800 Amp Cable Size at 35 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 800 A over 35 m (114.8 ft).
Copper Cable (≤3% Drop)5× 400 mm²Drop: 0.6V (2.5%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 4.94V (20.59%)
Voltage at Load23.4 VLine Loss: 479.4 W
Max Power & Breaker19.2 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 800A at 35m
| 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 | 798.93 V (3328.89%) | 0.0 V | 1317.87 V (5491.11%) | 639146.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 479.36 V (1997.33%) | 0.0 V | 790.72 V (3294.67%) | 383488.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 299.6 V (1248.33%) | 0.0 V | 494.2 V (2059.17%) | 239680.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 199.73 V (832.22%) | 0.0 V | 329.47 V (1372.78%) | 159786.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 119.84 V (499.33%) | 0.0 V | 197.68 V (823.67%) | 95872.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 74.9 V (312.08%) | 0.0 V | 123.55 V (514.79%) | 59920.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 47.94 V (199.73%) | 0.0 V | 79.07 V (329.47%) | 38348.8 W | Drop High |
| 35 mm² | 125 A | 97 A | 34.24 V (142.67%) | 0.0 V | 56.48 V (235.33%) | 27392.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 23.97 V (99.87%) | 0.0 V | 39.54 V (164.73%) | 19174.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 17.12 V (71.33%) | 6.9 V | 28.24 V (117.67%) | 13696.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 12.61 V (52.56%) | 11.4 V | 20.81 V (86.7%) | 10091.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 9.99 V (41.61%) | 14.0 V | 16.47 V (68.64%) | 7989.3 W | Drop High |
| 150 mm² | 309 A | 241 A | 7.99 V (33.29%) | 16.0 V | 13.18 V (54.91%) | 6391.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 6.48 V (26.99%) | 17.5 V | 10.69 V (44.52%) | 5182.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 4.99 V (20.81%) | 19.0 V | 8.24 V (34.32%) | 3994.7 W | Drop High |
| 300 mm² | 477 A | 372 A | 3.99 V (16.64%) | 20.0 V | 6.59 V (27.46%) | 3195.7 W | Drop High |
| 400 mm² | 570 A | 445 A | 3.0 V (12.48%) | 21.0 V | 4.94 V (20.59%) | 2396.8 W | Drop High |
FAQ — 800 Amp Cable Size at 35 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 800A at 35 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 5× 400 mm² copper cable for 800A over 35m at 24V (voltage drop: 0.6V or 2.5%).
What is the power capacity of 800A at 24V?
At unity power factor, 800A at 24V supports 19.2 kW with a standard 800A circuit breaker.
Related Lengths & Currents (24V)
800A · 5m (24V)800A · 10m (24V)800A · 15m (24V)800A · 20m (24V)800A · 25m (24V)800A · 30m (24V)800A · 40m (24V)800A · 45m (24V)800A · 50m (24V)800A · 60m (24V)800A · 70m (24V)10A · 35m (24V)16A · 35m (24V)20A · 35m (24V)25A · 35m (24V)32A · 35m (24V)40A · 35m (24V)50A · 35m (24V)63A · 35m (24V)80A · 35m (24V)100A · 35m (24V)125A · 35m (24V)160A · 35m (24V)200A · 35m (24V)