Abstract: An electrical distribution apparatus includes a bus bar assembly including a first surface. The electrical distribution apparatus also includes a backplane including a second surface. The electrical distribution apparatus further includes a plurality of engagement features and a plurality of openings for receiving the plurality of engagement features. The plurality of engagement features couple the bus bar assembly to the backplane. The plurality of engagement features extend from at least one of the first surface and the second surface. The plurality of openings are defined by at least one of the first surface and the second surface.

Abstract: An electrical distribution apparatus includes a backplane for supporting a plurality of electrical devices, a bus bar assembly coupled to the backplane, and a frame that supports the backplane. The electrical distribution apparatus also includes at least one positioning member that facilitates positioning the backplane relative to the frame. The at least one positioning member at least partially supports the backplane such that the backplane is positionable between a first position and a second position. The backplane contacts the frame in the second position.

Abstract: An electrical distribution apparatus includes a bus bar assembly including a first surface. The electrical distribution apparatus also includes a backplane including a second surface. The electrical distribution apparatus further includes a plurality of engagement features and a plurality of openings for receiving the plurality of engagement features. The plurality of engagement features couple the bus bar assembly to the backplane. The plurality of engagement features extend from at least one of the first surface and the second surface. The plurality of openings are defined by at least one of the first surface and the second surface.

Abstract: An electrical distribution apparatus includes a backplane for supporting a plurality of electrical devices, a bus bar assembly coupled to the backplane, and a frame that supports the backplane. The electrical distribution apparatus also includes at least one positioning member that facilitates positioning the backplane relative to the frame. The at least one positioning member at least partially supports the backplane such that the backplane is positionable between a first position and a second position. The backplane contacts the frame in the second position.

Abstract: A circuit breaker having a housing, a pair of separable contacts, a current sensor strap in electrical communication with the contacts, an operating mechanism for operating the contacts, an electronic trip unit in operable communication with the sensor strap and the mechanism, and a current transformer is disclosed. The current transformer has a mixed material magnetic core having a first layer of material having a relatively high magnetic permeability, and a second layer of material having a relatively low magnetic permeability abutting the first layer of material. The core has a profile with an opening therethrough for accepting the sensor strap. A signal generator is disposed proximate the core to provide an output signal representative of a magnetic flux associated with the sensor strap. The mixed material magnetic core exhibits a dynamic range greater than a dynamic range of a similar shaped magnetic core having only one material of the first layer of material and the second layer of material.

Abstract: A method for restricting travel of a moving contact in a lighting contactor is provided. The lighting contactor includes the moving contact and a contact carrier. The method includes the steps of providing a spacer, and a biasing member and positioning the biasing member though the spacer. The method also includes installing the biasing member and the spacer in the contact carrier.

Abstract: A method for restricting travel of a moving contact in a lighting contactor is provided. The lighting contactor includes the moving contact and a contact carrier. The method includes the steps of providing a spacer, and a biasing member and positioning the biasing member though the spacer. The method also includes installing the biasing member and the spacer in the contact carrier.

Abstract: A service entrance barrier for a load center that includes a housing and a service entrance having at least one branch fed main breaker electrically connected to branch feed lines. The service entrance barrier is securable to the load center housing to prevent human contact with electrically energized parts located in the service entrance of the load center. The service entrance barrier includes a main body portion, at least one mounting leg extending from the main body portion, a protection tab extending from said main body portion, and a non-conductive sleeve encompassing the protection tab.

Abstract: In an exemplary embodiment, the apparatus includes a first station (32), a second station (34), and a third station (36). At the first station (32), raw magnetic material strip (24) is de-reeled from a stock reel (40) and a predetermined amount of the raw magnetic material strip (24) is fed and measured as the magnetic material strip (24) is transported to a winding mechanism (60). In the winding mechanism (60), the magnetic material strip (24) is continuously wound in and through an opening (22) formed in a bobbin (12) to form a wound transformer core. Preferably, a pair of bobbins (12,14) are used and the magnetic material strip (24) is continuously wound through openings (22) formed in each of the bobbins (12,14). After winding the predetermined amount of magnetic material strip (24) through the bobbins (12,14), the magnetic material strip (24) is cut at a predetermined measured location to produce a trailing edge (26) of material (24).

Abstract: A magnetic material is continuously wound in and through openings formed in a pair of bobbins to form a wound core of an electrical transformer by inserting the pair of bobbins into a cavity formed in a winding fixture, feeding the magnetic material into the winding fixture so that the magnetic material is fed into a circular winding action such that a leading edge of the magnetic material is continuously threaded into the openings formed in the pair of bobbins to form a wound transformer core, cutting the magnetic material to form a trailing edge, securing the trailing edge to underlying wound transformer core material, and shaping the wound transformer core to a predetermined shape.

Abstract: An apparatus for winding the magnetic core of an electronic transformer about a pre-formed wire coil, the apparatus comprising a first member, a second member, and a locking device for aligning and fastening said first member to said second member. The first member and the second member each further comprising a winding member, a first flange disposed at a first end of said winding member, and a second flange disposed at a second end of the winding member. A method of continuously winding a magnetic material onto a bobbin assembly to form a wound core of an electrical transformer is provided and comprises forming a bobbin assembly about a pre-formed wire coil, fixing a leading edge of the magnet material to the bobbin assembly, and rotating said bobbin assembly about the pre-formed wire coil to wind the magnetic material onto the bobbin assembly.

Abstract: In an exemplary embodiment of the invention, a calibration arrangement and process for use in a circuit protective device are presented. An exemplary calibration assembly for use in the calibration process of the present invention includes a split clamp arm having a first opening for receiving and holding a calibration pin and a second opening for receiving an actuator key. A portion of the split clamp arm is divided into a first arm and a second arm by a channel which extends from a first end of the split clamp arm through the first opening and communicates with the second opening. The split clamp arm is opened by inserting the actuator key through the second opening and because of the preferred oblong or rectangular shape of the second opening of the split clamp arm, rotation of the actuator key therein forces the members forming the first opening of the split clamp arm apart from one another.

Abstract: A contact assembly for use in alkaline electric cells, includes a inner metal disk and an outer metal disk which engage one another coaxially when embedded in a cell end cover to form a cell anode. The inner metal disk has a neck-like cylindrical projection having an axial bore, the projection extending inwardly of the cell. One end of a collector rod within the cell is seated within the bore of the projection so as to remain in electrical contact with the inner periphery of the projection and, thus, with the anode formed by the two metal disks, in the event the anode is caused to move outwardly of the cell in response to gas pressure developed within the cell.