325 Amp Cable Size at 200 Meters (24V DC (Off-Grid Solar / Industrial Control))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 325 A over 200 m (656.2 ft).
Copper Cable (≤3% Drop)10× 400 mm²Drop: 0.7V (2.9%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 11.47V (47.8%)
Voltage at Load23.3 VLine Loss: 226.0 W
Max Power & Breaker7.8 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A at 200m
| 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 | 1854.67 V (7727.78%) | 0.0 V | 3059.33 V (12747.22%) | 602766.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1112.8 V (4636.67%) | 0.0 V | 1835.6 V (7648.33%) | 361660.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 695.5 V (2897.92%) | 0.0 V | 1147.25 V (4780.21%) | 226037.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 463.67 V (1931.94%) | 0.0 V | 764.83 V (3186.81%) | 150691.7 W | Drop High |
| 10 mm² | 57 A | 44 A | 278.2 V (1159.17%) | 0.0 V | 458.9 V (1912.08%) | 90415.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 173.87 V (724.48%) | 0.0 V | 286.81 V (1195.05%) | 56509.4 W | Drop High |
| 25 mm² | 101 A | 78 A | 111.28 V (463.67%) | 0.0 V | 183.56 V (764.83%) | 36166.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 79.49 V (331.19%) | 0.0 V | 131.11 V (546.31%) | 25832.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 55.64 V (231.83%) | 0.0 V | 91.78 V (382.42%) | 18083.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 39.74 V (165.6%) | 0.0 V | 65.56 V (273.15%) | 12916.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 29.28 V (122.02%) | 0.0 V | 48.31 V (201.27%) | 9517.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 23.18 V (96.6%) | 0.8 V | 38.24 V (159.34%) | 7534.6 W | Drop High |
| 150 mm² | 309 A | 241 A | 18.55 V (77.28%) | 5.5 V | 30.59 V (127.47%) | 6027.7 W | Drop High |
| 185 mm² | 353 A | 275 A | 15.04 V (62.66%) | 9.0 V | 24.81 V (103.36%) | 4887.3 W | Drop High |
| 240 mm² | 415 A | 324 A | 11.59 V (48.3%) | 12.4 V | 19.12 V (79.67%) | 3767.3 W | Drop High |
| 300 mm² | 477 A | 372 A | 9.27 V (38.64%) | 14.7 V | 15.3 V (63.74%) | 3013.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 6.95 V (28.98%) | 17.0 V | 11.47 V (47.8%) | 2260.4 W | Drop High |
FAQ — 325 Amp Cable Size at 200 Meters (24V DC (Off-Grid Solar / Industrial Control))
What mm² cable size is required for 325A at 200 meters (24V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 10× 400 mm² copper cable for 325A over 200m at 24V (voltage drop: 0.7V or 2.9%).
What is the power capacity of 325A at 24V?
At unity power factor, 325A at 24V supports 7.8 kW with a standard 350A circuit breaker.
Related Lengths & Currents (24V)
325A · 5m (24V)325A · 10m (24V)325A · 15m (24V)325A · 20m (24V)325A · 25m (24V)325A · 30m (24V)325A · 35m (24V)325A · 40m (24V)325A · 45m (24V)325A · 50m (24V)325A · 60m (24V)325A · 70m (24V)10A · 200m (24V)16A · 200m (24V)20A · 200m (24V)25A · 200m (24V)32A · 200m (24V)40A · 200m (24V)50A · 200m (24V)63A · 200m (24V)80A · 200m (24V)100A · 200m (24V)125A · 200m (24V)160A · 200m (24V)200A · 200m (24V)