450 Amp Cable Size at 350 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 450 A over 350 m (1148.3 ft).
Copper Cable (≤3% Drop)24× 400 mm²Drop: 0.7V (2.93%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 27.8V (115.83%)
Voltage at Load23.3 VLine Loss: 316.0 W
Max Power & Breaker10.8 kW450A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 450A at 350m
| 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 | 4494.0 V (18725.0%) | 0.0 V | 7413.0 V (30887.5%) | 2022300.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2696.4 V (11235.0%) | 0.0 V | 4447.8 V (18532.5%) | 1213380.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1685.25 V (7021.87%) | 0.0 V | 2779.87 V (11582.81%) | 758362.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 1123.5 V (4681.25%) | 0.0 V | 1853.25 V (7721.88%) | 505575.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 674.1 V (2808.75%) | 0.0 V | 1111.95 V (4633.12%) | 303345.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 421.31 V (1755.47%) | 0.0 V | 694.97 V (2895.7%) | 189590.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 269.64 V (1123.5%) | 0.0 V | 444.78 V (1853.25%) | 121338.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 192.6 V (802.5%) | 0.0 V | 317.7 V (1323.75%) | 86670.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 134.82 V (561.75%) | 0.0 V | 222.39 V (926.62%) | 60669.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 96.3 V (401.25%) | 0.0 V | 158.85 V (661.88%) | 43335.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 70.96 V (295.66%) | 0.0 V | 117.05 V (487.7%) | 31931.1 W | Drop High |
| 120 mm² | 269 A | 210 A | 56.17 V (234.06%) | 0.0 V | 92.66 V (386.09%) | 25278.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 44.94 V (187.25%) | 0.0 V | 74.13 V (308.87%) | 20223.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 36.44 V (151.82%) | 0.0 V | 60.11 V (250.44%) | 16397.0 W | Drop High |
| 240 mm² | 415 A | 324 A | 28.09 V (117.03%) | 0.0 V | 46.33 V (193.05%) | 12639.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 22.47 V (93.62%) | 1.5 V | 37.06 V (154.44%) | 10111.5 W | Drop High |
| 400 mm² | 570 A | 445 A | 16.85 V (70.22%) | 7.1 V | 27.8 V (115.83%) | 7583.6 W | Drop High |
FAQ — 450 Amp Cable Size at 350 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 450A at 350 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 24× 400 mm² copper cable for 450A over 350m at 24V (voltage drop: 0.7V or 2.93%).
What is the power capacity of 450A at 24V?
At unity power factor, 450A at 24V supports 10.8 kW with a standard 450A circuit breaker.
Related Lengths & Currents (24V)
450A · 5m (24V)450A · 10m (24V)450A · 15m (24V)450A · 20m (24V)450A · 25m (24V)450A · 30m (24V)450A · 35m (24V)450A · 40m (24V)450A · 45m (24V)450A · 50m (24V)450A · 60m (24V)450A · 70m (24V)10A · 350m (24V)16A · 350m (24V)20A · 350m (24V)25A · 350m (24V)32A · 350m (24V)40A · 350m (24V)50A · 350m (24V)63A · 350m (24V)80A · 350m (24V)100A · 350m (24V)125A · 350m (24V)160A · 350m (24V)200A · 350m (24V)