Basic 220 Volt Circuits

220 volt circuits (AKA 230 volt, or 240 volt) are used to supply power to appliances which draw high currents such as clothes dryers, ranges, ovens, cook-tops, heaters, air conditioners, rotary phase converters, and water heaters.

This article is for informational purposes only, and it may be entirely or partly incorrect.  Electrical work should only be performed by qualified persons. Anyone who does electrical work must always follow all safety rules and guidelines. Read the Safety Rules for Electrical work before going any further.  By continuing you agree that you are responsible for your own actions.

Parts of a 220 Circuit Continue reading “Basic 220 Volt Circuits”

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Free NEC Standard Method Single Family Residential – Electric Service Entrance Load Calculator


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Total # of Small Appliance Branch circuits (must be at least 2). If you have gas appliances which require a 120v branch circuit include them here. Continue reading “Free Electric Load Calculator”