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Terminal blocks, also known as terminal boards or strips, provide the connection points that allow electrical systems and circuits to be linked together. They are integral components of the wiring harness, and are available in various configurations depending on the specific needs of the application. Headers, plugs and sockets are three common types of Terminal Blocks.

Headers

Headers are specialized Terminal Blocks with screw or press connections that provide a connection for wires and other electrical components. They are typically mounted directly onto a printed circuit board and provide a convenient method for connecting the board to other wiring and power sources. They provide superior contact connectivity with longer life expectancy and reliability.

Plugs

A plug is a specialized terminal block that is designed to be inserted into a wall outlet or power source, and provide an electrical connection between the power source and the connected wiring. Plugs can also be used to provide additional power to a circuit or device, and can be configured to meet specific voltage and amperage requirements.

Sockets

Sockets are specialized terminal blocks used to provide a secure connection between wiring and power sources. They are designed with a receptacle that fits onto a plug in order to provide a secure connection and are commonly used for external devices such as switches and thermostats. Sockets are available in a variety of voltage and amperage ratings to provide the needed power for the specific application.

Terminal Blocks, headers, plugs and sockets are all integral components of most electrical systems, and are used to provide the connection between wiring and the power source. They provide superior connectivity with longer life expectancy and reliability while also providing the convenient ability to quickly connect and disconnect wiring and components. As a result, these Terminal Blocks can be found in a wide variety of applications in a multitude of industries including automotive, industrial, aerospace, and medical.