⚡ 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

650 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 650 A over 175 m (574.1 ft).

Copper Cable (≤3% Drop)9× 400 mm²Drop: 1.35V (2.82%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 20.08V (41.83%)
Voltage at Load46.6 VLine Loss: 879.0 W
Max Power & Breaker31.2 kW700A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 650A at 175m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A3245.67 V (6761.81%)0.0 V5353.83 V (11153.82%)2109683.3 WDrop High
2.5 mm²24 A18 A1947.4 V (4057.08%)0.0 V3212.3 V (6692.29%)1265810.0 WDrop High
4 mm²32 A25 A1217.12 V (2535.68%)0.0 V2007.69 V (4182.68%)791131.2 WDrop High
6 mm²41 A32 A811.42 V (1690.45%)0.0 V1338.46 V (2788.45%)527420.8 WDrop High
10 mm²57 A44 A486.85 V (1014.27%)0.0 V803.07 V (1673.07%)316452.5 WDrop High
16 mm²76 A59 A304.28 V (633.92%)0.0 V501.92 V (1045.67%)197782.8 WDrop High
25 mm²101 A78 A194.74 V (405.71%)0.0 V321.23 V (669.23%)126581.0 WDrop High
35 mm²125 A97 A139.1 V (289.79%)0.0 V229.45 V (478.02%)90415.0 WDrop High
50 mm²151 A118 A97.37 V (202.85%)0.0 V160.61 V (334.61%)63290.5 WDrop High
70 mm²192 A150 A69.55 V (144.9%)0.0 V114.72 V (239.01%)45207.5 WDrop High
95 mm²232 A181 A51.25 V (106.77%)0.0 V84.53 V (176.11%)33310.8 WDrop High
120 mm²269 A210 A40.57 V (84.52%)7.4 V66.92 V (139.42%)26371.0 WDrop High
150 mm²309 A241 A32.46 V (67.62%)15.5 V53.54 V (111.54%)21096.8 WDrop High
185 mm²353 A275 A26.32 V (54.83%)21.7 V43.41 V (90.44%)17105.5 WDrop High
240 mm²415 A324 A20.29 V (42.26%)27.7 V33.46 V (69.71%)13185.5 WDrop High
300 mm²477 A372 A16.23 V (33.81%)31.8 V26.77 V (55.77%)10548.4 WDrop High
400 mm²570 A445 A12.17 V (25.36%)35.8 V20.08 V (41.83%)7911.3 WDrop High

FAQ — 650 Amp Cable Size at 175 Meters (48V DC (LiFePO4 Battery Bank / Telecom))

What mm² cable size is required for 650A at 175 meters (48V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 9× 400 mm² copper cable for 650A over 175m at 48V (voltage drop: 1.35V or 2.82%).

What is the power capacity of 650A at 48V?

At unity power factor, 650A at 48V supports 31.2 kW with a standard 700A circuit breaker.