⚡ 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

750 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 750 A over 175 m (574.1 ft).

Copper Cable (≤3% Drop)10× 400 mm²Drop: 1.4V (2.93%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 23.17V (48.26%)
Voltage at Load46.6 VLine Loss: 1053.3 W
Max Power & Breaker36.0 kW800A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 750A at 175m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A3745.0 V (7802.08%)0.0 V6177.5 V (12869.79%)2808750.0 WDrop High
2.5 mm²24 A18 A2247.0 V (4681.25%)0.0 V3706.5 V (7721.87%)1685250.0 WDrop High
4 mm²32 A25 A1404.37 V (2925.78%)0.0 V2316.56 V (4826.17%)1053281.2 WDrop High
6 mm²41 A32 A936.25 V (1950.52%)0.0 V1544.38 V (3217.45%)702187.5 WDrop High
10 mm²57 A44 A561.75 V (1170.31%)0.0 V926.62 V (1930.47%)421312.5 WDrop High
16 mm²76 A59 A351.09 V (731.45%)0.0 V579.14 V (1206.54%)263320.3 WDrop High
25 mm²101 A78 A224.7 V (468.12%)0.0 V370.65 V (772.19%)168525.0 WDrop High
35 mm²125 A97 A160.5 V (334.37%)0.0 V264.75 V (551.56%)120375.0 WDrop High
50 mm²151 A118 A112.35 V (234.06%)0.0 V185.32 V (386.09%)84262.5 WDrop High
70 mm²192 A150 A80.25 V (167.19%)0.0 V132.38 V (275.78%)60187.5 WDrop High
95 mm²232 A181 A59.13 V (123.19%)0.0 V97.54 V (203.21%)44348.7 WDrop High
120 mm²269 A210 A46.81 V (97.53%)1.2 V77.22 V (160.87%)35109.4 WDrop High
150 mm²309 A241 A37.45 V (78.02%)10.6 V61.77 V (128.7%)28087.5 WDrop High
185 mm²353 A275 A30.36 V (63.26%)17.6 V50.09 V (104.35%)22773.6 WDrop High
240 mm²415 A324 A23.41 V (48.76%)24.6 V38.61 V (80.44%)17554.7 WDrop High
300 mm²477 A372 A18.72 V (39.01%)29.3 V30.89 V (64.35%)14043.7 WDrop High
400 mm²570 A445 A14.04 V (29.26%)34.0 V23.17 V (48.26%)10532.8 WDrop High

FAQ — 750 Amp Cable Size at 175 Meters (48V DC (LiFePO4 Battery Bank / Telecom))

What mm² cable size is required for 750A at 175 meters (48V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 10× 400 mm² copper cable for 750A over 175m at 48V (voltage drop: 1.4V or 2.93%).

What is the power capacity of 750A at 48V?

At unity power factor, 750A at 48V supports 36.0 kW with a standard 800A circuit breaker.