⚡ 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 500 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 500 m (1640.4 ft).

Copper Cable (≤3% Drop)2× 400 mm²Drop: 11.01V (2.65%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 36.3V (8.75%)
Voltage at Load404.0 VLine Loss: 9053.2 W
Max Power & Breaker341.43 kW500A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 500m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A5868.77 V (1414.16%)0.0 V9680.72 V (2332.7%)4828375.0 WDrop High
2.5 mm²24 A18 A3521.26 V (848.5%)0.0 V5808.43 V (1399.62%)2897025.0 WDrop High
4 mm²32 A25 A2200.79 V (530.31%)0.0 V3630.27 V (874.76%)1810640.6 WDrop High
6 mm²41 A32 A1467.19 V (353.54%)0.0 V2420.18 V (583.18%)1207093.8 WDrop High
10 mm²57 A44 A880.31 V (212.12%)0.0 V1452.11 V (349.91%)724256.2 WDrop High
16 mm²76 A59 A550.2 V (132.58%)0.0 V907.57 V (218.69%)452660.2 WDrop High
25 mm²101 A78 A352.13 V (84.85%)62.9 V580.84 V (139.96%)289702.5 WDrop High
35 mm²125 A97 A251.52 V (60.61%)163.5 V414.89 V (99.97%)206930.4 WDrop High
50 mm²151 A118 A176.06 V (42.42%)238.9 V290.42 V (69.98%)144851.2 WDrop High
70 mm²192 A150 A125.76 V (30.3%)289.2 V207.44 V (49.99%)103465.2 WDrop High
95 mm²232 A181 A92.66 V (22.33%)322.3 V152.85 V (36.83%)76237.5 WDrop High
120 mm²269 A210 A73.36 V (17.68%)341.6 V121.01 V (29.16%)60354.7 WDrop High
150 mm²309 A241 A58.69 V (14.14%)356.3 V96.81 V (23.33%)48283.8 WDrop High
185 mm²353 A275 A47.58 V (11.47%)367.4 V78.49 V (18.91%)39149.0 WDrop High
240 mm²415 A324 A36.68 V (8.84%)378.3 V60.5 V (14.58%)30177.3 WDrop High
300 mm²477 A372 A29.34 V (7.07%)385.7 V48.4 V (11.66%)24141.9 WDrop High
400 mm²570 A445 A22.01 V (5.3%)393.0 V36.3 V (8.75%)18106.4 WDrop High

FAQ — 475 Amp Cable Size at 500 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 475A at 500 meters (415V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 475A over 500m at 415V (voltage drop: 11.01V or 2.65%).

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.