Is there any way to test a circuit breaker?

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Old 04-30-00, 10:47 AM
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Is it possible to test a 200 amp main circuit breaker to see if it is defective?
 
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Old 10-03-02, 07:41 PM
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Generally not. It is not usually cost effective to test a 200A molded case breaker. Although it can be done, and is done in an industrial/commercial setting by vendors that are certified by this organization. http://www.netaworld.org/

It is unlikely that a normal, modest, properly sized residential service will exceed the capacity of a 200A main breaker.

What is the symptoms?
 
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Old 12-22-10, 07:07 AM
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The only real test you can do is using a meter, check continuity on both poles to see if one side is not resetting when switching. A basic test is just turning off and on a few times. A bad breaker may not switch correctly and go into "tripped" position. If you are asking about testing under load to see if it can hold up to 80% load etc., no good practical way. Would be costly to have this done.
 
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