35 Amp Cable Size at 50 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 35 A over 50 m (164.0 ft).
Copper Cable (≤3% Drop)120 mm²Drop: 0.62V (2.6%)
Aluminum Cable (≤3% Drop)185 mm²Drop: 0.67V (2.78%)
Voltage at Load23.4 VLine Loss: 21.8 W
Max Power & Breaker0.84 kW35A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 35A at 50m
| 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 | 49.93 V (208.06%) | 0.0 V | 82.37 V (343.19%) | 1747.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 29.96 V (124.83%) | 0.0 V | 49.42 V (205.92%) | 1048.6 W | Drop High |
| 4 mm² | 32 A | 25 A | 18.72 V (78.02%) | 5.3 V | 30.89 V (128.7%) | 655.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 12.48 V (52.01%) | 11.5 V | 20.59 V (85.8%) | 436.9 W | Drop High |
| 10 mm² | 57 A | 44 A | 7.49 V (31.21%) | 16.5 V | 12.35 V (51.48%) | 262.1 W | Drop High |
| 16 mm² | 76 A | 59 A | 4.68 V (19.51%) | 19.3 V | 7.72 V (32.17%) | 163.8 W | Drop High |
| 25 mm² | 101 A | 78 A | 3.0 V (12.48%) | 21.0 V | 4.94 V (20.59%) | 104.9 W | Drop High |
| 35 mm² | 125 A | 97 A | 2.14 V (8.92%) | 21.9 V | 3.53 V (14.71%) | 74.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 1.5 V (6.24%) | 22.5 V | 2.47 V (10.3%) | 52.4 W | Drop High |
| 70 mm² | 192 A | 150 A | 1.07 V (4.46%) | 22.9 V | 1.76 V (7.35%) | 37.4 W | ~ ≤5% |
| 95 mm² | 232 A | 181 A | 0.79 V (3.29%) | 23.2 V | 1.3 V (5.42%) | 27.6 W | ~ ≤5% |
| 120 mm² | 269 A | 210 A | 0.62 V (2.6%) | 23.4 V | 1.03 V (4.29%) | 21.8 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.5 V (2.08%) | 23.5 V | 0.82 V (3.43%) | 17.5 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.4 V (1.69%) | 23.6 V | 0.67 V (2.78%) | 14.2 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.31 V (1.3%) | 23.7 V | 0.51 V (2.14%) | 10.9 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.25 V (1.04%) | 23.8 V | 0.41 V (1.72%) | 8.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.19 V (0.78%) | 23.8 V | 0.31 V (1.29%) | 6.6 W | ✓ OK (≤3%) |
FAQ — 35 Amp Cable Size at 50 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 35A at 50 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 120 mm² copper cable for 35A over 50m at 24V (voltage drop: 0.62V or 2.6%).
What is the power capacity of 35A at 24V?
At unity power factor, 35A at 24V supports 0.84 kW with a standard 35A circuit breaker.
Related Lengths & Currents (24V)
35A · 5m (24V)35A · 10m (24V)35A · 15m (24V)35A · 20m (24V)35A · 25m (24V)35A · 30m (24V)35A · 35m (24V)35A · 40m (24V)35A · 45m (24V)35A · 60m (24V)35A · 70m (24V)10A · 50m (24V)16A · 50m (24V)20A · 50m (24V)25A · 50m (24V)32A · 50m (24V)40A · 50m (24V)50A · 50m (24V)63A · 50m (24V)80A · 50m (24V)100A · 50m (24V)125A · 50m (24V)160A · 50m (24V)200A · 50m (24V)