⚡ 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 60 Meters (690V Three-Phase (Wind / Heavy Industrial))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 475 A over 60 m (196.9 ft).

Copper Cable (≤3% Drop)300 mm²Drop: 3.52V (0.51%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 4.36V (0.63%)
Voltage at Load686.5 VLine Loss: 2897.0 W
Max Power & Breaker567.68 kW500A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 60m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A704.25 V (102.07%)0.0 V1161.69 V (168.36%)579405.0 WDrop High
2.5 mm²24 A18 A422.55 V (61.24%)267.4 V697.01 V (101.02%)347643.0 WDrop High
4 mm²32 A25 A264.09 V (38.27%)425.9 V435.63 V (63.14%)217276.9 WDrop High
6 mm²41 A32 A176.06 V (25.52%)513.9 V290.42 V (42.09%)144851.2 WDrop High
10 mm²57 A44 A105.64 V (15.31%)584.4 V174.25 V (25.25%)86910.8 WDrop High
16 mm²76 A59 A66.02 V (9.57%)624.0 V108.91 V (15.78%)54319.2 WDrop High
25 mm²101 A78 A42.26 V (6.12%)647.7 V69.7 V (10.1%)34764.3 WDrop High
35 mm²125 A97 A30.18 V (4.37%)659.8 V49.79 V (7.22%)24831.6 WDrop High
50 mm²151 A118 A21.13 V (3.06%)668.9 V34.85 V (5.05%)17382.2 WDrop High
70 mm²192 A150 A15.09 V (2.19%)674.9 V24.89 V (3.61%)12415.8 WDrop High
95 mm²232 A181 A11.12 V (1.61%)678.9 V18.34 V (2.66%)9148.5 WDrop High
120 mm²269 A210 A8.8 V (1.28%)681.2 V14.52 V (2.1%)7242.6 WDrop High
150 mm²309 A241 A7.04 V (1.02%)683.0 V11.62 V (1.68%)5794.1 WDrop High
185 mm²353 A275 A5.71 V (0.83%)684.3 V9.42 V (1.37%)4697.9 WDrop High
240 mm²415 A324 A4.4 V (0.64%)685.6 V7.26 V (1.05%)3621.3 WDrop High
300 mm²477 A372 A3.52 V (0.51%)686.5 V5.81 V (0.84%)2897.0 W✓ OK (≤3%)
400 mm²570 A445 A2.64 V (0.38%)687.4 V4.36 V (0.63%)2172.8 W✓ OK (≤3%)

FAQ — 475 Amp Cable Size at 60 Meters (690V Three-Phase (Wind / Heavy Industrial))

What mm² cable size is required for 475A at 60 meters (690V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 300 mm² copper cable for 475A over 60m at 690V (voltage drop: 3.52V or 0.51%).

What is the power capacity of 475A at 690V?

At unity power factor, 475A at 690V supports 567.68 kW with a standard 500A circuit breaker.