Terminal block
A terminal block is a device that provides or allows an electrical connection between two electrical elements or components. Electrical terminal blocks (terminal junction blocks, junction blocks, or barrier blocks) are well known and widely used in commerce as devices for safely, conveniently and efficiently connecting together one or more pairs of wires or cables. Terminal blocks have long been widely used in electrical utilities, serving as electrical connectors for electrical current power supplies and the like used in relaying, intercommunication and other signalling within power grids. Terminal blocks also have been used as connectors for relatively low voltage electrical power. Terminal blocks are used in a number of electronic systems for connecting wires, conduit, jumpers, shunts, board-to-board cables, and/or other such components to a printed circuit board. Terminal blocks are typically used in the telecommunications industry to connect multiple wire pairs, for example, to connect telephone service wires to telephone company distribution cables. Specifically, an electrical terminal block used in the telecommunications industry typically includes a plurality of interconnected terminal pairs which can be used to connect each individual distribution cable wire on the exchange side to a corresponding individual service wire on the service side. Such terminal blocks may provide interconnections between cables from the central office and subscriber cables or interconnections between a central office cable and a multi-pair cable servicing a local area such as a housing subdivision. A terminal block arrangement includes a pair of electrical terminals arranged in spaced relation on a terminal block body, a conductive terminal bus bar electrically connected between the terminals, and an overvoltage protective component removably connected with the terminal block body. In certain designs, the wire or conduit can be secured to the terminal block using a screw, spring clamp, quick connect, insulation displacement connection (IDC) terminal, or other suitable fastening means.
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