400 Amp Cable Size at 500 Meters (400V Three-Phase (IEC European Grid))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 400 A over 500 m (1640.4 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 9.27V (2.31%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 30.57V (7.64%)
Voltage at Load390.7 VLine Loss: 6420.0 W
Max Power & Breaker277.13 kW400A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 400A at 500m
| 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 | 4942.12 V (1235.53%) | 0.0 V | 8152.19 V (2038.05%) | 3424000.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 2965.27 V (741.32%) | 0.0 V | 4891.31 V (1222.83%) | 2054400.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1853.29 V (463.32%) | 0.0 V | 3057.07 V (764.27%) | 1284000.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1235.53 V (308.88%) | 0.0 V | 2038.05 V (509.51%) | 856000.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 741.32 V (185.33%) | 0.0 V | 1222.83 V (305.71%) | 513600.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 463.32 V (115.83%) | 0.0 V | 764.27 V (191.07%) | 321000.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 296.53 V (74.13%) | 103.5 V | 489.13 V (122.28%) | 205440.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 211.81 V (52.95%) | 188.2 V | 349.38 V (87.34%) | 146742.9 W | Drop High |
| 50 mm² | 151 A | 118 A | 148.26 V (37.07%) | 251.7 V | 244.57 V (61.14%) | 102720.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 105.9 V (26.48%) | 294.1 V | 174.69 V (43.67%) | 73371.4 W | Drop High |
| 95 mm² | 232 A | 181 A | 78.03 V (19.51%) | 322.0 V | 128.72 V (32.18%) | 54063.2 W | Drop High |
| 120 mm² | 269 A | 210 A | 61.78 V (15.44%) | 338.2 V | 101.9 V (25.48%) | 42800.0 W | Drop High |
| 150 mm² | 309 A | 241 A | 49.42 V (12.36%) | 350.6 V | 81.52 V (20.38%) | 34240.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 40.07 V (10.02%) | 359.9 V | 66.1 V (16.52%) | 27762.2 W | Drop High |
| 240 mm² | 415 A | 324 A | 30.89 V (7.72%) | 369.1 V | 50.95 V (12.74%) | 21400.0 W | Drop High |
| 300 mm² | 477 A | 372 A | 24.71 V (6.18%) | 375.3 V | 40.76 V (10.19%) | 17120.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 18.53 V (4.63%) | 381.5 V | 30.57 V (7.64%) | 12840.0 W | ~ ≤5% |
FAQ — 400 Amp Cable Size at 500 Meters (400V Three-Phase (IEC European Grid))
What mm² cable size is required for 400A at 500 meters (400V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 400A over 500m at 400V (voltage drop: 9.27V or 2.31%).
What is the power capacity of 400A at 400V?
At unity power factor, 400A at 400V supports 277.13 kW with a standard 400A circuit breaker.
Related Lengths & Currents (400V)
400A · 5m (400V)400A · 10m (400V)400A · 15m (400V)400A · 20m (400V)400A · 25m (400V)400A · 30m (400V)400A · 35m (400V)400A · 40m (400V)400A · 45m (400V)400A · 50m (400V)400A · 60m (400V)400A · 70m (400V)10A · 500m (400V)16A · 500m (400V)20A · 500m (400V)25A · 500m (400V)32A · 500m (400V)40A · 500m (400V)50A · 500m (400V)63A · 500m (400V)80A · 500m (400V)100A · 500m (400V)125A · 500m (400V)160A · 500m (400V)200A · 500m (400V)