1084780000 Connectors, Interconnects

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Terminal blocks are nicknamed Din Rail because they can easily be hooked onto a special type of mounting rail, for example a type TH35 (35 mm wide) as developed by the German company Phoenix Contact.

Terminal blocks come in a variety of styles, sizes, and brands to suit multiple applications. This includes, but is not limited to, spring clamp, screw connections, multi-tier blocks, and more. This article will focus on the major types, namely Din Rail, Channel, and their applications in industrial, commercial, and other uses.

Din Rail Terminal Blocks

A Din Rail Terminal Block is a type of terminal block designed to easily mount onto a standard TH35 mounting rail. These bases typically have a single row for a wiring connection. Each wire can be individually connected to the rail via a lug, encasing the wire for enhanced safety and reliability. Din Rail terminal blocks can be used in a variety of non-hazardous and hazardous environments, making them well-suited for use in industrial settings.

One of the main advantages of utilizing a Din Rail terminal block is the ease of connecting wire terminations. This system reduces the risk of over-tightening the connection. Additionally, by clamping the wire, any risk of loose connections is reduced. This feature is especially beneficial in areas where vibration is a factor.

Another plus of Din Rail terminal blocks is that additional features, such as potentiometer terminal strips and alarm circuits, can be conveniently mounted onto the mounting rail. This further enhances ease of use and offers a space-saving solution when dealing with a large amount of wires.

Channel Terminal Blocks

Channel Terminal Blocks are similar to Din Rail terminal blocks in terms of size and design, but they come with the addition of a dedicated “channel” that allows wires to be passed through. This channel also allows for the convenient mounting of additional features, such as fuses, LEDs, and jumpers, among others. This type of terminal block offers a more secure connection than Din Rail terminal blocks, as the wire is clamped and the termination is insulated within the block.

While being slightly larger than Din Rail terminal blocks, Channel Terminal Blocks are ideal for installations that require higher current ratings and a larger variety of features. Additionally, these channel terminals are highly suitable for use in hazardous areas since no exposed connections exist.

1084780000 Application Fields and Working Principles

Terminal blocks such as Din Rail and Channel are used in a variety of industries, from commercial and technical applications to medical and automotive. For example, they are commonly used in industrial settings, such as manufacturing and process control, to connect power, control, and communication cables. They are also suitable for use in automation and other technical applications, as well as in marine environments.

In terms of working principles, terminal blocks are relatively straightforward as they simply involve a “block” with multiple contacts. The terminals are designed to securely hold a conductor in place and are generally fixed to the mounting rail with a screw or other mechanical fastener. While their use varies depending on the application, they all adhere to the same basic principles regarding wire and conductor connection.

In conclusion, Din Rail and Channel terminal blocks are both straightforward and versatile pieces of hardware that are essential to a variety of industrial and commercial settings. Their ability to securely house a conductor offers greater safety and protection in hazardous environments, while also allowing for easy installation and quick connection. This makes them an excellent option for a variety ofi t demanding applications.

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