550 Amp Cable Size at 100 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 550 A over 100 m (328.1 ft).
Copper Cable (≤3% Drop)9× 400 mm²Drop: 0.65V (2.72%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 9.71V (40.45%)
Voltage at Load23.4 VLine Loss: 359.6 W
Max Power & Breaker13.2 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 100m
| 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 | 1569.33 V (6538.89%) | 0.0 V | 2588.67 V (10786.11%) | 863133.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 941.6 V (3923.33%) | 0.0 V | 1553.2 V (6471.67%) | 517880.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 588.5 V (2452.08%) | 0.0 V | 970.75 V (4044.79%) | 323675.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 392.33 V (1634.72%) | 0.0 V | 647.17 V (2696.53%) | 215783.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 235.4 V (980.83%) | 0.0 V | 388.3 V (1617.92%) | 129470.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 147.12 V (613.02%) | 0.0 V | 242.69 V (1011.2%) | 80918.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 94.16 V (392.33%) | 0.0 V | 155.32 V (647.17%) | 51788.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 67.26 V (280.24%) | 0.0 V | 110.94 V (462.26%) | 36991.4 W | Drop High |
| 50 mm² | 151 A | 118 A | 47.08 V (196.17%) | 0.0 V | 77.66 V (323.58%) | 25894.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 33.63 V (140.12%) | 0.0 V | 55.47 V (231.13%) | 18495.7 W | Drop High |
| 95 mm² | 232 A | 181 A | 24.78 V (103.25%) | 0.0 V | 40.87 V (170.31%) | 13628.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 19.62 V (81.74%) | 4.4 V | 32.36 V (134.83%) | 10789.2 W | Drop High |
| 150 mm² | 309 A | 241 A | 15.69 V (65.39%) | 8.3 V | 25.89 V (107.86%) | 8631.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 12.72 V (53.02%) | 11.3 V | 20.99 V (87.45%) | 6998.4 W | Drop High |
| 240 mm² | 415 A | 324 A | 9.81 V (40.87%) | 14.2 V | 16.18 V (67.41%) | 5394.6 W | Drop High |
| 300 mm² | 477 A | 372 A | 7.85 V (32.69%) | 16.2 V | 12.94 V (53.93%) | 4315.7 W | Drop High |
| 400 mm² | 570 A | 445 A | 5.88 V (24.52%) | 18.1 V | 9.71 V (40.45%) | 3236.7 W | Drop High |
FAQ — 550 Amp Cable Size at 100 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 550A at 100 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 9× 400 mm² copper cable for 550A over 100m at 24V (voltage drop: 0.65V or 2.72%).
What is the power capacity of 550A at 24V?
At unity power factor, 550A at 24V supports 13.2 kW with a standard 600A circuit breaker.
Related Lengths & Currents (24V)
550A · 5m (24V)550A · 10m (24V)550A · 15m (24V)550A · 20m (24V)550A · 25m (24V)550A · 30m (24V)550A · 35m (24V)550A · 40m (24V)550A · 45m (24V)550A · 50m (24V)550A · 60m (24V)550A · 70m (24V)10A · 100m (24V)16A · 100m (24V)20A · 100m (24V)25A · 100m (24V)32A · 100m (24V)40A · 100m (24V)50A · 100m (24V)63A · 100m (24V)80A · 100m (24V)100A · 100m (24V)125A · 100m (24V)160A · 100m (24V)200A · 100m (24V)