⚡ 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

500 Amp Cable Size at 5 Meters (415V Three-Phase (UK / Australia Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 500 A over 5 m (16.4 ft).

Copper Cable (≤3% Drop)400 mm²Drop: 0.23V (0.06%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.38V (0.09%)
Voltage at Load414.8 VLine Loss: 200.6 W
Max Power & Breaker359.4 kW500A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 500A at 5m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A61.78 V (14.89%)353.2 V101.9 V (24.55%)53500.0 WDrop High
2.5 mm²24 A18 A37.07 V (8.93%)377.9 V61.14 V (14.73%)32100.0 WDrop High
4 mm²32 A25 A23.17 V (5.58%)391.8 V38.21 V (9.21%)20062.5 WDrop High
6 mm²41 A32 A15.44 V (3.72%)399.6 V25.48 V (6.14%)13375.0 WDrop High
10 mm²57 A44 A9.27 V (2.23%)405.7 V15.29 V (3.68%)8025.0 WDrop High
16 mm²76 A59 A5.79 V (1.4%)409.2 V9.55 V (2.3%)5015.6 WDrop High
25 mm²101 A78 A3.71 V (0.89%)411.3 V6.11 V (1.47%)3210.0 WDrop High
35 mm²125 A97 A2.65 V (0.64%)412.4 V4.37 V (1.05%)2292.9 WDrop High
50 mm²151 A118 A1.85 V (0.45%)413.1 V3.06 V (0.74%)1605.0 WDrop High
70 mm²192 A150 A1.32 V (0.32%)413.7 V2.18 V (0.53%)1146.4 WDrop High
95 mm²232 A181 A0.98 V (0.24%)414.0 V1.61 V (0.39%)844.7 WDrop High
120 mm²269 A210 A0.77 V (0.19%)414.2 V1.27 V (0.31%)668.8 WDrop High
150 mm²309 A241 A0.62 V (0.15%)414.4 V1.02 V (0.25%)535.0 WDrop High
185 mm²353 A275 A0.5 V (0.12%)414.5 V0.83 V (0.2%)433.8 WDrop High
240 mm²415 A324 A0.39 V (0.09%)414.6 V0.64 V (0.15%)334.4 WDrop High
300 mm²477 A372 A0.31 V (0.07%)414.7 V0.51 V (0.12%)267.5 WDrop High
400 mm²570 A445 A0.23 V (0.06%)414.8 V0.38 V (0.09%)200.6 W✓ OK (≤3%)

FAQ — 500 Amp Cable Size at 5 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 500A at 5 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 400 mm² copper cable for 500A over 5m at 415V (voltage drop: 0.23V or 0.06%).

What is the power capacity of 500A at 415V?

At unity power factor, 500A at 415V supports 359.4 kW with a standard 500A circuit breaker.