⚡ 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 200 Meters (400V Three-Phase (IEC European Grid))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 475 A over 200 m (656.2 ft).

Copper Cable (≤3% Drop)300 mm²Drop: 11.74V (2.93%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 14.52V (3.63%)
Voltage at Load388.3 VLine Loss: 9656.8 W
Max Power & Breaker329.09 kW500A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 200m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A2347.51 V (586.88%)0.0 V3872.29 V (968.07%)1931350.0 WDrop High
2.5 mm²24 A18 A1408.5 V (352.13%)0.0 V2323.37 V (580.84%)1158810.0 WDrop High
4 mm²32 A25 A880.31 V (220.08%)0.0 V1452.11 V (363.03%)724256.2 WDrop High
6 mm²41 A32 A586.88 V (146.72%)0.0 V968.07 V (242.02%)482837.5 WDrop High
10 mm²57 A44 A352.13 V (88.03%)47.9 V580.84 V (145.21%)289702.5 WDrop High
16 mm²76 A59 A220.08 V (55.02%)179.9 V363.03 V (90.76%)181064.1 WDrop High
25 mm²101 A78 A140.85 V (35.21%)259.1 V232.34 V (58.08%)115881.0 WDrop High
35 mm²125 A97 A100.61 V (25.15%)299.4 V165.96 V (41.49%)82772.1 WDrop High
50 mm²151 A118 A70.43 V (17.61%)329.6 V116.17 V (29.04%)57940.5 WDrop High
70 mm²192 A150 A50.3 V (12.58%)349.7 V82.98 V (20.74%)41386.1 WDrop High
95 mm²232 A181 A37.07 V (9.27%)362.9 V61.14 V (15.29%)30495.0 WDrop High
120 mm²269 A210 A29.34 V (7.34%)370.7 V48.4 V (12.1%)24141.9 WDrop High
150 mm²309 A241 A23.48 V (5.87%)376.5 V38.72 V (9.68%)19313.5 WDrop High
185 mm²353 A275 A19.03 V (4.76%)381.0 V31.4 V (7.85%)15659.6 WDrop High
240 mm²415 A324 A14.67 V (3.67%)385.3 V24.2 V (6.05%)12070.9 WDrop High
300 mm²477 A372 A11.74 V (2.93%)388.3 V19.36 V (4.84%)9656.8 W✓ OK (≤3%)
400 mm²570 A445 A8.8 V (2.2%)391.2 V14.52 V (3.63%)7242.6 W✓ OK (≤3%)

FAQ — 475 Amp Cable Size at 200 Meters (400V Three-Phase (IEC European Grid))

What mm² cable size is required for 475A at 200 meters (400V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 475A over 200m at 400V (voltage drop: 11.74V or 2.93%).

What is the power capacity of 475A at 400V?

At unity power factor, 475A at 400V supports 329.09 kW with a standard 500A circuit breaker.