⚡ 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 200 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 200 m (656.2 ft).

Copper Cable (≤3% Drop)25 mm²Drop: 8.9V (2.14%)
Aluminum Cable (≤3% Drop)35 mm²Drop: 10.48V (2.53%)
Voltage at Load406.1 VLine Loss: 462.2 W
Max Power & Breaker21.56 kW30A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 30A at 200m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A148.26 V (35.73%)266.7 V244.57 V (58.93%)7704.0 WDrop High
2.5 mm²24 A18 A88.96 V (21.44%)326.0 V146.74 V (35.36%)4622.4 WDrop High
4 mm²32 A25 A55.6 V (13.4%)359.4 V91.71 V (22.1%)2889.0 WDrop High
6 mm²41 A32 A37.07 V (8.93%)377.9 V61.14 V (14.73%)1926.0 WDrop High
10 mm²57 A44 A22.24 V (5.36%)392.8 V36.68 V (8.84%)1155.6 WDrop High
16 mm²76 A59 A13.9 V (3.35%)401.1 V22.93 V (5.52%)722.2 W~ ≤5%
25 mm²101 A78 A8.9 V (2.14%)406.1 V14.67 V (3.54%)462.2 W✓ OK (≤3%)
35 mm²125 A97 A6.35 V (1.53%)408.6 V10.48 V (2.53%)330.2 W✓ OK (≤3%)
50 mm²151 A118 A4.45 V (1.07%)410.6 V7.34 V (1.77%)231.1 W✓ OK (≤3%)
70 mm²192 A150 A3.18 V (0.77%)411.8 V5.24 V (1.26%)165.1 W✓ OK (≤3%)
95 mm²232 A181 A2.34 V (0.56%)412.7 V3.86 V (0.93%)121.6 W✓ OK (≤3%)
120 mm²269 A210 A1.85 V (0.45%)413.1 V3.06 V (0.74%)96.3 W✓ OK (≤3%)
150 mm²309 A241 A1.48 V (0.36%)413.5 V2.45 V (0.59%)77.0 W✓ OK (≤3%)
185 mm²353 A275 A1.2 V (0.29%)413.8 V1.98 V (0.48%)62.5 W✓ OK (≤3%)
240 mm²415 A324 A0.93 V (0.22%)414.1 V1.53 V (0.37%)48.1 W✓ OK (≤3%)
300 mm²477 A372 A0.74 V (0.18%)414.3 V1.22 V (0.29%)38.5 W✓ OK (≤3%)
400 mm²570 A445 A0.56 V (0.13%)414.4 V0.92 V (0.22%)28.9 W✓ OK (≤3%)

FAQ — 30 Amp Cable Size at 200 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 30A at 200 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 25 mm² copper cable for 30A over 200m at 415V (voltage drop: 8.9V or 2.14%).

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.