Category Archives: Calculators

Cable calculators for electricians and engineers. Work out voltage drop, wire size and derating in mm² or AWG, checked against IEC and NEC limits.

NEC Voltage Drop Calculator – AWG & kcmil Sizing

NEC Chapter 9 · Tables 8 and 9 NEC Voltage Drop Calculator AWG and kcmil conductors. Uses effective impedance at your actual power factor, not a fixed 0.85. Single-phase AC Three-phase AC DC System voltage V 120, 240 or 277 Load current A Actual load, not the breaker size Conductor size One-way length ftm Board to load, one… Read More: NEC Voltage Drop Calculator – AWG & kcmil Sizing »

Voltage Drop Calculator – IEC 60364 mm² Cable Sizing

IEC 60364-5-52 · Annex G Voltage Drop Calculator Metric cable sizes. Enter the circuit, get the drop in volts and percent, checked against the IEC limit. Single-phase AC Three-phase AC DC Nominal voltage V Line to neutral Design current A IB, not the breaker rating Cross-section ≈ 12 AWG Run length m One way, not the loop Conductor… Read More: Voltage Drop Calculator – IEC 60364 mm² Cable Sizing »