V?
At unity power factor, 700A at 24V supports 16.8 kW with a standard 700A circuit breaker.
Related Lengths & Currents (24V)
700A · 5m (24V)700A · 10m (24V)700A · 15m (24V)700A · 20m (24V)700A · 25m (24V)700A · 30m (24V)700A · 35m (24V)700A · 40m (24V)700A · 45m (24V)700A · 60m (24V)700A · 70m (24V)10A · 50m (24V)16A · 50m (24V)20A · 50m (24V)25A · 50m (24V)32A · 50m (24V)40A · 50m (24V)50A · 50m (24V)63A · 50m (24V)80A · 50m (24V)100A · 50m (24V)125A · 50m (24V)160A · 50m (24V)200A · 50m (24V)