Mike Holt's Electrical Toolbox

Mike Holt Enterprises

About this app

Mike Holt, the industry leader in the electrical industry (MikeHolt.com) has created an amazing, practical and useful app for the electrician, inspector, instructor, contractor and engineer. The app contains conductor sizing (including voltage drop limitations), circuit protection sizing, race sizing, equipment grounding conductor sizing for electric heating equipment (commercial and Residential), air-conditioning equipment (commercial and Residential), motors (commercial and Residential), Transformers (commercial) , and dwelling-unit service calculations and sizing.

Ratings and reviews

Was a good app, however the commercial motor calculations do not work. Not sure if its an Android issue. My coworker has the Ios version and it still works, doesnt work on the Android. I will fix rating once the issue has been resolved. (This issue has been fixed if you uninstall and re-install the latest update. Changed to 5 stars. Good job guys! Thank you for fixing this issue)

I have been a commercial - industrial electrician for 32 years. This man is a genius, not only in his knowledge but also in his ability to get it across to you clearly. I read his articles in trade magazines religiously, and they have helped me greatly in my career.

Great app for quick calculation

What's new

Dwelling Load Heating Fan loads allow values up to 20A.