Circuit breaker buzzing

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Old 12-27-15, 12:26 PM
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Circuit breaker buzzing

I guess I have had this problem for a while, but I just never noticed it till recently. I went to check something at the main electrical panel outside the house when I noticed a very faint buzzing sound. There are about 30 circuit breakers, and I have isolated the buzzing sound to one individual breaker that powers the kitchen lights.

I am a bit baffled as to what is causing the buzzing. I have checked the connections at the light switches and junction boxes in the attic that have to do with this circuit, but it seems like everything is wired appropriately. Not sure what it could be.
 
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Old 12-27-15, 01:03 PM
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Circuit breakers use a combination of thermal and magnetic tripping. Breakers are not supposed to buzz but I have heard many that do. Sometimes it's from a large load being turned on or a smaller inductive load being turned on. It doesn't mean the breaker is bad and does not require it to be replaced.
 
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