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Is it common for a 200A JG type breaker to make a buzzing noise? It is buzzing under certain loads.

Issue:
Is it common for a 200A JG type breaker to make a buzzing noise?  It is buzzing under certain loads.

Product Line:
All molded case breakers.

Environment:

Cause:

Resolution:
Buzzing can be caused by micro-movements of ferrous materials inside the breaker due to the alternating magnetic field. Refer to the operational noise bulletin 0600DB0302.


CTA-ID : 2031761
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