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Terminal Blocks - Barrier Blocks

Barrier blocks are terminal blocks which are designed for electrical connection between different points of a circuit. They are widely used in industrial control systems, instrumentation, and robotics for many applications. Barrier blocks offer various advantages over traditional cable-connection methods like soldering, crimping, or screw-down lugs.

Advantages

• Easy installation: Barrier blocks are pre-wired and ready to install. This makes them a popular option for repetitive connection tasks.
• Durability and reliability: Barrier blocks have a rating of up to 50V/5A, and are extremely durable and reliable.
• Versatile connection options: Barrier blocks are available in multiple contact types and sizes. This allows for versatile application options.
• Cost efficiency: Barrier blocks are cheaper than traditional wire-connection methods.
• Safe connection: Barrier blocks provide a highly secure connection with secure terminal clamps and/or screws. This ensures safe electrical connections between two points.
• Compact and organized: Barrier blocks are designed to provide a compact and organized electrical connection solution.

Application Field

Barrier blocks are most often used in industrial control systems, instrumentation, and robotics. In industrial control systems, they are used for control and protection of high power motor circuits, wiring of bi-directional logic, data transmitting from one device to another, and as part of PLC(Programmable Logic Controllers). In instrumentation, they are used to control precise data measurement, register signals, and transduce voltages. In robotics, they are used to transmit digital signals of speed, select signals, activate specific mechanical actions, and perform logic operations.

Working Principle

Barrier blocks feature spring-loaded, male-to-female pin terminals on opposing sides. When a terminal is properly inserted into a female terminal, the pressure of the spring ensures the continuity of the electrical connection. Since the terminals are insulated and there is no direct contact between them, the risk of unwanted electrical sparks is significantly reduced. Additionally, logs or clips can be used to further secure the connection.

Conclusion

Barrier blocks are terminal blocks which are designed to provide a secure, reliable, and cost effective electrical connection between multiple circuits. They are widely used in industrial control systems, instrumentation, and robotics, for their ease of installation, durability, versatility, safety, and cost efficiency. Barrier blocks feature a distinct working principle, where two insulated and spring-loaded pins engage on opposing sides, providing a reliable electrical connection.

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