⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-24)
⚡ IEC 60364-5-52 · DIN VDE · NEK 400 · SS 436 40 00

175 Amp Cable Size at 350 Meters (415V Three-Phase (UK / Australia Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 175 A over 350 m (1148.3 ft).

Copper Cable (≤3% Drop)185 mm²Drop: 12.27V (2.96%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 9.36V (2.26%)
Voltage at Load402.7 VLine Loss: 3719.7 W
Max Power & Breaker125.79 kW175A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 175A at 350m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A1513.52 V (364.7%)0.0 V2496.61 V (601.59%)458762.5 WDrop High
2.5 mm²24 A18 A908.11 V (218.82%)0.0 V1497.96 V (360.96%)275257.5 WDrop High
4 mm²32 A25 A567.57 V (136.76%)0.0 V936.23 V (225.6%)172035.9 WDrop High
6 mm²41 A32 A378.38 V (91.18%)36.6 V624.15 V (150.4%)114690.6 WDrop High
10 mm²57 A44 A227.03 V (54.71%)188.0 V374.49 V (90.24%)68814.4 WDrop High
16 mm²76 A59 A141.89 V (34.19%)273.1 V234.06 V (56.4%)43009.0 WDrop High
25 mm²101 A78 A90.81 V (21.88%)324.2 V149.8 V (36.1%)27525.7 WDrop High
35 mm²125 A97 A64.87 V (15.63%)350.1 V107.0 V (25.78%)19661.2 WDrop High
50 mm²151 A118 A45.41 V (10.94%)369.6 V74.9 V (18.05%)13762.9 WDrop High
70 mm²192 A150 A32.43 V (7.82%)382.6 V53.5 V (12.89%)9830.6 WDrop High
95 mm²232 A181 A23.9 V (5.76%)391.1 V39.42 V (9.5%)7243.6 WDrop High
120 mm²269 A210 A18.92 V (4.56%)396.1 V31.21 V (7.52%)5734.5 W~ ≤5%
150 mm²309 A241 A15.14 V (3.65%)399.9 V24.97 V (6.02%)4587.6 W~ ≤5%
185 mm²353 A275 A12.27 V (2.96%)402.7 V20.24 V (4.88%)3719.7 W✓ OK (≤3%)
240 mm²415 A324 A9.46 V (2.28%)405.5 V15.6 V (3.76%)2867.3 W✓ OK (≤3%)
300 mm²477 A372 A7.57 V (1.82%)407.4 V12.48 V (3.01%)2293.8 W✓ OK (≤3%)
400 mm²570 A445 A5.68 V (1.37%)409.3 V9.36 V (2.26%)1720.4 W✓ OK (≤3%)

FAQ — 175 Amp Cable Size at 350 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 175A at 350 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 185 mm² copper cable for 175A over 350m at 415V (voltage drop: 12.27V or 2.96%).

What is the power capacity of 175A at 415V?

At unity power factor, 175A at 415V supports 125.79 kW with a standard 175A circuit breaker.