90 Amp Cable Size at 300 Meters (230V Single-Phase (IEC Europe / UK / AU))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 90 A over 300 m (984.3 ft).
Copper Cable (≤3% Drop)185 mm²Drop: 6.25V (2.72%)
Aluminum Cable (≤3% Drop)300 mm²Drop: 6.35V (2.76%)
Voltage at Load223.8 VLine Loss: 562.2 W
Max Power & Breaker20.7 kW90A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 90A at 300m
| 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 | 770.4 V (334.96%) | 0.0 V | 1270.8 V (552.52%) | 69336.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 462.24 V (200.97%) | 0.0 V | 762.48 V (331.51%) | 41601.6 W | Drop High |
| 4 mm² | 32 A | 25 A | 288.9 V (125.61%) | 0.0 V | 476.55 V (207.2%) | 26001.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 192.6 V (83.74%) | 37.4 V | 317.7 V (138.13%) | 17334.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 115.56 V (50.24%) | 114.4 V | 190.62 V (82.88%) | 10400.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 72.22 V (31.4%) | 157.8 V | 119.14 V (51.8%) | 6500.2 W | Drop High |
| 25 mm² | 101 A | 78 A | 46.22 V (20.1%) | 183.8 V | 76.25 V (33.15%) | 4160.2 W | Drop High |
| 35 mm² | 125 A | 97 A | 33.02 V (14.36%) | 197.0 V | 54.46 V (23.68%) | 2971.5 W | Drop High |
| 50 mm² | 151 A | 118 A | 23.11 V (10.05%) | 206.9 V | 38.12 V (16.58%) | 2080.1 W | Drop High |
| 70 mm² | 192 A | 150 A | 16.51 V (7.18%) | 213.5 V | 27.23 V (11.84%) | 1485.8 W | Drop High |
| 95 mm² | 232 A | 181 A | 12.16 V (5.29%) | 217.8 V | 20.07 V (8.72%) | 1094.8 W | Drop High |
| 120 mm² | 269 A | 210 A | 9.63 V (4.19%) | 220.4 V | 15.88 V (6.91%) | 866.7 W | ~ ≤5% |
| 150 mm² | 309 A | 241 A | 7.7 V (3.35%) | 222.3 V | 12.71 V (5.53%) | 693.4 W | ~ ≤5% |
| 185 mm² | 353 A | 275 A | 6.25 V (2.72%) | 223.8 V | 10.3 V (4.48%) | 562.2 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 4.81 V (2.09%) | 225.2 V | 7.94 V (3.45%) | 433.3 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 3.85 V (1.67%) | 226.1 V | 6.35 V (2.76%) | 346.7 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 2.89 V (1.26%) | 227.1 V | 4.77 V (2.07%) | 260.0 W | ✓ OK (≤3%) |
FAQ — 90 Amp Cable Size at 300 Meters (230V Single-Phase (IEC Europe / UK / AU))
What mm² cable size is required for 90A at 300 meters (230V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 185 mm² copper cable for 90A over 300m at 230V (voltage drop: 6.25V or 2.72%).
What is the power capacity of 90A at 230V?
At unity power factor, 90A at 230V supports 20.7 kW with a standard 90A circuit breaker.
Related Lengths & Currents (230V)
90A · 5m (230V)90A · 10m (230V)90A · 15m (230V)90A · 20m (230V)90A · 25m (230V)90A · 30m (230V)90A · 35m (230V)90A · 40m (230V)90A · 45m (230V)90A · 50m (230V)90A · 60m (230V)90A · 70m (230V)10A · 300m (230V)16A · 300m (230V)20A · 300m (230V)25A · 300m (230V)32A · 300m (230V)40A · 300m (230V)50A · 300m (230V)63A · 300m (230V)80A · 300m (230V)100A · 300m (230V)125A · 300m (230V)160A · 300m (230V)200A · 300m (230V)