900 Amp Cable Size at 500 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 900 A over 500 m (1640.4 ft).
Copper Cable (≤3% Drop)67× 400 mm²Drop: 0.72V (2.99%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 79.42V (330.94%)
Voltage at Load23.3 VLine Loss: 646.8 W
Max Power & Breaker21.6 kW1000A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 900A at 500m
| 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 | 12840.0 V (53500.0%) | 0.0 V | 21180.0 V (88250.0%) | 11556000.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 7704.0 V (32100.0%) | 0.0 V | 12708.0 V (52950.0%) | 6933600.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 4815.0 V (20062.5%) | 0.0 V | 7942.5 V (33093.75%) | 4333500.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 3210.0 V (13375.0%) | 0.0 V | 5295.0 V (22062.5%) | 2889000.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 1926.0 V (8025.0%) | 0.0 V | 3177.0 V (13237.5%) | 1733400.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 1203.75 V (5015.62%) | 0.0 V | 1985.62 V (8273.44%) | 1083375.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 770.4 V (3210.0%) | 0.0 V | 1270.8 V (5295.0%) | 693360.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 550.29 V (2292.86%) | 0.0 V | 907.71 V (3782.14%) | 495257.1 W | Drop High |
| 50 mm² | 151 A | 118 A | 385.2 V (1605.0%) | 0.0 V | 635.4 V (2647.5%) | 346680.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 275.14 V (1146.43%) | 0.0 V | 453.86 V (1891.07%) | 247628.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 202.74 V (844.74%) | 0.0 V | 334.42 V (1393.42%) | 182463.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 160.5 V (668.75%) | 0.0 V | 264.75 V (1103.12%) | 144450.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 128.4 V (535.0%) | 0.0 V | 211.8 V (882.5%) | 115560.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 104.11 V (433.78%) | 0.0 V | 171.73 V (715.54%) | 93697.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 80.25 V (334.37%) | 0.0 V | 132.37 V (551.56%) | 72225.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 64.2 V (267.5%) | 0.0 V | 105.9 V (441.25%) | 57780.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 48.15 V (200.62%) | 0.0 V | 79.42 V (330.94%) | 43335.0 W | Drop High |
FAQ — 900 Amp Cable Size at 500 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 900A at 500 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 67× 400 mm² copper cable for 900A over 500m at 24V (voltage drop: 0.72V or 2.99%).
What is the power capacity of 900A at 24V?
At unity power factor, 900A at 24V supports 21.6 kW with a standard 1000A circuit breaker.
Related Lengths & Currents (24V)
900A · 5m (24V)900A · 10m (24V)900A · 15m (24V)900A · 20m (24V)900A · 25m (24V)900A · 30m (24V)900A · 35m (24V)900A · 40m (24V)900A · 45m (24V)900A · 50m (24V)900A · 60m (24V)900A · 70m (24V)10A · 500m (24V)16A · 500m (24V)20A · 500m (24V)25A · 500m (24V)32A · 500m (24V)40A · 500m (24V)50A · 500m (24V)63A · 500m (24V)80A · 500m (24V)100A · 500m (24V)125A · 500m (24V)160A · 500m (24V)200A · 500m (24V)