800 Amp Cable Size at 25 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 800 A over 25 m (82.0 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 1.07V (0.47%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 3.53V (1.53%)
Voltage at Load228.9 VLine Loss: 856.0 W
Max Power & Breaker184.0 kW800A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 800A at 25m
| 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 | 570.67 V (248.12%) | 0.0 V | 941.33 V (409.28%) | 456533.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 342.4 V (148.87%) | 0.0 V | 564.8 V (245.57%) | 273920.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 214.0 V (93.04%) | 16.0 V | 353.0 V (153.48%) | 171200.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 142.67 V (62.03%) | 87.3 V | 235.33 V (102.32%) | 114133.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 85.6 V (37.22%) | 144.4 V | 141.2 V (61.39%) | 68480.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 53.5 V (23.26%) | 176.5 V | 88.25 V (38.37%) | 42800.0 W | Drop High |
| 25 mm² | 101 A | 78 A | 34.24 V (14.89%) | 195.8 V | 56.48 V (24.56%) | 27392.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 24.46 V (10.63%) | 205.5 V | 40.34 V (17.54%) | 19565.7 W | Drop High |
| 50 mm² | 151 A | 118 A | 17.12 V (7.44%) | 212.9 V | 28.24 V (12.28%) | 13696.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 12.23 V (5.32%) | 217.8 V | 20.17 V (8.77%) | 9782.9 W | Drop High |
| 95 mm² | 232 A | 181 A | 9.01 V (3.92%) | 221.0 V | 14.86 V (6.46%) | 7208.4 W | Drop High |
| 120 mm² | 269 A | 210 A | 7.13 V (3.1%) | 222.9 V | 11.77 V (5.12%) | 5706.7 W | Drop High |
| 150 mm² | 309 A | 241 A | 5.71 V (2.48%) | 224.3 V | 9.41 V (4.09%) | 4565.3 W | Drop High |
| 185 mm² | 353 A | 275 A | 4.63 V (2.01%) | 225.4 V | 7.63 V (3.32%) | 3701.6 W | Drop High |
| 240 mm² | 415 A | 324 A | 3.57 V (1.55%) | 226.4 V | 5.88 V (2.56%) | 2853.3 W | Drop High |
| 300 mm² | 477 A | 372 A | 2.85 V (1.24%) | 227.1 V | 4.71 V (2.05%) | 2282.7 W | Drop High |
| 400 mm² | 570 A | 445 A | 2.14 V (0.93%) | 227.9 V | 3.53 V (1.53%) | 1712.0 W | Drop High |
FAQ — 800 Amp Cable Size at 25 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 800A at 25 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 800A over 25m at 230V (voltage drop: 1.07V or 0.47%).
What is the power capacity of 800A at 230V?
At unity power factor, 800A at 230V supports 184.0 kW with a standard 800A circuit breaker.
Related Lengths & Currents (230V)
800A · 5m (230V)800A · 10m (230V)800A · 15m (230V)800A · 20m (230V)800A · 30m (230V)800A · 35m (230V)800A · 40m (230V)800A · 45m (230V)800A · 50m (230V)800A · 60m (230V)800A · 70m (230V)10A · 25m (230V)16A · 25m (230V)20A · 25m (230V)25A · 25m (230V)32A · 25m (230V)40A · 25m (230V)50A · 25m (230V)63A · 25m (230V)80A · 25m (230V)100A · 25m (230V)125A · 25m (230V)160A · 25m (230V)200A · 25m (230V)