325 Amp Cable Size at 400 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 325 A over 400 m (1312.3 ft).
Copper Cable (≤3% Drop)3× 400 mm²Drop: 4.64V (2.02%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 22.95V (9.98%)
Voltage at Load225.4 VLine Loss: 1506.9 W
Max Power & Breaker74.75 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 325A at 400m
| 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 | 3709.33 V (1612.75%) | 0.0 V | 6118.67 V (2660.29%) | 1205533.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2225.6 V (967.65%) | 0.0 V | 3671.2 V (1596.17%) | 723320.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1391.0 V (604.78%) | 0.0 V | 2294.5 V (997.61%) | 452075.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 927.33 V (403.19%) | 0.0 V | 1529.67 V (665.07%) | 301383.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 556.4 V (241.91%) | 0.0 V | 917.8 V (399.04%) | 180830.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 347.75 V (151.2%) | 0.0 V | 573.62 V (249.4%) | 113018.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 222.56 V (96.77%) | 7.4 V | 367.12 V (159.62%) | 72332.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 158.97 V (69.12%) | 71.0 V | 262.23 V (114.01%) | 51665.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 111.28 V (48.38%) | 118.7 V | 183.56 V (79.81%) | 36166.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 79.49 V (34.56%) | 150.5 V | 131.11 V (57.01%) | 25832.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 58.57 V (25.46%) | 171.4 V | 96.61 V (42.0%) | 19034.7 W | Drop High |
| 120 mm² | 269 A | 210 A | 46.37 V (20.16%) | 183.6 V | 76.48 V (33.25%) | 15069.2 W | Drop High |
| 150 mm² | 309 A | 241 A | 37.09 V (16.13%) | 192.9 V | 61.19 V (26.6%) | 12055.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 30.08 V (13.08%) | 199.9 V | 49.61 V (21.57%) | 9774.6 W | Drop High |
| 240 mm² | 415 A | 324 A | 23.18 V (10.08%) | 206.8 V | 38.24 V (16.63%) | 7534.6 W | Drop High |
| 300 mm² | 477 A | 372 A | 18.55 V (8.06%) | 211.5 V | 30.59 V (13.3%) | 6027.7 W | Drop High |
| 400 mm² | 570 A | 445 A | 13.91 V (6.05%) | 216.1 V | 22.95 V (9.98%) | 4520.7 W | Drop High |
FAQ — 325 Amp Cable Size at 400 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 325A at 400 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 3× 400 mm² copper cable for 325A over 400m at 230V (voltage drop: 4.64V or 2.02%).
What is the power capacity of 325A at 230V?
At unity power factor, 325A at 230V supports 74.75 kW with a standard 350A circuit breaker.
Related Lengths & Currents (230V)
325A · 5m (230V)325A · 10m (230V)325A · 15m (230V)325A · 20m (230V)325A · 25m (230V)325A · 30m (230V)325A · 35m (230V)325A · 40m (230V)325A · 45m (230V)325A · 50m (230V)325A · 60m (230V)325A · 70m (230V)10A · 400m (230V)16A · 400m (230V)20A · 400m (230V)25A · 400m (230V)32A · 400m (230V)40A · 400m (230V)50A · 400m (230V)63A · 400m (230V)80A · 400m (230V)100A · 400m (230V)125A · 400m (230V)160A · 400m (230V)200A · 400m (230V)