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The answer is, yes and no.

Yes you can physically pull a 15 amp circuit breaker and install a 20 amp circuit breaker into the same slot on nearly all modern electrical distribution panels.

No, if the wiring is only 14 gauge then the potential exists to use more amps on the circuit than the wiring was designed for and you could be creating a hazard including fire from hot and shorted lines. A 20 amp circuit require no less than 12 gauge wire.

If you are having a problem with a 15 amp circuit breaker that cannot be resolved by replacing the breaker with another 15 amp circuit breaker, it's time to research why the breaker is tripping to start with. If it's tripping because there more than a 15 amp load, it's time to shed some of the existing load on that circuit.

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Q: Can you replace a 15 amp circuit breaker with a 20 amp circuit breaker?

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Yes. but the load rating of the circuit will be reduced to that of 15 amps.

A 15 amp circuit breaker will handle this situation very well. The smallest home breaker is rated at 15 amp.

Not a good idea. The only safe way it can be done is if by chance the wire from the 15 amp breaker is a #12 wire which is rated for 20 amps. The #14 wire which is most likely connected to the 15 amp breaker is only rated at 15 amps. By connecting a 20 amp possible load to a 15 amp rated circuit there is the possibility of heat being generated by the wire resulting in insulation failure and then circuit failure.

No tandem breakers are of the same value.

No the breaker will trip beause the circuits maximum current allowed by the breaker is 15 amps.

Related questions

Replace the 30 Amp Breaker with a 15 Amp breaker.

Not unless you change the wiring for that circuit. The breaker protects the wiring and if you install a 40 amp breaker on a 15 amp wire circuit you will have a fire in your home.

Yes. but the load rating of the circuit will be reduced to that of 15 amps.

A 15 amp circuit breaker will handle this situation very well. The smallest home breaker is rated at 15 amp.

Yes but it will limit your 20 amp circuit to 15 amps. Any amperage over 15 amps on the 20 amps circuit will trip the breaker protecting the sub panel.

A 15 amp dedicated circuit breaker should be used for the dishwasher. The disposal can be wired to the general kitchen 15 amp circuit.

Not a good idea. The only safe way it can be done is if by chance the wire from the 15 amp breaker is a #12 wire which is rated for 20 amps. The #14 wire which is most likely connected to the 15 amp breaker is only rated at 15 amps. By connecting a 20 amp possible load to a 15 amp rated circuit there is the possibility of heat being generated by the wire resulting in insulation failure and then circuit failure.

No tandem breakers are of the same value.

The pool light is usually on a 15 amp circuit. The breaker feeding this circuit must have a GFCI rating.

No the breaker will trip beause the circuits maximum current allowed by the breaker is 15 amps.

The trip point on a 15 amp breaker is 15 amps. So a load that draws a current over 15 amps will trip the breaker.

The only way you can change a 15 amp to a 20 is you have to replace the 14 gauge wire going to it with a 12 gauge wire, then replace the 15 amp breaker with a 20 amp breaker. You can put a 15 amp outlet on a 20 amp circuit as long as there is more then one receptacle. A double receptacle counts as two receptacles. Steve Green Coeur d'Alene, Idaho

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