⚡ 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 (48V DC (LiFePO4 Battery Bank / Telecom))

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)7× 400 mm²Drop: 1.27V (2.65%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 14.67V (30.57%)
Voltage at Load46.7 VLine Loss: 603.5 W
Max Power & Breaker22.8 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 (4941.32%)0.0 V3912.42 V (8150.87%)1126620.8 WDrop High
2.5 mm²24 A18 A1423.1 V (2964.79%)0.0 V2347.45 V (4890.52%)675972.5 WDrop High
4 mm²32 A25 A889.44 V (1852.99%)0.0 V1467.16 V (3056.58%)422482.8 WDrop High
6 mm²41 A32 A592.96 V (1235.33%)0.0 V978.1 V (2037.72%)281655.2 WDrop High
10 mm²57 A44 A355.77 V (741.2%)0.0 V586.86 V (1222.63%)168993.1 WDrop High
16 mm²76 A59 A222.36 V (463.25%)0.0 V366.79 V (764.14%)105620.7 WDrop High
25 mm²101 A78 A142.31 V (296.48%)0.0 V234.74 V (489.05%)67597.2 WDrop High
35 mm²125 A97 A101.65 V (211.77%)0.0 V167.67 V (349.32%)48283.7 WDrop High
50 mm²151 A118 A71.16 V (148.24%)0.0 V117.37 V (244.53%)33798.6 WDrop High
70 mm²192 A150 A50.82 V (105.89%)0.0 V83.84 V (174.66%)24141.9 WDrop High
95 mm²232 A181 A37.45 V (78.02%)10.5 V61.77 V (128.7%)17788.8 WDrop High
120 mm²269 A210 A29.65 V (61.77%)18.4 V48.91 V (101.89%)14082.8 WDrop High
150 mm²309 A241 A23.72 V (49.41%)24.3 V39.12 V (81.51%)11266.2 WDrop High
185 mm²353 A275 A19.23 V (40.06%)28.8 V31.72 V (66.09%)9134.8 WDrop High
240 mm²415 A324 A14.82 V (30.88%)33.2 V24.45 V (50.94%)7041.4 WDrop High
300 mm²477 A372 A11.86 V (24.71%)36.1 V19.56 V (40.75%)5633.1 WDrop High
400 mm²570 A445 A8.89 V (18.53%)39.1 V14.67 V (30.57%)4224.8 WDrop High

FAQ — 475 Amp Cable Size at 175 Meters (48V DC (LiFePO4 Battery Bank / Telecom))

What mm² cable size is required for 475A at 175 meters (48V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 7× 400 mm² copper cable for 475A over 175m at 48V (voltage drop: 1.27V or 2.65%).

What is the power capacity of 475A at 48V?

At unity power factor, 475A at 48V supports 22.8 kW with a standard 500A circuit breaker.