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US 2003/0169548 A1Published application
Breaker failure annunciator system
AssigneeEaton Corporation
InventorsRobert J. Clarey, Robert T. Elms
Life of this patent
Estimating the term…
Abstract
An annunciation system which will detect the majority of failed breakers and indicate to the consumer when a breaker needs to be replaced, but does not put the consumer in an emergency situation where critical loads have lost power. The annunication system provides a visible and audible indication of the failure of a breaker to trip either as a result of fault current conditions or a test of a ground fault or arc fault circuit.
Claims14
A circuit interrupter comprising:
- a housing:
- separable contacts mounted in said housing;
- an operating mechanism for opening said separable contacts when actuated;
- trip means for actuating said operating mechanism in response to predetermined current conditions, said trip means having an electrical output when activated;
- an annunciator connected to said output from said trip means and providing an alarm when said operating mechanism fails to open said separable contacts when actuated by said trip means, to alert a user of the failed actuation.
2 more elements
Dependencies are inferred from the claim text.