⚡ 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 350 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 350 m (1148.3 ft).

Copper Cable (≤3% Drop)13× 400 mm²Drop: 1.37V (2.85%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 29.34V (61.13%)
Voltage at Load46.6 VLine Loss: 650.0 W
Max Power & Breaker22.8 kW500A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 475A at 350m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A4743.67 V (9882.64%)0.0 V7824.83 V (16301.74%)2253241.7 WDrop High
2.5 mm²24 A18 A2846.2 V (5929.58%)0.0 V4694.9 V (9781.04%)1351945.0 WDrop High
4 mm²32 A25 A1778.87 V (3705.99%)0.0 V2934.31 V (6113.15%)844965.6 WDrop High
6 mm²41 A32 A1185.92 V (2470.66%)0.0 V1956.21 V (4075.43%)563310.4 WDrop High
10 mm²57 A44 A711.55 V (1482.4%)0.0 V1173.72 V (2445.26%)337986.2 WDrop High
16 mm²76 A59 A444.72 V (926.5%)0.0 V733.58 V (1528.29%)211241.4 WDrop High
25 mm²101 A78 A284.62 V (592.96%)0.0 V469.49 V (978.1%)135194.5 WDrop High
35 mm²125 A97 A203.3 V (423.54%)0.0 V335.35 V (698.65%)96567.5 WDrop High
50 mm²151 A118 A142.31 V (296.48%)0.0 V234.74 V (489.05%)67597.2 WDrop High
70 mm²192 A150 A101.65 V (211.77%)0.0 V167.67 V (349.32%)48283.7 WDrop High
95 mm²232 A181 A74.9 V (156.04%)0.0 V123.55 V (257.4%)35577.5 WDrop High
120 mm²269 A210 A59.3 V (123.53%)0.0 V97.81 V (203.77%)28165.5 WDrop High
150 mm²309 A241 A47.44 V (98.83%)0.6 V78.25 V (163.02%)22532.4 WDrop High
185 mm²353 A275 A38.46 V (80.13%)9.5 V63.44 V (132.18%)18269.5 WDrop High
240 mm²415 A324 A29.65 V (61.77%)18.4 V48.91 V (101.89%)14082.8 WDrop High
300 mm²477 A372 A23.72 V (49.41%)24.3 V39.12 V (81.51%)11266.2 WDrop High
400 mm²570 A445 A17.79 V (37.06%)30.2 V29.34 V (61.13%)8449.7 WDrop High

FAQ — 475 Amp Cable Size at 350 Meters (48V DC (LiFePO4 Battery Bank / Telecom))

What mm² cable size is required for 475A at 350 meters (48V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 13× 400 mm² copper cable for 475A over 350m at 48V (voltage drop: 1.37V or 2.85%).

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.