Electrician Handbook

In-app purchases
4.7
110K reviews
Content rating
Everyone
10M+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

For everyone whose work involves electricity — for professionals, beginners and enthusiasts.

This app is a springboard for further study of electrical engineering.

The app includes four sections: theory, electrical wiring diagrams, tests, and calculators.

The app offers over 55 concise articles and 7 calculators. Content is added and updated regularly — feel free to suggest topics.

Briefly covers voltage, current, power, short circuits, Ohm’s law, and much more.

Warning! When working with electrical equipment, electrical safety requirements must be strictly observed. Remember: electricity cannot be seen or heard. Be careful.
Updated on
Mar 6, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App info and performance and Device or other IDs
This app may collect these data types
App info and performance and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.7
108K reviews
Oaky R.
April 28, 2021
The app itself is useful and gorgeous. It lacks some info like ampere ratings, and I personally want to know how to install a two way switch. I dont even know a two way switch from a three way switch, but I know it is complicated. A switch is so simple. Electricity is not simple. Anyway, this app disapoints in its lack of textbook style knowlege. Two stars for you guys!
254 people found this review helpful
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osward moonga
May 20, 2026
amazing app I was really behind but now I know most things concerning electricity.ads not a problem to me. if possible add some videos for better understanding thanks.
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Kamel Moh
May 17, 2026
useful app but it need more options like how to choose the wire thin andhow to get better selectivity and how to calculate the Consumption for building a proper circuit Also the principles of industrial electricity thanks for this good app 🤠
1 person found this review helpful
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What’s new

- Added "Electrical Panel Designer" tab
- Added quick result copying for voltage drop calculator