Voltage Drop Calculator
⚠️
Based on IEC 60364-5-52 reference ampacities. Final cable selection must consider installation method, temperature and local code.
⚙️ Circuit
Load current (A)
Run length (m)
Conductor
Copper
Aluminum
System
3-phase 400V
1-phase 230V
Max allowed voltage drop (%)
📊 Result
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Voltage Drop Calculator
from QDTB.