Why a New 240 Volt Circuit Produces 120 Volts
Why is my 240 volt circuit only showing 120 volts? How to Correct Incorrect Circuit Voltage.
Electrical Panel and Circuit Breaker Types
[ad#block]Electrical Question: Why is my 240 volt circuit only showing 120 volts?
I pulled 10/3 wire from my panel to the dryer unit and installed a 30 amp breaker. I’m getting 110 on each leg but get nothing when crossing them. I already replaced breaker and get the same thing.
This electrical wiring question came from: Joe, a Handyman from Tewksbury, Massachusetts.
Additional Comments: very informative
Thanks for your electrical wiring question Joe.
Application: Electrical Wiring.
Skill Level: Intermediate to Advanced – Best performed by a Licensed Electrician.
Electrical Tools Required: Basic Electricians Pouch Hand Tools, Voltage Tester, and appropriate Safety Gear.
Estimated Time: Depends on the personal level experience, ability to work with tools, install electrical circuit wiring, and the available access to the project area.
Electrical Safety: Identify the electrical power source, turn it OFF and Tag with a Note before working with the electrical wiring.
Electrical Wiring Parts and Materials: Electrical parts and materials should be approved for the specific project and compliant with local and national electrical codes.
Electrical Codes and Inspections: Installing or changing home electrical wiring should be done according to local and national electrical codes as adopted in your local area. A permit and inspections may also be required.
How to Correct Incorrect Circuit Voltage
There are some electrical panels which do not have a standard configuration which will produce 120 volts instead of 240 volts, this is one of those types of panels, but there is a solution.
Joe, you’ll need to re position the circuit breaker in the panel because you are not attached to separate buses. This has to do with the type of circuit breaker you have and the brand of the electrical panel.
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This link is helpful as a Handyman
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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 Electric Wiring Projects.
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