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Terminal Blocks - Headers, Plugs and Sockets are a very versatile and useful way to connect and protect electrical circuits. A terminal block is essentially a type of electrical connector, which provides a point of connection for electrical wiring. It consists of a base, with various contacts housed in the block, which are used to run multiple circuits at the same time.

• Types of Terminal Blocks
  • Headers – Simple headers are typically used for low voltage, low current applications and are sold either as a strip of individual plugs or pre-assembled in a module. They are available in various shapes and sizes, and are usually labeled with easy to read labels.
  • Plugs – These are larger connectors, which provide a substantial amount of space for connection and are intended for higher current demands. Plugs are available in various sizes, including specialized hexagonal, octagonal and circular designs.
  • Sockets – These are reverse versions of plugs, which are used for low current applications. Sockets are typically sold in long strips, with a ‘male’ signal connection on one end and a ‘female’ signal connection on the other. They can also be pre-assembled in a module.
• Application Field
  • Terminal Blocks - Headers, Plugs and Sockets are suitable for a large variety of applications and can easily be adapted to accommodate different levels and types of electrical current. They can be used on anything from simple gadget projects, to more complex industrial equipment, such as robotic assemblies, medical and telecoms systems.
  • Terminal Blocks - Headers, Plugs and Sockets enable joiners and connectors to be added and removed easily from the overall circuit, allowing for an element of flexibility in the wiring configuration. This makes them perfect for use in prototyping applications, so that multiple circuits can be tried and tested before completion.
  • Terminal Blocks - Headers, Plugs and Sockets are also ideal for use in harsh environments, due to their insulation and galvanic protection, which helps prevent corrosion from humidity and other environmental factors.
• Working Principle
  • The working principle for Terminal Blocks - Headers, Plugs and Sockets is relatively straightforward. In order to make a connection, the correct type of plug connection is clipped into the header, which then creates an electrical connection between the two contacts. This connection can then be secured with a screw, bolt or other suitable fastener.
  • Once the connection is made, the current can freely flow between the two contacts. It is possible to increase the number of contacts, by using multiple plugs in the same header, which will allow multiple circuits to be connected together in parallel. Some header systems also allow circuit breakers to be inserted, which can provide additional protection for the electrical components.

In summary, using Terminal Blocks - Headers, Plugs and Sockets is an incredibly efficient and versatile way to create a connection between electrical components and to protect the circuit from environmental and physical damage. By using the correct plugs for the application, it is possible to create a reliable connection that can easily be modified and secured.

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