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Terminal blocks are valuable components in a wide range of applications. These kinds of blocks, also known as Headers, Plugs and Sockets, are well known among many industries due to its strong abiltiy to provide reliable circuit completions quickly and economically. In general, a terminal block is made up of two parts which mated to each other for electrical connections.

The most common type of terminal blocks are Headers, Plugs and Sockets. A header is the portion of the connector that is affixed to a circuit board. It is the interface between the circuit board and the plug. The header consists of a plastic housing containing terminals to which the wires can be connected. The header also has a retainer clip and release levers to secure the plug in the correct position. A plug is the mating part of a connector, which fits over the header. The plug has four or more metal blades which make contact with the terminals inside the header. Finally, the socket is the third component of a connector. It consists of a metal housing which contains several contact points which mate with the plugs blades. The sockets are typically secured to the board by fasteners and can be easily removed for rework.

The main advantages of using terminal blocks - headers, plugs and sockets is their high reliability, durability and cost efficiency. The terminal blocks are secure and robust compared to other kinds of connection systems. As a result, they ensure the integrity of the electrical connection over time. Moreover, the convenience of removing these connections easily make it very popular among users.

The working principle of terminal blocks is simple. The plug fits over the header, which is screwed or bolted to the circuit board. The headers provide secure support for the plug so that it remains in place. Then, the wires are placed through holes or slits in the plug, which make contact with the terminals in the header. Once the plug is inserted, the terminals make contact and create a reliable electrical connection. The socket then fits over the header and creates a secure and reliable connection for the plug.

In conclusion, terminal blocks - headers, plugs and sockets are flexible and reliable components for making electrical connections. Their durability and convenience make them a popular choice for many industrial applications. Furthermore, their cost efficiency is an added benefit. We can see why these kind of blocks are used in a wide range of applications such as telecommunications, consumer electronics, factory automation and industrial wiring.

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