350 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 350 A over 50 m (164.0 ft).
Copper Cable (≤3% Drop)3× 400 mm²Drop: 0.62V (2.6%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.09V (12.87%)
Voltage at Load23.4 VLine Loss: 218.5 W
Max Power & Breaker8.4 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 350A 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 | 499.33 V (2080.56%) | 0.0 V | 823.67 V (3431.94%) | 174766.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 299.6 V (1248.33%) | 0.0 V | 494.2 V (2059.17%) | 104860.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 187.25 V (780.21%) | 0.0 V | 308.88 V (1286.98%) | 65537.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 124.83 V (520.14%) | 0.0 V | 205.92 V (857.99%) | 43691.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 74.9 V (312.08%) | 0.0 V | 123.55 V (514.79%) | 26215.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 46.81 V (195.05%) | 0.0 V | 77.22 V (321.74%) | 16384.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 29.96 V (124.83%) | 0.0 V | 49.42 V (205.92%) | 10486.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 21.4 V (89.17%) | 2.6 V | 35.3 V (147.08%) | 7490.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 14.98 V (62.42%) | 9.0 V | 24.71 V (102.96%) | 5243.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 10.7 V (44.58%) | 13.3 V | 17.65 V (73.54%) | 3745.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 7.88 V (32.85%) | 16.1 V | 13.01 V (54.19%) | 2759.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 6.24 V (26.01%) | 17.8 V | 10.3 V (42.9%) | 2184.6 W | Drop High |
| 150 mm² | 309 A | 241 A | 4.99 V (20.81%) | 19.0 V | 8.24 V (34.32%) | 1747.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 4.05 V (16.87%) | 20.0 V | 6.68 V (27.83%) | 1417.0 W | Drop High |
| 240 mm² | 415 A | 324 A | 3.12 V (13.0%) | 20.9 V | 5.15 V (21.45%) | 1092.3 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.5 V (10.4%) | 21.5 V | 4.12 V (17.16%) | 873.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 1.87 V (7.8%) | 22.1 V | 3.09 V (12.87%) | 655.4 W | Drop High |
FAQ — 350 Amp Cable Size at 50 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 350A at 50 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 3× 400 mm² copper cable for 350A over 50m at 24V (voltage drop: 0.62V or 2.6%).
What is the power capacity of 350A at 24V?
At unity power factor, 350A at 24V supports 8.4 kW with a standard 350A circuit breaker.
Related Lengths & Currents (24V)
350A · 5m (24V)350A · 10m (24V)350A · 15m (24V)350A · 20m (24V)350A · 25m (24V)350A · 30m (24V)350A · 35m (24V)350A · 40m (24V)350A · 45m (24V)350A · 60m (24V)350A · 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)