1856126

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Terminal Blocks - Wire to Board

Terminal blocks, commonly known as wire to board connectors, are commonly used in all areas of industrial and domestic applications. They are designed to provide an electrical connection between a wire conductor and board mounting. Terminal blocks come in a variety of types, such as Screwless, Screw-clamp, spring-wire, Insulated and Non-insulated, etc. terminal blocks provide economical, reliable electrical connections and outdon’t-soldering direct to boards.

1856126 Application Field and Working Principle

Terminal blocks/Wire to Board connectors are specifically designed for the automotive, industrial control, power, HVAC, electrical, and telecom industries. Applications range from the electronics interfacing in industrial machines to the basics of safely supplying a circuit breaker for a device. They have been widely used in a range of automation, control, and instrumentation applications that require secure connection, grounding and power distribution.

The working principle of terminal blocks is quite simple. At the bottom of the terminal block there are two clamping points, a screw and a spring. When the terminal block is connected to the board, the wire is pushed against the spring clamping point and the screw is tightened to complete the electrical connection. This type of connection is commonly known as ‘wire to board’. Depending on the type of terminal block, the wire may be clamped before or after it has been inserted into the terminal block.

The basic functions of terminal blocks are to secure and terminate wires or cables, breaking or bridging the circuit. By being wired into a terminal block, the current can be transferred from a conductive material, such as a wire or cable, to a board which it is connected to. This allows the electrical current to travel along the wires, through the terminal block, and to a specific device. By breaking or bridging the current, the circuit can be changed, allowing more versatile applications.

Two types of terminal blocks, screwless and screw-clamp, can be used for a variety of applications. A screwless terminal block is designed for easy installation and has an adjustable clamp that is pre-sized to the size of the wire. The screw-clamp type provides a secure connection with screws that can also be adjusted to suit the wire diameter. Both types are widely used in many different applications.

Terminal blocks are designed for safety, reliability, cost effectiveness, and fast installation and connections. They are used in many different industries and provide a secure and reliable connection for a variety of applications.

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