Electrician's Helper

Carry-On Software LLC

About this app

Electrician's helper provides many useful calculators and converters for electricians and anyone working with power distribution.

Both the NEC and CEC codes are covered.

With Electrician’s Helper you can...

● Calculate voltage, current and power in 3 phase delta and wye circuits.
● Find the ampacity of a conductor as per the NEC and CEC tables.
● Calculate the voltage drop in a line based on length, size, current and temperature.
● Find the total box fill by entering the size and number of conductors, straps and clamps.
● Find the maximum number of conductors allowed in a particular size raceway based on NEC and CEC rules.
● Determine what size raceway is needed for a bundle of conductors.
● Find the maximum bend radius of a conduit.
● Find the maximum capacitor kvar for a motor and the current reduction obtained.
● Find the motor current, heater current, breaker required, wire size, starter and conduit size for a particular 3 phase motor.
● Find the full load current of an induction, squirrel cage, and synchronous motor.
● Calculate voltage, current and kVA values for single and three phase transformers.
● Find the locked rotor current of a single or 3 phase motor.
● Do basic Ohm’s law calculations.
● Find decimal equivalents of fractions.
● Convert temperature scales.
● Look up connector configurations.

Ratings and reviews

can't manually enter number of wires while looking for maximum wires for conduit fill. you have to just tap the 'add 1' until it gets to the number you want... and when it is over a hundred clicks (like number of 12ga wire in a 2 in. EMT) that really sucks. please address that and let us be able to manually type in the number of wires we are adding instead of just having to click 'Add 1' for every wire! edit: thanks for the reply! look forward to the update!

I think it's a great app... My only question is why the ampacity tables are so much lower than what the NEC states is allowable?

Maximum Wires under "Conduit" section mistakenly says "Conduit Type" when choosing WIRE type.