Can I replace my 100 amp breaker with a 200 amp breaker?
Also to know is, can I put a 200 amp breaker in a 100 amp panel?
You cannot put a 200 amp main breaker panel on a 100 amp service, unless the service is protected at 100 amps.
Also to know, what does a double 100 amp breaker mean?
It depends on what you mean when you say it has double 100 amp breakers. If you mean the breaker has 2 handles that are tied together and both handles say 100 amps then no it is only a 100 amp service. If you see 4 handles tied together then it would most likely be 200 amps.
Explanation: Upgrading any electrical service is required to provide a permit to ensure the electrical was installed correctly. This is for the home owners safety. Explanation: If you upgrade to a higher amperage. Yes a permit is needed.