How do I know if I need 20amp, or 15amp? (1 Viewer)

[Kevin C Brown]

In my circuit breaker box itself, the little switches themselves have either 15A or 20A on them.

 

[Wayne A. Pflughaupt]

Delete - posted on wrong thread.

 

[Joel X]

Nothing wrong with running wire that is too big. There comes a problem with wire that is too small though.

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