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Terminal Blocks - Headers, Plugs and Sockets

Introduction

Terminal Blocks are a type of electrical connector designed to connect two or more electrical wires together with a secure connection. Terminal blocks are available in a variety of configurations including headers, plugs and sockets. These devices are especially useful in applications where space is at a premium, such as in domestic and commercial applications. In addition, terminal blocks provide an efficient and cost-effective solution to a variety of different applications and as such are commonplace in electrical and electronics systems.

Applications of Terminal Blocks

Terminal blocks are typically used in applications where space is at a premium and / or when data and signal transfer are required. Examples of such applications include industrial automation, robotics, telecommunications, instrumentation, process control, medical, and automotive systems. In particular, terminal blocks can be used to connect between cables and equipment, provide a secure connection for electrical power and / or data, and provide efficient and cost-effective solutions to applications that require multiple or specialised connections.

Working Principle of Terminal Blocks

Terminal blocks are designed to provide a secure connection between a set of electric wires or cables. Generally, they may be found in two varieties; screw type connectors and ‘finger safe’ pressure connectors. Screw type connectors provide a secure mechanical connection through the use of a screw mechanism. When the terminal block is connected, the screws clamp down onto the outer sheath of the cable, providing a secure mechanical connection. Pressure connectors are essentially Spring Loaded Terminal Blocks; the spring mechanism within the connector holds the cable in place while the pressure is applied.

Conclusion

Terminal Blocks are a type of electrical connector designed to connect two or more electrical wires together with a secure connection. Terminal blocks are particularly useful in applications where space is at a premium, and are commonly found in industrial automation, robotics, telecommunications, instrumentation, process control, medical, and automotive systems. There are two main varieties of terminal block available; screw type connectors and ‘finger safe’ pressure connectors, with both providing an efficient and cost-effective solution to their respective applications.