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how do you test a circuit breaker to find out if it is good or bad ?
this is a Westinghouse 15 amp panel circuit breaker.
I have 3 breakers in a row. there is a problem, none of them trip. the main breaker does trip. when it is reset one of the 3 buzzes for a few seconds until the main trips again.
If a breaker doesn't trip when you flip it, replace it immediately! It is defective or worn out. They do go bad. When it is 'buzzing', it is heating up. Just because it doesn't trip, doesn't mean it is OK. It is very simple to replace a breaker. Turn off your main power supply. Remove panel cover. Use a voltage meter to check to see if you have successfully turned off the power by setting meter to '250V'. Now, touch one connector to where the wire goes to the breaker and the other to the big aluminum grounding block (that's where a bunch of wires go to together!). No voltage! Good. Remove the screw holding the wire on the breaker. Mark it with tape as to which one it is (1, 2, 3) Now, unscrew the screw holding the breaker in place. Some types have two (older ones). There are a few different types of breakers in use (SquareD, GE, etc.) Go to your hardware store and get the correct replacement. Merely replace it the same way as you removed it. Having only three breakers, I would go ahead and replace all three (only 6-7 bux each).
Good Luck!
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Westinghouse Circuit Breaker PCCG33000F US $24,000.00
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PCCA33000 Westinghouse Insulated Case Circuit Breaker 3P 600V 3000A PCCA33000F US $18,500.00
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