350 Amp Cable Size at 30 Meters (415V Three-Phase (UK / Australia Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 350 A over 30 m (98.4 ft).
Copper Cable (≤3% Drop)185 mm²Drop: 2.1V (0.51%)
Aluminum Cable (≤3% Drop)300 mm²Drop: 2.14V (0.52%)
Voltage at Load412.9 VLine Loss: 1275.3 W
Max Power & Breaker251.58 kW350A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 350A at 30m
| 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 | 259.46 V (62.52%) | 155.5 V | 427.99 V (103.13%) | 157290.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 155.68 V (37.51%) | 259.3 V | 256.79 V (61.88%) | 94374.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 97.3 V (23.45%) | 317.7 V | 160.5 V (38.67%) | 58983.8 W | Drop High |
| 6 mm² | 41 A | 32 A | 64.87 V (15.63%) | 350.1 V | 107.0 V (25.78%) | 39322.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 38.92 V (9.38%) | 376.1 V | 64.2 V (15.47%) | 23593.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 24.32 V (5.86%) | 390.7 V | 40.12 V (9.67%) | 14745.9 W | Drop High |
| 25 mm² | 101 A | 78 A | 15.57 V (3.75%) | 399.4 V | 25.68 V (6.19%) | 9437.4 W | Drop High |
| 35 mm² | 125 A | 97 A | 11.12 V (2.68%) | 403.9 V | 18.34 V (4.42%) | 6741.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 7.78 V (1.88%) | 407.2 V | 12.84 V (3.09%) | 4718.7 W | Drop High |
| 70 mm² | 192 A | 150 A | 5.56 V (1.34%) | 409.4 V | 9.17 V (2.21%) | 3370.5 W | Drop High |
| 95 mm² | 232 A | 181 A | 4.1 V (0.99%) | 410.9 V | 6.76 V (1.63%) | 2483.5 W | Drop High |
| 120 mm² | 269 A | 210 A | 3.24 V (0.78%) | 411.8 V | 5.35 V (1.29%) | 1966.1 W | Drop High |
| 150 mm² | 309 A | 241 A | 2.59 V (0.63%) | 412.4 V | 4.28 V (1.03%) | 1572.9 W | Drop High |
| 185 mm² | 353 A | 275 A | 2.1 V (0.51%) | 412.9 V | 3.47 V (0.84%) | 1275.3 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 1.62 V (0.39%) | 413.4 V | 2.67 V (0.64%) | 983.1 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 1.3 V (0.31%) | 413.7 V | 2.14 V (0.52%) | 786.5 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.97 V (0.23%) | 414.0 V | 1.6 V (0.39%) | 589.8 W | ✓ OK (≤3%) |
FAQ — 350 Amp Cable Size at 30 Meters (415V Three-Phase (UK / Australia Industrial))
What mm² cable size is required for 350A at 30 meters (415V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 185 mm² copper cable for 350A over 30m at 415V (voltage drop: 2.1V or 0.51%).
What is the power capacity of 350A at 415V?
At unity power factor, 350A at 415V supports 251.58 kW with a standard 350A circuit breaker.
Related Lengths & Currents (415V)
350A · 5m (415V)350A · 10m (415V)350A · 15m (415V)350A · 20m (415V)350A · 25m (415V)350A · 35m (415V)350A · 40m (415V)350A · 45m (415V)350A · 50m (415V)350A · 60m (415V)350A · 70m (415V)10A · 30m (415V)16A · 30m (415V)20A · 30m (415V)25A · 30m (415V)32A · 30m (415V)40A · 30m (415V)50A · 30m (415V)63A · 30m (415V)80A · 30m (415V)100A · 30m (415V)125A · 30m (415V)160A · 30m (415V)200A · 30m (415V)