Methods, systems, devices for a motorized isolation switch including a switch enclosure with a set of fixed insulated floating input line connectors and output load connectors movably fixed to the rear panel, a removable contactor bucket insertable into the isolation switch enclosure with mating movable insulated line terminals and load terminals and a set of insulated circuit interrupters, a motorized rack and pinion assembly connected to a base of the switch enclosure, coupled for moving a contactor pan connectable to the contactor bucket along a stationary rack gear along the base of the switch enclosure between and switch open position and a switch closed position, an insulating grounding block with ground connectors, the contactor bucket with corresponding movable ground terminals to mate with the insulated ground connectors in the switch open position, and ancillary controls for communicating with remotely located controls to electrically control the operation.

An interlock system for a low, medium or high voltage switchgear includes: a compartment; a door; a door handle; and a circuit breaker. The door permits access to an inside of the compartment. The door handle opens and closes the door. The circuit breaker is located in the compartment. The door handle is movable from a closed position to an open position. When the door handle is in the closed position, the door does not to open, and when the door handle is in the open position, the door opens. A movement of the door handle from the closed position to the open position places the circuit breaker in a locked configuration. In the locked configuration the circuit breaker is not operable.

An interlock system for a low, medium or high voltage switchgear includes: a compartment; a door; a door handle; and a circuit breaker. The door permits access to an inside of the compartment. The door handle opens and closes the door. The circuit breaker is located in the compartment. The door handle is movable from a closed position to an open position. When the door handle is in the closed position, the door does not to open, and when the door handle is in the open position, the door opens. A movement of the door handle from the closed position to the open position places the circuit breaker in a locked configuration. In the locked configuration the circuit breaker is not operable.

The present disclosure relates to a grounding device for a circuit breaker, and more specifically, to a circuit breaker having a grounding device which selectively operates according to a truck. The grounding device for a circuit breaker according to an aspect of the present invention comprises: a housing installed in a distribution box or an external box; and a fixed contactor fixed to a ground truck inserted into/withdrawn from the distribution box or the external box; a moving assembly rotatably installed in the housing; a movable contactor which is coupled to and moves together with the moving assembly, and of which one end is connected to ground and the other end is connected to or separated from the fixed contactor; and a stopper assembly which is rotatably installed in the housing and restricts or allows the operation of the moving assembly.

The present disclosure relates to a grounding device for a circuit breaker, and more specifically, to a circuit breaker having a grounding device which selectively operates according to a truck. The grounding device for a circuit breaker according to an aspect of the present invention comprises: a housing installed in a distribution box or an external box; and a fixed contactor fixed to a ground truck inserted into/withdrawn from the distribution box or the external box; a moving assembly rotatably installed in the housing; a movable contactor which is coupled to and moves together with the moving assembly, and of which one end is connected to ground and the other end is connected to or separated from the fixed contactor; and a stopper assembly which is rotatably installed in the housing and restricts or allows the operation of the moving assembly.

An electrical contact assembly includes a frame and an electrically conductive frame contact carried by the frame. A conductive clamp assembly is configured to slide on the electrically conductive frame contact into a contact position and clamp into secure electrical contact with the electrically conductive frame contact. The conductive clamp assembly includes opposing electrical contacts spaced apart a distance to receive the electrically conductive frame contact and slide thereon as the conductive clamp assembly moves into the contact position. A spring assembly is engaged to each electrical contact, and a pivot arm engaged with a respective spring assembly and configured to pivot onto the respective spring assembly to bias the respective spring assembly against the respective electrical contact.

An electrical contact assembly includes a frame and an electrically conductive frame contact carried by the frame. A conductive clamp assembly is configured to slide on the electrically conductive frame contact into a contact position and clamp into secure electrical contact with the electrically conductive frame contact. The conductive clamp assembly includes opposing electrical contacts spaced apart a distance to receive the electrically conductive frame contact and slide thereon as the conductive clamp assembly moves into the contact position. A spring assembly is engaged to each electrical contact, and a pivot arm engaged with a respective spring assembly and configured to pivot onto the respective spring assembly to bias the respective spring assembly against the respective electrical contact.