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Online Electrical Resources, Calculators + More for Engineers, Students, Electricians and Hobbyists


Use the navigation bar above to access electrical resources, essential tools, calculators, current NEC and NFPA compliant tables, and useful links for engineers, students, electricians and hobbyists. Use the quick links below to access the most popular resources on this site. Review our Terms and Conditions and be sure visit our Contact page to leave any feedback.


Essential Electrical Tools Everyone Needs in Their Toolbox


Electrical Symbols & Components


Basic Electrical Terms


Electrical Equations


Electrical Units and Conversions


Full List of Electrical Calculators


Automation & Ladder Logic Basics


Residential Power Basics


Industrial Power Distribution


Recent NEC & NFPA 70E Changes