ConvertConversion software - converts just about anything
Electric Calculator 1Lighting and motor calcs / Pipe and wire size
Electrical/Electronic FormulasElectronic calculators / Electrical Calcs - single phase&ampere three phase 
Electric Calculator 2DC voltage, current,  power, resistance calculators / wire size / conduit size
Motor Data CalculatorSingle Phase and Three Phase motor calculators by Square D
Ohm's Law CalculatorCalculate voltage, ampere, resistance and power
Voltage Drop CalculatorVoltage drop program
Select a Fusepick the right fuse (By Gould Shawmut)