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Terminal blocks, which consist of a pair of headers, plugs and sockets, are widely used in electrical and electronic equipment. The assembly is relatively simple and reliable, wide range of applications. In particular, the large number of such applications in industrial control systems and in urban infrastructure equipment.

The typical configuration of the terminal block includes two headers, plugs and sockets. It is easy to assemble and disassemble. When plugged into the sockets, the electrical connection is made between the two headers. This makes it possible to quickly connect and disconnect components in circuit design.

In general, the headers and plugs used in terminal blocks can be divided into two types: industry-standardized products and user-defined products. Industry-standardized components are mostly used in the primary parameter range, including the current range, for example, 0.75-35A; the voltage range, for example, 0-32V; and the pitch design, for example, 3-5mm. On the other hand, user-defined products allow for flexibility in the parameter range. They can be customized to meet the requirements of specific equipment.

The working principle of a terminal block is quite simple. When a plug is inserted into a socket, the pins on the plug fit into the holes in the socket. This creates a physical bond between the two parts, enabling an electrical connection between them.

The application of a terminal block is quite extensive. In the industrial control system, it is widely used. They are mainly used in some analog signal control, PLC switch control, emergency stop system, measurement and control system, etc. It is also used in equipment, including air conditioners and other household appliances. In urban infrastructure, they are also widely used. Such as street lamps, traffic lights, monitoring systems and so on.

Nowadays, the design and manufacture of terminal blocks is more and more professional. Advanced computer design and manufacturing measures can better meet the ever-changing needs of users.

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