0387390509

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Part Status:	Active
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Terminal blocks and barrier blocks have a similar purpose, although their varieties differ. Terminal blocks are used to connect two leads or wires and protect them from stress and corrosion. Barrier blocks are designed to separate electrical circuits and protect against short circuits.Terminal blocks come in a variety of styles, including screw- type, wire-wrap, plug-in, and have a variety of features such as voltage ratings, grounding wire connections, and circuit protection. Terminal blocks provide a secure connection for wires and reduce the number of strip- and tin-splices required in a wiring job.Barrier blocks have a similar function as terminal blocks, but they are used to separate circuits or components from each other. Barrier blocks usually consist of two rows of terminals and are sold in strips, blocks, or segmented circuits. There are several types of barrier blocks, including: spring-clamp blocks with screw-clamps, terminal posts with insulation clamps and safety posts with barriers. The latter type is especially popular because it has the added protection of both an insulation and barrier feature.Most barrier blocks have a common terminal arrangement. Each block has two rows of terminals, one row for the common terminal and one row for the separate circuit. The common terminal connects each block of the circuit, while the separate circuit connects the individual circuit elements. Each block also has a safety terminal of one ground and one common. This helps to prevent accidental contact with one of the terminals, increasing safety and reliability.Most barrier blocks also come with a range of accessories such as cross-connects, shorting bars, voltage and current taps, etc., for easier connection and insulation of the circuits. However, there are a few exceptions that do not have the common terminal. For instance, barrier blocks that have just two terminals are used in DC applications that don\'t require a common terminal. Similarly, some specialized types of barrier blocks can be used for both AC and DC applications.The working principle for both terminal blocks and barrier blocks is the same. In both cases, a conductor is joined to another conductor via a metal terminal such as a steel clip or spring-load post. The terminal is separated from the other conductor by an insulating material that is usually made of plastic or rubber. This insulation helps protect against accidental contact between the two conductors. When the terminals are connected, an electrical connection is formed.Terminal and barrier blocks are used in a wide variety of applications, from industrial control panels to audio equipment. In industries such as manufacturing, they are used to facilitate the safe connection of electrical devices, including motors, pumps, wires, bundles, and more. They are also used in commercial and residential construction to connect circuits or other components such as lights, switches, circuit breakers, and so on.

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