How to Make 120 Volts from 220 Volts

 Converting a 220Volt Circuit to 120Volt: A Safe Method for Creating 120Volt from 220Volt, Splitting a 220Volt Circuit to 120Volt.

How To Hook Up a Generator to the House Panel Using a Circuit Breaker Interlock Kit For Backup Power

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Converting a 220Volt Circuit to 120Volt

[ad#block] Electrical Question: Is it possible to add a disconnect or transfer switch to an existing 220 A.C. circuit then reduce voltage to 110 by splitting 220 power circuit via sub panel reducing circuit to two 110 circuits?

This home electrical repairs question came from: Kellett, in Keaau, Hawaii.

Thanks for your electrical troubleshooting question Kellett.

Splitting a 220Volt Circuit to 120Volt

• A Safe Method for Creating 120Volt from 220Volt

• With this question I don’t think having a transfer switch or disconnect would be the main issue with your question, however I believe the issue would be if the 220 volt circuit has a dedicated and insulated neutral wire, if not then no you cannot split the circuit to create two 120 volt circuits.
• The neutral IS needed. If the there is a neutral wire then it would be best to feed a small sub panel with the 220 volt circuit and split out the 120 volt circuit from there with circuit breakers sized accordingly.
• VERY IMPORTANT
• Don’t get confused or tempted to use the ground wire as a neutral because that is Very Dangerous!
• The neutral wire is used as a current carrying conductor and that is why is it insulated, and a ground wire is not designed to carry current except for the instantaneous occurrence when power shorts to ground for whatever reason, thereby tripping or interrupting the circuit.
• If an insulated ground wire is used as a neutral wire this will create a very hazardous condition which could result in energized parts in the area which cane very easily produce an electrocution and shock.

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House Wiring Circuits and Circuit Breakers

This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
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Electrical Circuit Wiring

This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Home Electrical Panel Circuit Listing

Electric Circuit Listing

The size of the home electrical service panel is designed by calculating the square footage of the home and factoring in the code requirements for the electrical circuits that are required.

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Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home. See how electrical outlets for the home are wired.

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Dave's Guide to Home Electrical Wiring:

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Great for any Home Wiring Project.

Complete Guide to Home Electrical Wiring

Perfect for Homeowners, Students,
Handyman, Handy Women, and Electricians
Includes:
Wiring GFCI Outlets
Wiring Home Electric Circuits
120 Volt and 240 Volt Outlet Circuits
Wiring Light Switches
Wiring 3-Wire and 4-Wire Electric Range
Wiring 3-Wire and 4-Wire Dryer Cord and Dryer Outlet
How to Troubleshoot and Repair Electrical Wiring
Wiring Methods for Upgrading Electrical Wiring
NEC Codes for Home Electrical Wiring
....and much more.

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

The Safest Way to Test Electrical Devices and Identify Electric Wires!

The Non-Contact Electrical Tester
This is a testing tool that I have had in my personal electrical tool pouch for years, and is the first test tool I grab to help identify electrical wiring. It is a Non-contact tester that I use to easily Detect Voltage in Cables, Cords, Circuit Breakers, Lighting Fixtures, Switches, Outlets and Wires. Simply insert the end of the tester into an outlet, lamp socket, or hold the end of the tester against the wire you wish to test. Very handy and easy to use.

The Quickest Way to Check for Faulty Electrical Wiring!

The Plug-In Outlet Tester
This is the first tool I grab to troubleshoot a problem with outlet circuit wiring. This popular tester is also used by most inspectors to test for power and check the polarity of circuit wiring.
It detects probable improper wiring conditions in standard 110-125 VAC outlets Provides 6 probable wiring conditions that are quick and easy to read for ultimate efficiency Lights indicate if wiring is correct and indicator light chart is included Tests standard 3-wire outlets UL Listed Light indicates if wiring is incorrect Very handy and easy to use.

Strip Off Wire Insulation without Nicking and Damaging the Electric Wire!

The Wire Stripper and Wire Cutter
My absolute favorite wire stripping tool that I have had in my personal electrical tool pouch for years, and this is the tool I use to safely strip electrical wires.
This handy tool has multiple uses:
The wire gauges are shown on the side of the tool so you know which slot to use for stripping insulation.
The end of the tool can be used to grip and bend wire which is handy for attaching wire onto the screw terminals of switches and outlets..

The wire stripper will work on both solid and stranded wire. This tool is Very Handy and Easy to Use.

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