Abstract: An electrical system includes an enclosure for housing an electrical device that is capable of being turned on and off. The enclosure includes a door with an operating handle that, when the door is closed, can be used to turn the electrical device on or off. The operating handle is further operable to displace an interlock mechanism for engagement or disengagement to a busway structure and indicate a status of the electrical device as on, off, or tripped.

Abstract: A circuit breaker includes an electrically insulative case and a handle rotatably coupled to the electrically insulative case. The circuit breaker also includes a gear train mechanism. The gear train mechanism includes a drive gear drivingly coupled to the handle and a plurality of pinions engaged with the drive gear. The drive gear is arranged to rotate the plurality of pinions in response to a rotation of the handle. The gear train mechanism also includes a rack engaged with the plurality of pinions. The rack is arranged to translate in response to a rotation of the plurality of pinions.

Abstract: Exemplary embodiments relate to a medium voltage switchgear with interlocking device associated with an actuator drive, which operates a switching element via a mechanical coupling element. The switching drive is movable in two end positions until which the interlocking is active between a freely selectable middle position and a specified end position. In order to keep the interlocking active over a certain range of the actuator travel, the mechanical coupling element includes a force flux element that is rotatable during operation of the drive from OFF to ON. In this way, the region where the interlocking shifts from unlocked to locked can freely be chosen by the shape of the force flux element.

Abstract: Disclosed is a switchboard. The switchboard includes a switchboard case with a built-in circuit breaker, a door mounted on the switchboard case in a hinge structure to be opened or closed and configured to include a door hook including an inclined surface at a front end, an external manipulation handle provided at an outer side of the switchboard case and configured to manually, externally manipulate a switch-on or off operation of the circuit breaker, and a catching member disposed in the switchboard case to be contactable with the inclined surface of the door hook. The catching member rotates by contacting the inclined surface of the door hook according to a closing operation of the door, and a locked state of the door is maintained by catching the door hook on one side corner of the catching member.

Abstract: An improved remote actuator for use with a circuit breaker includes a handle assembly that can be disposed at the exterior of a cabinet and an actuation assembly that is operatively connected with the handle assembly and with the circuit breaker. The remote actuator includes a spring that is connected with a transfer link of the handle assembly and that biases a handle of the handle assembly to either an ON position or an OFF position. The remote actuator includes a fulcrum member on a bracket of the actuation assembly that at least partially overcomes the bias of the spring to facilitate assembly of the remote actuator.

Abstract: A handle operating assembly suitable for use with an electric disconnect switch assembly having a circuit breaker. The handle operating assembly comprises a handle operator extending outward from the electric disconnect switch and movable between an ON and an OFF position and a face plate having a slot therein. The handle operator slidably moves in the slot between the OFF position and the ON position. The face plate mounts to the electric disconnect switch assembly and is positionable between a first position to prevent access to the circuit breaker and a second position to provide access to the circuit breaker. The handle operating assembly provides ease of accessibility to the electrical disconnect switch and ease of assembly.