Patent ID: 6531938
Filing Date: 2003-03-11
Classification: H01H

Abstract:
A motorized module for remote operation of a split case circuit breaker and comprising in combination:a circuit breaker housing including split half sections defining a chamber therebetween, a movable contact in said chamber, a collapsible linkage in said chamber, an armature, a current/voltage sensing device in said chamber and including an electromagnetic sensing coil for moving said armature, said armature being coupled to said collapsible linkage for opening movement of the movable contact lever in response to a predetermined rise in the current/voltage sensed by said coil, a reset toggle pivotably mounted in said chamber and having one end coupled to said collapsible linkage, said toggle having a handle portion projecting through a top opening in said circuit breaker housing for resetting the collapsible linkage, a motorized module housing also having half sections defining a chamber therebetween said half sections defining a housing shape such that a top wall of both said circuit breaker housing and said motorized module housing are of the same geometrical configuration whereby the circuit breaker housing and motorized module housing are adapted to be assembled side by side with one another in a manner to that of the individual circuit breaker housing in a multi pole circuit breaker assembly of split case type circuit breakers, said motorized module chamber including a reversible drive motor, a lead screw, a captive nut adapted to be driven by the lead screw, a pivoted toggle having a portion coupled to said captive nut, and said toggle having a handle portion projecting through a top opening in said motorized module housing top wall, said circuit breaker toggle handle portion sharing a common pivot axis with said motorized module toggle handle so that said motor in said motorized module can operate the toggle in said circuit breaker from a remote location.