⚡ 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

150 Amp Cable Size at 35 Meters (690V Three-Phase (Wind / Heavy Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 150 A over 35 m (114.8 ft).

Copper Cable (≤3% Drop)50 mm²Drop: 3.89V (0.56%)
Aluminum Cable (≤3% Drop)70 mm²Drop: 4.59V (0.66%)
Voltage at Load686.1 VLine Loss: 1011.1 W
Max Power & Breaker179.27 kW150A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 150A at 35m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A129.73 V (18.8%)560.3 V213.99 V (31.01%)33705.0 WDrop High
2.5 mm²24 A18 A77.84 V (11.28%)612.2 V128.4 V (18.61%)20223.0 WDrop High
4 mm²32 A25 A48.65 V (7.05%)641.4 V80.25 V (11.63%)12639.4 WDrop High
6 mm²41 A32 A32.43 V (4.7%)657.6 V53.5 V (7.75%)8426.2 WDrop High
10 mm²57 A44 A19.46 V (2.82%)670.5 V32.1 V (4.65%)5055.8 WDrop High
16 mm²76 A59 A12.16 V (1.76%)677.8 V20.06 V (2.91%)3159.8 WDrop High
25 mm²101 A78 A7.78 V (1.13%)682.2 V12.84 V (1.86%)2022.3 WDrop High
35 mm²125 A97 A5.56 V (0.81%)684.4 V9.17 V (1.33%)1444.5 WDrop High
50 mm²151 A118 A3.89 V (0.56%)686.1 V6.42 V (0.93%)1011.1 W✓ OK (≤3%)
70 mm²192 A150 A2.78 V (0.4%)687.2 V4.59 V (0.66%)722.2 W✓ OK (≤3%)
95 mm²232 A181 A2.05 V (0.3%)688.0 V3.38 V (0.49%)532.2 W✓ OK (≤3%)
120 mm²269 A210 A1.62 V (0.24%)688.4 V2.67 V (0.39%)421.3 W✓ OK (≤3%)
150 mm²309 A241 A1.3 V (0.19%)688.7 V2.14 V (0.31%)337.1 W✓ OK (≤3%)
185 mm²353 A275 A1.05 V (0.15%)688.9 V1.74 V (0.25%)273.3 W✓ OK (≤3%)
240 mm²415 A324 A0.81 V (0.12%)689.2 V1.34 V (0.19%)210.7 W✓ OK (≤3%)
300 mm²477 A372 A0.65 V (0.09%)689.4 V1.07 V (0.16%)168.5 W✓ OK (≤3%)
400 mm²570 A445 A0.49 V (0.07%)689.5 V0.8 V (0.12%)126.4 W✓ OK (≤3%)

FAQ — 150 Amp Cable Size at 35 Meters (690V Three-Phase (Wind / Heavy Industrial))

What mm² cable size is required for 150A at 35 meters (690V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 50 mm² copper cable for 150A over 35m at 690V (voltage drop: 3.89V or 0.56%).

What is the power capacity of 150A at 690V?

At unity power factor, 150A at 690V supports 179.27 kW with a standard 150A circuit breaker.