32 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 32 A over 350 m (1148.3 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 0.6V (2.5%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 1.98V (8.24%)
Voltage at Load23.4 VLine Loss: 19.1 W
Max Power & Breaker0.77 kW32A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 32A 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 | 319.57 V (1331.56%) | 0.0 V | 527.15 V (2196.44%) | 10226.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 191.74 V (798.93%) | 0.0 V | 316.29 V (1317.87%) | 6135.8 W | Drop High |
| 4 mm² | 32 A | 25 A | 119.84 V (499.33%) | 0.0 V | 197.68 V (823.67%) | 3834.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 79.89 V (332.89%) | 0.0 V | 131.79 V (549.11%) | 2556.6 W | Drop High |
| 10 mm² | 57 A | 44 A | 47.94 V (199.73%) | 0.0 V | 79.07 V (329.47%) | 1534.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 29.96 V (124.83%) | 0.0 V | 49.42 V (205.92%) | 958.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 19.17 V (79.89%) | 4.8 V | 31.63 V (131.79%) | 613.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 13.7 V (57.07%) | 10.3 V | 22.59 V (94.13%) | 438.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 9.59 V (39.95%) | 14.4 V | 15.81 V (65.89%) | 306.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 6.85 V (28.53%) | 17.2 V | 11.3 V (47.07%) | 219.1 W | Drop High |
| 95 mm² | 232 A | 181 A | 5.05 V (21.02%) | 19.0 V | 8.32 V (34.68%) | 161.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 3.99 V (16.64%) | 20.0 V | 6.59 V (27.46%) | 127.8 W | Drop High |
| 150 mm² | 309 A | 241 A | 3.2 V (13.32%) | 20.8 V | 5.27 V (21.96%) | 102.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 2.59 V (10.8%) | 21.4 V | 4.27 V (17.81%) | 82.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 2.0 V (8.32%) | 22.0 V | 3.29 V (13.73%) | 63.9 W | Drop High |
| 300 mm² | 477 A | 372 A | 1.6 V (6.66%) | 22.4 V | 2.64 V (10.98%) | 51.1 W | Drop High |
| 400 mm² | 570 A | 445 A | 1.2 V (4.99%) | 22.8 V | 1.98 V (8.24%) | 38.3 W | ~ ≤5% |
FAQ — 32 Amp Cable Size at 350 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 32A at 350 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 32A over 350m at 24V (voltage drop: 0.6V or 2.5%).
What is the power capacity of 32A at 24V?
At unity power factor, 32A at 24V supports 0.77 kW with a standard 32A circuit breaker.
Related Lengths & Currents (24V)
32A · 5m (24V)32A · 10m (24V)32A · 15m (24V)32A · 20m (24V)32A · 25m (24V)32A · 30m (24V)32A · 35m (24V)32A · 40m (24V)32A · 45m (24V)32A · 50m (24V)32A · 60m (24V)32A · 70m (24V)10A · 350m (24V)16A · 350m (24V)20A · 350m (24V)25A · 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)