circuit breakers

Old 06-17-06, 04:48 PM
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circuit breakers

Do circuit breakers go bad?
What is the difference between limited and nonlimited breakers?
Old 06-17-06, 05:42 PM
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Yes, they go bad. Springs weaken, overloads may cause damage, corrosion may restrict movements and some like Zinsco or Federal are born bad and don't get better.
Old 06-17-06, 05:49 PM
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If you are referring to CTL vs Non-CTL breakers, (circuit tandem limiting), the difference will be a foot on the breaker to limit if and where it can be installed on the buss in the panel.

Non-CTL breakers are normally labeled for replacement use only.

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