Subscribe to our newsletter:

Electrician's Helper

iPhone / iPad
  • Business
  • Productivity
I want this app
Download from AppStore

Electrician’s Helper will take the hassle out of looking up electrical codes and doing complex calculations for installations.

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.

● Find the locked rotor current of a single or 3 phase motor.

● Estimate the Maximum Pull Tension.

● Calculate voltage, current and kVA of single and three phase transformers.

● Do basic ohm’s law calculations.

● Find decimal equivalents of fractions.

● Convert temperature scales.

● Look up connector configurations.

● Look up NEC tables 310.60(C)(67-84)

Tested with iOS 6.3 thru iOS 9.3

Please note that this is a calculator for codes used in the NEC and CEC. It is not a replacement for the code books.