How to Change a Circuit Breaker in an Electrical Panel
Circuit breakers are the main safety defense between electricity and your family. They're designedto halt the flow of electricity should there be a problem with the electrical line, outlet or a plugged-in device. Sometimes, though, they just wear out and need replacing. Knowing how to change a circuit breaker in an electrical panel is critical to performing this task safely and correctly. Does this Spark an idea?
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Things You'll Need
- Flashlight
- Voltage tester
- Screwdriver
- Wire cutters/strippers
- Circuit breaker
Instructions
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1
Turn off all the power at the main breaker using the main breaker switch located at the top of the panel.
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2
Remove the four screws (once in each corner) using a screwdriver to remove the door and panel over the circuit box. Place the cover off to the side.
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3
Test a couple of circuit breakers around the breaker that needs to be changed. Use the voltage tester to ensure that the power is reading zero and the wires are safe to handle.
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4
Disconnect the black (hot) wire that is connected to the breaker to be replaced. Use the screwdriver and pry the breaker out of the socket that it is plugged into. Discard the breaker.
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5
Snap the new breaker into position until it is seated flush with the other breakers.
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6
Connect the black wire (from Step 5) to the screw and tighten it securely with the screwdriver.
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7
Turn the main power back on and test the the breaker in the on and off positions to ensure that power is flowing to the breaker.
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8
Turn the main power breaker back to the off position.
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9
Replace the cover panel and door with the screws, and tighten them to a snug fit. Turn the main power and the new breaker back to the on position.
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Tips & Warnings
Prior to do any electrical work, be sure to contact a licensed electrician as well as obtain any necessary permits.
Never touch any electrical wires without first testing them with a voltage tester, following the manufacturer's guidelines for proper operation and safety.
Always assume an electrical wire is hot before doing any work.
