⚡ 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 175 Meters (24V DC (Off-Grid Solar / Industrial Control))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 475 A over 175 m (574.1 ft).

Copper Cable (≤3% Drop)13× 400 mm²Drop: 0.68V (2.85%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 14.67V (61.13%)
Voltage at Load23.3 VLine Loss: 325.0 W
Max Power & Breaker11.4 kW500A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 175m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A2371.83 V (9882.64%)0.0 V3912.42 V (16301.74%)1126620.8 WDrop High
2.5 mm²24 A18 A1423.1 V (5929.58%)0.0 V2347.45 V (9781.04%)675972.5 WDrop High
4 mm²32 A25 A889.44 V (3705.99%)0.0 V1467.16 V (6113.15%)422482.8 WDrop High
6 mm²41 A32 A592.96 V (2470.66%)0.0 V978.1 V (4075.43%)281655.2 WDrop High
10 mm²57 A44 A355.77 V (1482.4%)0.0 V586.86 V (2445.26%)168993.1 WDrop High
16 mm²76 A59 A222.36 V (926.5%)0.0 V366.79 V (1528.29%)105620.7 WDrop High
25 mm²101 A78 A142.31 V (592.96%)0.0 V234.74 V (978.1%)67597.2 WDrop High
35 mm²125 A97 A101.65 V (423.54%)0.0 V167.67 V (698.65%)48283.7 WDrop High
50 mm²151 A118 A71.16 V (296.48%)0.0 V117.37 V (489.05%)33798.6 WDrop High
70 mm²192 A150 A50.82 V (211.77%)0.0 V83.84 V (349.32%)24141.9 WDrop High
95 mm²232 A181 A37.45 V (156.04%)0.0 V61.77 V (257.4%)17788.8 WDrop High
120 mm²269 A210 A29.65 V (123.53%)0.0 V48.91 V (203.77%)14082.8 WDrop High
150 mm²309 A241 A23.72 V (98.83%)0.3 V39.12 V (163.02%)11266.2 WDrop High
185 mm²353 A275 A19.23 V (80.13%)4.8 V31.72 V (132.18%)9134.8 WDrop High
240 mm²415 A324 A14.82 V (61.77%)9.2 V24.45 V (101.89%)7041.4 WDrop High
300 mm²477 A372 A11.86 V (49.41%)12.1 V19.56 V (81.51%)5633.1 WDrop High
400 mm²570 A445 A8.89 V (37.06%)15.1 V14.67 V (61.13%)4224.8 WDrop High

FAQ — 475 Amp Cable Size at 175 Meters (24V DC (Off-Grid Solar / Industrial Control))

What mm² cable size is required for 475A at 175 meters (24V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 13× 400 mm² copper cable for 475A over 175m at 24V (voltage drop: 0.68V or 2.85%).

What is the power capacity of 475A at 24V?

At unity power factor, 475A at 24V supports 11.4 kW with a standard 500A circuit breaker.