⚡ 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

30 Amp Cable Size at 150 Meters (415V Three-Phase (UK / Australia Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 30 A over 150 m (492.1 ft).

Copper Cable (≤3% Drop)16 mm²Drop: 10.42V (2.51%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 11.01V (2.65%)
Voltage at Load404.6 VLine Loss: 541.7 W
Max Power & Breaker21.56 kW30A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 30A at 150m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A111.2 V (26.79%)303.8 V183.42 V (44.2%)5778.0 WDrop High
2.5 mm²24 A18 A66.72 V (16.08%)348.3 V110.05 V (26.52%)3466.8 WDrop High
4 mm²32 A25 A41.7 V (10.05%)373.3 V68.78 V (16.57%)2166.8 WDrop High
6 mm²41 A32 A27.8 V (6.7%)387.2 V45.86 V (11.05%)1444.5 WDrop High
10 mm²57 A44 A16.68 V (4.02%)398.3 V27.51 V (6.63%)866.7 W~ ≤5%
16 mm²76 A59 A10.42 V (2.51%)404.6 V17.2 V (4.14%)541.7 W✓ OK (≤3%)
25 mm²101 A78 A6.67 V (1.61%)408.3 V11.01 V (2.65%)346.7 W✓ OK (≤3%)
35 mm²125 A97 A4.77 V (1.15%)410.2 V7.86 V (1.89%)247.6 W✓ OK (≤3%)
50 mm²151 A118 A3.34 V (0.8%)411.7 V5.5 V (1.33%)173.3 W✓ OK (≤3%)
70 mm²192 A150 A2.38 V (0.57%)412.6 V3.93 V (0.95%)123.8 W✓ OK (≤3%)
95 mm²232 A181 A1.76 V (0.42%)413.2 V2.9 V (0.7%)91.2 W✓ OK (≤3%)
120 mm²269 A210 A1.39 V (0.33%)413.6 V2.29 V (0.55%)72.2 W✓ OK (≤3%)
150 mm²309 A241 A1.11 V (0.27%)413.9 V1.83 V (0.44%)57.8 W✓ OK (≤3%)
185 mm²353 A275 A0.9 V (0.22%)414.1 V1.49 V (0.36%)46.8 W✓ OK (≤3%)
240 mm²415 A324 A0.69 V (0.17%)414.3 V1.15 V (0.28%)36.1 W✓ OK (≤3%)
300 mm²477 A372 A0.56 V (0.13%)414.4 V0.92 V (0.22%)28.9 W✓ OK (≤3%)
400 mm²570 A445 A0.42 V (0.1%)414.6 V0.69 V (0.17%)21.7 W✓ OK (≤3%)

FAQ — 30 Amp Cable Size at 150 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 30A at 150 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 16 mm² copper cable for 30A over 150m at 415V (voltage drop: 10.42V or 2.51%).

What is the power capacity of 30A at 415V?

At unity power factor, 30A at 415V supports 21.56 kW with a standard 30A circuit breaker.