⚡ 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 150 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 150 m (492.1 ft).

Copper Cable (≤3% Drop)300 mm²Drop: 8.8V (2.12%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 10.89V (2.62%)
Voltage at Load406.2 VLine Loss: 7242.6 W
Max Power & Breaker341.43 kW500A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 150m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A1760.63 V (424.25%)0.0 V2904.22 V (699.81%)1448512.5 WDrop High
2.5 mm²24 A18 A1056.38 V (254.55%)0.0 V1742.53 V (419.89%)869107.5 WDrop High
4 mm²32 A25 A660.24 V (159.09%)0.0 V1089.08 V (262.43%)543192.2 WDrop High
6 mm²41 A32 A440.16 V (106.06%)0.0 V726.05 V (174.95%)362128.1 WDrop High
10 mm²57 A44 A264.09 V (63.64%)150.9 V435.63 V (104.97%)217276.9 WDrop High
16 mm²76 A59 A165.06 V (39.77%)249.9 V272.27 V (65.61%)135798.0 WDrop High
25 mm²101 A78 A105.64 V (25.45%)309.4 V174.25 V (41.99%)86910.7 WDrop High
35 mm²125 A97 A75.46 V (18.18%)339.5 V124.47 V (29.99%)62079.1 WDrop High
50 mm²151 A118 A52.82 V (12.73%)362.2 V87.13 V (20.99%)43455.4 WDrop High
70 mm²192 A150 A37.73 V (9.09%)377.3 V62.23 V (15.0%)31039.6 WDrop High
95 mm²232 A181 A27.8 V (6.7%)387.2 V45.86 V (11.05%)22871.2 WDrop High
120 mm²269 A210 A22.01 V (5.3%)393.0 V36.3 V (8.75%)18106.4 WDrop High
150 mm²309 A241 A17.61 V (4.24%)397.4 V29.04 V (7.0%)14485.1 WDrop High
185 mm²353 A275 A14.28 V (3.44%)400.7 V23.55 V (5.67%)11744.7 WDrop High
240 mm²415 A324 A11.0 V (2.65%)404.0 V18.15 V (4.37%)9053.2 WDrop High
300 mm²477 A372 A8.8 V (2.12%)406.2 V14.52 V (3.5%)7242.6 W✓ OK (≤3%)
400 mm²570 A445 A6.6 V (1.59%)408.4 V10.89 V (2.62%)5431.9 W✓ OK (≤3%)

FAQ — 475 Amp Cable Size at 150 Meters (415V Three-Phase (UK / Australia Industrial))

What mm² cable size is required for 475A at 150 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 150m at 415V (voltage drop: 8.8V or 2.12%).

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.