When Does a Subpanel Need a Main Breaker?
You Have to Have a Main If the Sub Panel Is in Another Building. If It's in the Same Building the Main That Feeds It Is Sufficient. What Article States That...
You have to have a main if the sub panel is in another building. If it's in the same building the main that feeds it is sufficient. What article states that. Article 225.33 allows six breakers max for the disconnecting means.
Do I need a main breaker in a sub panel?
The subpanel may be equipped with a main breaker to allow for power interruption without having to go back to the main panel, but it is not required to have a main shutoff circuit breaker, since the feeder breaker back in the main panel serves this function.
Does a 60 amp sub panel need a main breaker?
Your subpanel does not need a main breaker if it's in the same building. If it is in an outbuilding, you need a disconnect switch, and the breaker will suffice but its size doen't matter.
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