Converting a 240 Volt Circuit to 120 Volt

By Dave Rongey - Summary:

How to Convert a Circuit from 240volt to 120volt: The Basics of converting a Dedicated 240 Volt Circuit to a 120 Volt Circuit.

Dedicated Circuit Conversion from 240 Volts to 120 Volts

Electrical Question: I’m working with a Kitchen remodel in a 1961 ranch style house. We took out the wall oven and wanted to add a dishwasher. The original wiring is black, white, and red no ground that I can see.  My father in law had me get 14-2 wire to join with the old wiring in junction box and then the new wiring will go to dishwasher. How can you do this? I don’t see how with extra red wire and no ground? Any suggestions?


This electrical question came from: Robyn, from Cincinnati, Ohio.

Dave’s Reply:
Thanks for your electrical question Robyn.

How to Convert From 240 Volt to 120 Volt

240 120 electric circuit conversion

Application: 240volt to 120volt Circuit Wiring.
Skill Level: Intermediate to Advanced, Best installed by a Licensed Electrical Contractor.
Tools Required: Basic Electricians Pouch Hand Tools and Electrical Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and install electrical circuit wiring.
Precaution: Identify the panel circuit, turn it OFF and Tag it with a Note before working with the wiring and components.
Warning: Working in an electric panel is dangerous due to arc flash hazards and the possibility of electric shock, therefore homeowners and non-electricians should not perform this procedure but rather consult an electrician for assistance.
Notice: Installing or modifying circuit wiring should be done according to local and national electrical codes with a permit and be inspected.

Electrical Circuit Conversion

Here are the Basics of converting a Dedicated 24o Volt Circuit to a 120 Volt Circuit

More about 240 Volt Circuit Wiring

240 Volt Wiring Diagram
220 Volt Wiring Diagram

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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all projects.


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