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Terminal Blocks, also known as Terminal Strip, Barrier strip or Barrier Block, are a form of electrical connection. It is a type of electrical connector with multiple terminals used to connect several wires together. It is used for a variety of applications where two or more wires must be connected. This article will discuss the application field and working principle of Terminal Blocks - Barrier Blocks.

Application Field of Terminal Blocks - Barrier Blocks

Terminal Blocks - Barrier Blocks are widely used in audio, video, telecommunications, electrical, machinery, automobiles, and other fields for wire connection. In home, business, and industrial applications, terminal blocks are used to provide reliable, efficient, and cost-effective connections for signals, power, and ground loops. They are commonly used in the following fields:

• Electronic and electrical engineering products, such as Power Supply, Control Boards, Motors, Probes, Processors, Transformers, and Solid State Relays.
• Automation and robotics, such as servo motors, robotic arms, industrial PCs, and signal connections.
• Signal transmission, such as in the telecommunications industry and transmission of data or signals over long distances.
• Measurement, such as thermocouples and thermistors.
• Power distribution, such as connecting a circuit breaker, relay, or an in-line fuse to a power strip.
• Distributed I/O, such as monitoring systems, data acquisition sensors, vending machines, PLCs, and distributed systems.

In addition to these, Terminal Blocks - Barrier Blocks are also used for wiring connections, control and signal connections, ground connections, and daisy-chain connections.

Working Principle of Terminal Blocks - Barrier Blocks

Terminal Blocks - Barrier Blocks are, in essence, a group of contacts that are wired together. They are designed to connect two or more wires together. Generally, a terminal block consists of a conductive plate, a contact block, and a terminal screw. The conductive plate is typically made of metal or plastic and acts as an electrical path between two wires. The contact block is typically made of metal and serves as an electrical bridge between two wires.

The terminal screw is used to secure the contact block onto the conductive plate. The screw has a thread that engages the contact block and compresses it against the conductive plate. This compresses the contact block against the conductive plate and establishes an electrical connection. The contact block also helps to maintain a consistent resistance between the two wires, preventing any voltage or current fluctuations.

To ensure a secure and reliable connection, the contact block and conductive plate must both be of the same material. The contact block should have a material composition that is compatible with the conductive plate. Additionally, the contacts of the contact block and conductive plate must make positive contact with each other.

Terminal Blocks - Barrier Blocks are available in a variety of sizes and materials, making them well suited for a wide range of applications. They are designed to handle low-voltage and low-power applications, as well as higher-voltage and higher-power applications. The blocks can be easily mounted and are suitable for both industrial and commercial applications.

Conclusion

Terminal Blocks - Barrier Blocks are versatile and reliable connectors used in a wide range of applications. They are used to reliably and efficiently connect multiple wires, signals, power, and ground loops. They consist of a conductive plate, a contact block, and a terminal screw, and are available in a variety of sizes and materials. They are designed to handle low and high voltage and power applications, and are suitable for both industrial and commercial uses.