Terminal Blocks - Headers, Plugs and Sockets are associated with 1984374 application field and working principle. Generally, a terminal block is a type of electrical connection that use screw, spring or lever technology and a protected chamber to link two or more electrical conductors that need to be electrically and physically joined together.Terminal blocks are usually used to connect incoming or outgoing wires without having to solder the wires\' ends, offering a quick, protected and effective connection solution. With a smaller size, they are easy to be mounted together to facilitate multiple plug-in connection, making these terminal blocks used widely in a variety of applications.Well, Terminal blocks - headers, plugs and sockets are the most popular way in the production line for connecting different power and signal lines in the industry of automation. For instance, the terminal block can be used to make a connection between a PLC unit and various sensors and actuators in an automated assembly line.In addition, Terminal blocks often accept a wide range of gauge sizes, current and voltage ratings, being strong and safe to use with high functionality and reliability even in a space-saving, congested place. Generally, the terminal block can effectively and economically connect two or more electrical wires in a stable manner.Moreover, a pluggable terminal block is a type of the terminal block that looks like a plug with several pins and levers. The pluggable type terminal block can be connected instances, enabling quick and easy assembly without needing tools. This is extensively used in many electronic installed workpieces, like cabinet, board, heat exchanger, battery or PLC control cabinet, being the most suitable for smart home applications and other types, such as those used in automotive applications.Lastly, a header terminal block, also known as an edge connector, is a connector used to join on the surface of a printed circuit board, creating an electrical connection between the board and other circuits. It is an effective solution for combining different electric currents that require a surface mount or through-hole mount on a PCB, providing economical and convenient interconnnection for various types of applications, like data and signal transmission.In conclusion, Terminal Blocks - Headers, Plugs and Sockets are remarkably functional and reliable, which could be used in 1984374 application fields. Despite the similarities among the types of terminal block, each one of them can help meet the need of transmission requirement from a printed circuit board or a control cabinet depending on its working principle.