⚡ 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 (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 200 m (656.2 ft).

Copper Cable (≤3% Drop)15× 400 mm²Drop: 0.68V (2.82%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 16.77V (69.86%)
Voltage at Load23.3 VLine Loss: 321.9 W
Max Power & Breaker11.4 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 A2710.67 V (11294.44%)0.0 V4471.33 V (18630.56%)1287566.7 WDrop High
2.5 mm²24 A18 A1626.4 V (6776.67%)0.0 V2682.8 V (11178.33%)772540.0 WDrop High
4 mm²32 A25 A1016.5 V (4235.42%)0.0 V1676.75 V (6986.46%)482837.5 WDrop High
6 mm²41 A32 A677.67 V (2823.61%)0.0 V1117.83 V (4657.64%)321891.7 WDrop High
10 mm²57 A44 A406.6 V (1694.17%)0.0 V670.7 V (2794.58%)193135.0 WDrop High
16 mm²76 A59 A254.12 V (1058.85%)0.0 V419.19 V (1746.61%)120709.4 WDrop High
25 mm²101 A78 A162.64 V (677.67%)0.0 V268.28 V (1117.83%)77254.0 WDrop High
35 mm²125 A97 A116.17 V (484.05%)0.0 V191.63 V (798.45%)55181.4 WDrop High
50 mm²151 A118 A81.32 V (338.83%)0.0 V134.14 V (558.92%)38627.0 WDrop High
70 mm²192 A150 A58.09 V (242.02%)0.0 V95.81 V (399.23%)27590.7 WDrop High
95 mm²232 A181 A42.8 V (178.33%)0.0 V70.6 V (294.17%)20330.0 WDrop High
120 mm²269 A210 A33.88 V (141.18%)0.0 V55.89 V (232.88%)16094.6 WDrop High
150 mm²309 A241 A27.11 V (112.94%)0.0 V44.71 V (186.31%)12875.7 WDrop High
185 mm²353 A275 A21.98 V (91.58%)2.0 V36.25 V (151.06%)10439.7 WDrop High
240 mm²415 A324 A16.94 V (70.59%)7.1 V27.95 V (116.44%)8047.3 WDrop High
300 mm²477 A372 A13.55 V (56.47%)10.4 V22.36 V (93.15%)6437.8 WDrop High
400 mm²570 A445 A10.16 V (42.35%)13.8 V16.77 V (69.86%)4828.4 WDrop High

FAQ — 475 Amp Cable Size at 200 Meters (24V DC (Off-Grid Solar / Industrial Control))

What mm² cable size is required for 475A at 200 meters (24V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 15× 400 mm² copper cable for 475A over 200m at 24V (voltage drop: 0.68V or 2.82%).

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.