A power supply circuit breaking device includes a first connector housing, a second connector housing, a main lock unit locking in a finally fitted state in which the second connector housing is completely fitted to the first connector housing, a sub-lock unit locking in a temporarily fitted state in which a part of the second connector housing is fitted to the first connector housing, a main switch unit switched on in the finally fitted state and the temporarily fitted state, and a sub-switch unit switched on in the finally fitted state and switched off in the temporarily fitted state. The sub-lock unit includes a sub-lock claw formed in the first connecter housing, and an operation portion provided in the second connector housing and having an engaging plate portion engaged with the sub-lock claw in the temporarily fitted state.

A baseplate is attachable to a structure in the vicinity of an electrical power source. Optionally, the baseplate may be shaped so that when attached to the structure, the baseplate lies on at least one edge of an opening. The baseplate may have a plurality of connectors for connecting accessories. In different embodiments, the baseplate or faceplate system (which may be modular) attaches to a junction box, and/or may be installed in an opening for a light switch and/or outlet. The faceplate system may be modular. Optionally, accessories and/or other electrical components may communicate with one another via the base plate. Optionally, accessories and/or other electrical components may share power with one another, via the baseplate. Optionally, the accessories and/or other electrical components may communicate with a remote device.

A baseplate is attachable to a structure in the vicinity of an electrical power source. Optionally, the baseplate may be shaped so that when attached to the structure, the baseplate lies on at least one edge of an opening. The baseplate may have a plurality of connectors for connecting accessories. In different embodiments, the baseplate or faceplate system (which may be modular) attaches to a junction box, and/or may be installed in an opening for a light switch and/or outlet. The faceplate system may be modular. Optionally, accessories and/or other electrical components may communicate with one another via the base plate. Optionally, accessories and/or other electrical components may share power with one another, via the baseplate. Optionally, the accessories and/or other electrical components may communicate with a remote device.

A fused tap for an elbow connector that properly insulates and houses an interruption device or fuse to provide protection on underground distribution power lines. The interruption device is replaceable without the need of replacing the entire assembly. The fused tap provides flexibility in installation for existing and new underground distribution lines and/or feeders.

An add on device assembly for surge arresters used in substation, distribution and transmission applications that provides a means to electrically and mechanically disconnect a surge arrester at the end of life, such that it leaves a physical dimension between electrodes that is able to withstand normal system voltage and at the same time continue to provide surge protection until the arrester is replaced. The assembly contains a spring locking assembly that will lock a line spacing buss in an open position post isolator operation. The resultant gap is set to provide sufficient air insulation for system voltage and at the same sufficient surge protection for the system Basic Insulation Level.

An add on device assembly for surge arresters used in substation, distribution and transmission applications that provides a means to electrically and mechanically disconnect a surge arrester at the end of life, such that it leaves a physical dimension between electrodes that is able to withstand normal system voltage and at the same time continue to provide surge protection until the arrester is replaced. The assembly contains a spring locking assembly that will lock a line spacing buss in an open position post isolator operation. The resultant gap is set to provide sufficient air insulation for system voltage and at the same sufficient surge protection for the system Basic Insulation Level.

An accessory wire retention assembly is for an electrical switching apparatus, such as a circuit breaker. The circuit breaker comprises a housing, separable contacts and an accessory enclosed by the housing, an operating mechanism for opening and closing the separable contacts, and a number of wires adapted to be electrically connected to the accessory. The wires extend from the interior of the housing through an aperture to the exterior. The accessory wire retention assembly includes an insert which cooperates with the housing and to establish a predetermined position of the wires with respect to the accessory and the aperture, and a fastening mechanism which fastens the wires to the insert to maintain the wires in the predetermined position.

A fused tap for an elbow connector that properly insulates and houses an interruption device or fuse to provide protection on underground distribution power lines. The interruption device is replaceable without the need of replacing the entire assembly. The fused tap provides flexibility in installation for existing and new underground distribution lines and/or feeders.

A removable switching element for switching an electric current for an electrical switching device includes a housing; first and second fixed electrical conductors; a mobile electrical conductor that can be moved between a first position, in which the mobile electrical conductor electrically connects the first and second fixed electrical conductors; and a second position, in which the mobile electrical conductor is electrically isolated from the first and second fixed electrical conductors. The housing includes two windows passing therethrough, one being located facing an area of contact between the mobile conductor and the first fixed electrical conductor and the other being located facing an area of contact between the mobile conductor and the second fixed electrical conductor.

A removable switching element for switching an electric current for an electrical switching device includes a housing; first and second fixed electrical conductors; a mobile electrical conductor that can be moved between a first position, in which the mobile electrical conductor electrically connects the first and second fixed electrical conductors; and a second position, in which the mobile electrical conductor is electrically isolated from the first and second fixed electrical conductors. The housing includes two windows passing therethrough, one being located facing an area of contact between the mobile conductor and the first fixed electrical conductor and the other being located facing an area of contact between the mobile conductor and the second fixed electrical conductor.