⚡ 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

225 Amp Cable Size at 500 Meters (48V DC (LiFePO4 Battery Bank / Telecom))

IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 225 A over 500 m (1640.4 ft).

Copper Cable (≤3% Drop)9× 400 mm²Drop: 1.34V (2.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 19.86V (41.37%)
Voltage at Load46.7 VLine Loss: 300.9 W
Max Power & Breaker10.8 kW225A MCB/MCCB

IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 225A at 500m

Cross-Section (mm²)Cu AmpacityAl Ampacity Cu Voltage DropLoad VoltageAl Voltage DropPower LossStatus
1.5 mm²16 A12 A3210.0 V (6687.5%)0.0 V5295.0 V (11031.25%)722250.0 WDrop High
2.5 mm²24 A18 A1926.0 V (4012.5%)0.0 V3177.0 V (6618.75%)433350.0 WDrop High
4 mm²32 A25 A1203.75 V (2507.81%)0.0 V1985.62 V (4136.72%)270843.8 WDrop High
6 mm²41 A32 A802.5 V (1671.88%)0.0 V1323.75 V (2757.81%)180562.5 WDrop High
10 mm²57 A44 A481.5 V (1003.12%)0.0 V794.25 V (1654.69%)108337.5 WDrop High
16 mm²76 A59 A300.94 V (626.95%)0.0 V496.41 V (1034.18%)67710.9 WDrop High
25 mm²101 A78 A192.6 V (401.25%)0.0 V317.7 V (661.88%)43335.0 WDrop High
35 mm²125 A97 A137.57 V (286.61%)0.0 V226.93 V (472.77%)30953.6 WDrop High
50 mm²151 A118 A96.3 V (200.62%)0.0 V158.85 V (330.94%)21667.5 WDrop High
70 mm²192 A150 A68.79 V (143.3%)0.0 V113.46 V (236.38%)15476.8 WDrop High
95 mm²232 A181 A50.68 V (105.59%)0.0 V83.61 V (174.18%)11403.9 WDrop High
120 mm²269 A210 A40.12 V (83.59%)7.9 V66.19 V (137.89%)9028.1 WDrop High
150 mm²309 A241 A32.1 V (66.88%)15.9 V52.95 V (110.31%)7222.5 WDrop High
185 mm²353 A275 A26.03 V (54.22%)22.0 V42.93 V (89.44%)5856.1 WDrop High
240 mm²415 A324 A20.06 V (41.8%)27.9 V33.09 V (68.95%)4514.1 WDrop High
300 mm²477 A372 A16.05 V (33.44%)31.9 V26.47 V (55.16%)3611.2 WDrop High
400 mm²570 A445 A12.04 V (25.08%)36.0 V19.86 V (41.37%)2708.4 WDrop High

FAQ — 225 Amp Cable Size at 500 Meters (48V DC (LiFePO4 Battery Bank / Telecom))

What mm² cable size is required for 225A at 500 meters (48V)?

According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 9× 400 mm² copper cable for 225A over 500m at 48V (voltage drop: 1.34V or 2.79%).

What is the power capacity of 225A at 48V?

At unity power factor, 225A at 48V supports 10.8 kW with a standard 225A circuit breaker.