Eaton circuit breakers do not have a strict expiration date or fixed calendar replacement schedule, meaning they can easily function for 30 to 40 years or more under normal residential conditions. However, they should be inspected regularly and replaced immediately if they exhibit signs of failure, such as frequent nuisance tripping, physical cracking on the housing, burn marks, a spongy or loose toggle handle, or failure to trip during an overcurrent event.
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