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Terminal Blocks - Panel Mount

Terminal blocks are essential components for routing electrical signals in a wide range of application fields and they have several variations based on their application and working principle. In this article, we will discuss a specific type of terminal block namely the panel-mounting type, their application field and working principle.

Introduction to Panel Mount Terminal Blocks

Panel mount terminal blocks are essentially screw-less snap-in terminal blocks which are used for direct mounting onto a panel or PCB. This type of terminal block is designed to give space saving, secure and reliable connections and it is also designed with an IP67 sealing capability making it suitable for a wide range of applications even in harsh environments. Panel mounting terminal blocks come in various shapes and designs such as the T-style, W-style and Z-style terminal blocks.

Application Field for Panel Mount Terminal Blocks

Panel mount terminal blocks are used in a wide range of applications ranging from industrial automation to LED lighting and more. These terminal blocks are typically used to route signals not only within a system but also between systems. The T-style, W-style and Z-style terminal blocks offer varying connection methods such as screw-tightening, screwing or soldering and hence providing connection flexibility for a wide range of applications. Panel mount terminal blocks are also much safer than board-to-board or point-to-point connections due to their space saving nature, robustness and ability to move current efficiently.

Working Principle of Panel Mount Terminal Blocks

Panel mount terminal blocks typically comprise of moulded plastic housing, terminals and screws or snap-locks. The contact terminal comprises of a metal strip surrounded by plastisol insulation material which is then placed inside the housing. When the screw or snap-lock is tightened, the metal strip inside the contact terminal gets automatically compressed against the housing, forming a secure electrical connection. This secure electrical connection is further improved due to the contact surface area of both the housing and the metal strip inside the contact terminal. This connection remains reliable and secure even after repeated insertion of conductors.

Apart from providing reliable and secure connections, panel mount terminal blocks also offer convenient installation and removal due to their screw-less or snap fit design. In particular, the snap-lock design does not require additional tools which helps reduce the time and cost of installation. Also, these terminal blocks can be conveniently rearranged or replaced in case of any system changes due to their snap-lock design.

Conclusion

Panel mount terminal blocks are extremely useful for a wide range of applications and they provide a secure electrical connection while offering convenient installation and removal. They are designed with robust construction and IP67 seal protection making them suitable even for harsh environment applications. Hence, panel mount terminal blocks are essential elements for numerous industrial application fields.

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