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Method to Convert 220 volt to 120 volt

Voltage Converters or Transformers for Specific 120 Volt Applications: A 120 volt circuit cannot be tapped off of a 220 volt circuit simply because there is no insulated neutral wire conductor that is used in this type of 220 volt circuit.


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Voltage Converters or Transformers
[ad#block]Electrical Question: Would it be possible to tap into a 220v junction box for a 120 v power supply?

This electrical wiring question came from: Russell, a Handyman in California.

Dave’s Reply:
Thanks for your electrical wiring question Russell.

Voltage Converters or Transformers for Specific 120 Volt Applications

To locate a supplier  just search for : 220 to 120 Voltage Converters & Transformers

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Complete Guide to Home Electrical Wiring

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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.

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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.

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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..

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FAQs Frequently Asked Questions and Comments

4 Responses to “Method to Convert 220 volt to 120 volt”
  1. Dave Rongey says:

    Sure Joe, here is an example with the basics:
    The power source must be decided for what is available at a typical location, this will specify the size of the primary cable and the size and type of male plug or cord body that will be used.
    The primary cable would be 4-wire, 2 Hots: Black and Red, 1 Neutral White, and the Ground. The primary cable is connected as the LINE to a 2 circuit panel, the Neutral and Ground wires attaching to their own separate terminal blocks.
    One 2-pole circuit breaker is installed in the panel which would provide 2 circuits of power out to a 2-gang metal outlet box. The Cable feeding the outlets would be a 4-wire like the primary cable but sized to the circuit, possibly 15 or 20 amp for example. Of the cable to the outlet box the black wire connects to one outlet, red to the other, the neutral is shared, the ground shared and bonded to the box. Connections to the outlets as noted in wiring diagrams section.
    Hope this helps – send me a tune!

  2. joe says:

    I would like information on how to build a converter box with a 220 volt plug and cable going in the top of the circuit breaker box and 4 20amp/120vac 4 outlet recepticles coming out the bottom. I have seen them and used one before when i was performing in a band at bar plug into a 220 recepticle on the wall, it was portable

  3. Steve Wiser says:

    Would it be possible for me to safely tap into a 220v junction box (with an insulated neutral wire) for a 110 power supply?

  4. Ali Bajaber says:

    How can I install my own power generator at home, using solar source or wind? What kind of materials needed for that purpose, and where can I get them??