⚡ 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

475 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 475 A over 5 m (16.4 ft).

Copper Cable (≤3% Drop)300 mm²Drop: 0.29V (0.07%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 0.36V (0.09%)
Voltage at Load414.7 VLine Loss: 241.4 W
Max Power & Breaker341.43 kW500A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 5m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A58.69 V (14.14%)356.3 V96.81 V (23.33%)48283.8 WDrop High
2.5 mm²24 A18 A35.21 V (8.48%)379.8 V58.08 V (14.0%)28970.2 WDrop High
4 mm²32 A25 A22.01 V (5.3%)393.0 V36.3 V (8.75%)18106.4 WDrop High
6 mm²41 A32 A14.67 V (3.54%)400.3 V24.2 V (5.83%)12070.9 WDrop High
10 mm²57 A44 A8.8 V (2.12%)406.2 V14.52 V (3.5%)7242.6 WDrop High
16 mm²76 A59 A5.5 V (1.33%)409.5 V9.08 V (2.19%)4526.6 WDrop High
25 mm²101 A78 A3.52 V (0.85%)411.5 V5.81 V (1.4%)2897.0 WDrop High
35 mm²125 A97 A2.52 V (0.61%)412.5 V4.15 V (1.0%)2069.3 WDrop High
50 mm²151 A118 A1.76 V (0.42%)413.2 V2.9 V (0.7%)1448.5 WDrop High
70 mm²192 A150 A1.26 V (0.3%)413.7 V2.07 V (0.5%)1034.7 WDrop High
95 mm²232 A181 A0.93 V (0.22%)414.1 V1.53 V (0.37%)762.4 WDrop High
120 mm²269 A210 A0.73 V (0.18%)414.3 V1.21 V (0.29%)603.5 WDrop High
150 mm²309 A241 A0.59 V (0.14%)414.4 V0.97 V (0.23%)482.8 WDrop High
185 mm²353 A275 A0.48 V (0.11%)414.5 V0.78 V (0.19%)391.5 WDrop High
240 mm²415 A324 A0.37 V (0.09%)414.6 V0.61 V (0.15%)301.8 WDrop High
300 mm²477 A372 A0.29 V (0.07%)414.7 V0.48 V (0.12%)241.4 W✓ OK (≤3%)
400 mm²570 A445 A0.22 V (0.05%)414.8 V0.36 V (0.09%)181.1 W✓ OK (≤3%)

FAQ — 475 Amp Cable Size at 5 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 475A at 5 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 475A over 5m at 415V (voltage drop: 0.29V or 0.07%).

What is the power capacity of 475A at 415V?

At unity power factor, 475A at 415V supports 341.43 kW with a standard 500A circuit breaker.