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Old 08-13-2012, 06:33 PM   #1
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Main Breaker Tripping Due to Heat

I live in Arizona and I was told by my landlord's electrician that the main breaker tripped due to the excessive heat. Is this true? I owned my last house for 17 years and the electrical box faced the south and I never had this occur. Please help.


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Old 08-13-2012, 06:38 PM   #2
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Elevated ambient temperature will cause a breaker to trip at lower current than it would otherwise, but rarely enough that a breaker will trip under normal usage conditions. Most likely there is another problem contributing to the situation. There may be a loose connection on the breaker causing abnormal heating, or the panel may be overloaded.


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Old 08-13-2012, 06:46 PM   #3
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I have to agree, your main breaker needs to be re evaluated, im just assuming, but i'm betting that it is damaged goods...
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Old 08-13-2012, 08:42 PM   #4
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What is the size of the main and HOW much load is on it.
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Old 08-13-2012, 08:47 PM   #5
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I have only seen one load center breaker in my life that tripped in a hot space, and that was at 135 degrees that day in a boiler room. Turned out to be a faulty breaker. Replaced, never had the problem again.
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