550 Amp Cable Size at 70 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 550 A over 70 m (229.7 ft).
Copper Cable (≤3% Drop)400 mm²Drop: 4.12V (1.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 6.8V (2.95%)
Voltage at Load225.9 VLine Loss: 2265.7 W
Max Power & Breaker126.5 kW600A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 550A at 70m
| 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 | 1098.53 V (477.62%) | 0.0 V | 1812.07 V (787.86%) | 604193.3 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 659.12 V (286.57%) | 0.0 V | 1087.24 V (472.71%) | 362516.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 411.95 V (179.11%) | 0.0 V | 679.52 V (295.45%) | 226572.5 W | Drop High |
| 6 mm² | 41 A | 32 A | 274.63 V (119.41%) | 0.0 V | 453.02 V (196.96%) | 151048.3 W | Drop High |
| 10 mm² | 57 A | 44 A | 164.78 V (71.64%) | 65.2 V | 271.81 V (118.18%) | 90629.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 102.99 V (44.78%) | 127.0 V | 169.88 V (73.86%) | 56643.1 W | Drop High |
| 25 mm² | 101 A | 78 A | 65.91 V (28.66%) | 164.1 V | 108.72 V (47.27%) | 36251.6 W | Drop High |
| 35 mm² | 125 A | 97 A | 47.08 V (20.47%) | 182.9 V | 77.66 V (33.77%) | 25894.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 32.96 V (14.33%) | 197.0 V | 54.36 V (23.64%) | 18125.8 W | Drop High |
| 70 mm² | 192 A | 150 A | 23.54 V (10.23%) | 206.5 V | 38.83 V (16.88%) | 12947.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 17.35 V (7.54%) | 212.7 V | 28.61 V (12.44%) | 9539.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 13.73 V (5.97%) | 216.3 V | 22.65 V (9.85%) | 7552.4 W | Drop High |
| 150 mm² | 309 A | 241 A | 10.99 V (4.78%) | 219.0 V | 18.12 V (7.88%) | 6041.9 W | Drop High |
| 185 mm² | 353 A | 275 A | 8.91 V (3.87%) | 221.1 V | 14.69 V (6.39%) | 4898.9 W | Drop High |
| 240 mm² | 415 A | 324 A | 6.87 V (2.99%) | 223.1 V | 11.33 V (4.92%) | 3776.2 W | Drop High |
| 300 mm² | 477 A | 372 A | 5.49 V (2.39%) | 224.5 V | 9.06 V (3.94%) | 3021.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 4.12 V (1.79%) | 225.9 V | 6.8 V (2.95%) | 2265.7 W | ✓ OK (≤3%) |
FAQ — 550 Amp Cable Size at 70 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 550A at 70 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 550A over 70m at 230V (voltage drop: 4.12V or 1.79%).
What is the power capacity of 550A at 230V?
At unity power factor, 550A at 230V supports 126.5 kW with a standard 600A circuit breaker.
Related Lengths & Currents (230V)
550A · 5m (230V)550A · 10m (230V)550A · 15m (230V)550A · 20m (230V)550A · 25m (230V)550A · 30m (230V)550A · 35m (230V)550A · 40m (230V)550A · 45m (230V)550A · 50m (230V)550A · 60m (230V)10A · 70m (230V)16A · 70m (230V)20A · 70m (230V)25A · 70m (230V)32A · 70m (230V)40A · 70m (230V)50A · 70m (230V)63A · 70m (230V)80A · 70m (230V)100A · 70m (230V)125A · 70m (230V)160A · 70m (230V)200A · 70m (230V)