11102015

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11102015 Application Field and Working Principle

Terminal blocks, also known as terminal boards or strips, are used to secure individual electrical wires. They provide convenient connections to secure circuits and equipment while ensuring that individual wires don’t come in contact with each other, which can cause electrical shorts. This reduced risk of short circuiting leads to better safe operation. To help secure these connections, terminal blocks are available with various features such as insulation, strain relief, color coding, and wire ferrule.

Types of Terminal Blocks

There are two types of terminal blocks: pluggable and non-pluggable. Pluggable terminal blocks use a spring-loaded system to release connections and ensure a secure fit. Non-pluggable terminal blocks typically use screws and bolts to secure the connections. They’re often used in industrial applications where additional security is needed.

Benefits of Terminal Blocks

Terminal blocks offer several benefits. Their connection system allows for quick and easy wiring changes, while the simple configuration ensures one wire doesn’t touch another. This safety precaution eliminates the risk of electrical short circuits, which can result in major damage to your equipment. In addition, terminal blocks are typically mounted to a main panel, providing easier access to individual wires, making repairs or upgrades much simpler.

Terminal Blocks Accessories

Terminal blocks may be used on their own, or may be supplemented with accessories. These accessories help secure wires, which adds an additional layer of stability. Common accessories include wire ferrule, flexible clamping, strain relief, and more.

Wire Ferrules

Wire ferrule is a type of terminal block accessory most commonly used in applications with exposed conductors such as electronics and lighting systems. The ferrule attaches to the end of the terminal block and inserts into the stripped end of the conductor. This provides extra strain relief and ensures that the wire doesn’t come in contact with other openings or components. Additionally, it helps secure the wire to the terminal block and prevents movement of the strands.

Wire ferrule is ideal for applications where repetitive wire connections are required. The terminal block connection is secured and stays in place, reducing the likelihood of loose connections. This ensures trouble-free operation and reliable connections.

Working Principle of a Wire Ferrule

A wire ferrule is a hollow, cylindrical metal tube that is crimped into place. It helps secure connections by providing physical contact and compressing the spade. The wire is inserted into the ferrule, and the end of the ferrule crimped onto the terminal block for a secure connection. The compression of the ferrule ensures that no other connection can be made or removed from the same terminal block. The crimp also protects against the pulling or tugging of the wire, helping to decrease the chance of failure.

Wire ferrule is easy to install and use. They’re available in different sizes, and their simple design eliminates the need for specialized tools. Additionally, they’re highly reliable and can withstand extreme temperatures and vibrations.

Conclusion

Terminal blocks provide essential protection from electrical short circuits, while wire ferrule offers additional protection. Wire ferrule helps secure a wire to a terminal block by providing physical contact and compression, ensuring that no other connection can be made to the same terminal block. This makes wire ferrule ideal for applications where repetitive wire connections are required. Thanks to its easy installation and operation, wire ferrule is a reliable and cost-effective solution for a variety of wiring applications.

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