Circuit breaker handle interlock arrangement
AssigneeGeneral Electric Company
InventorsRoger N. Castonguay, Robert A. Morris
Life of this patent
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Abstract
A handle interlock arrangement is attached to the top surface of a manually operable circuit breaker operating handle to prevent the handle from being locked in its "OFF" position when the circuit breaker contacts are actually in their closed condition. A handle cover is hingeably attached to the circuit breaker cover and includes a pair of apertures arranged through the opposite sidewalls of the cover. The location of the apertures relative to the circuit breaker operating handle prevents the insertion of a padlock through the apertures when the circuit breaker operating handle is in its "ON" position.
Claims16
A circuit breaker operating handle interlock arrangement comprising:
- a support base adapted to be attached to a top surface of a molded case circuit breaker proximate a circuit breaker operating handle having ON and OFF positions on said top surface;
- a circuit breaker operating handle enclosure consisting of a top having a pair of depending sides arranged for preventing access to said operating handle, said handle enclosure being pivotally attached to said support base;
- and
- a locking hasp upstanding from said support base and aligned with a pair of opposing apertures, one through each of said sides, said apertures being arranged on an end of said handle enclosure proximate said ON position.
Dependencies are inferred from the claim text.