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Can you safely change a 30 amp breaker to 20 amps?
No, this is not a recommended procedure. The breakers main job is to protect the wire that is connected to it. A 20A breaker will have a #12 wire (rated 20A) connected to it. A 30A breaker will have a #10 wire (rated 30A) connected to it. As you can see if you use a 30A breaker on a #12 wire you could overload the wire by 10 amps. I have seen an incident where the insulation has melted off of an overloaded wire, the wire short out and a fire start before the bigger size breaker tripped. DON'T DO IT.
What breaker do you use for 10-2 wire?
For 10-2 wire, you would typically use a 30-amp breaker. This size breaker is commonly used for 10-gauge wire in residential electrical installations. Make sure to check your local electrical codes and the manufacturer's recommendations for the specific application.
Do you need to use some type of mini breaker panel with a single 15A circuit breaker to connect a 15A receptacle into a 30A line?
Yes, you need to use a mini breaker panel with a 15A circuit breaker to safely connect a 15A receptacle to a 30A line. The breaker panel will protect the receptacle and wiring from the higher current capacity of the 30A line, preventing potential overheating or damage. It's important to match the amperage of the circuit breaker with the rating of the receptacle to ensure safe electrical operation.
Is 10-3 wire heavy enough for a washer-dryer combination if they are 50 feet away from the breaker box?
No, for a 50-foot run from the breaker box, 10-3 wire is not heavy enough for a washer-dryer combination. It is recommended to use 8-3 wire for this distance to ensure safe and efficient electrical supply for the appliances.
If you install a 30A 240V GFI breaker will this be ok or will the cycles the dryer has prematurely fail the breaker?
Installing a 30A 240V GFI breaker for a dryer should be fine as long as the wiring and dryer itself are compatible with the breaker. The GFI breaker is designed to protect against electrical faults and should not be affected by the cycles of the dryer. Make sure to follow the installation instructions carefully to ensure proper functioning.
