ELFR05190

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ELFR05190 Terminal Blocks - Headers, Plugs and Sockets Application Field and Working Principle

Terminal blocks – headers, plugs and sockets are essential for basic electrical wiring and control systems. Examples of applications include power distribution, instrumentation, alarms and domestic wiring systems. The ELFR05190 is a high-performance system for terminal blocks specifically designed by the Siemens corporation, combining maximum contact safety and simple installation with the highest possible reliability.

What is a Terminal Block?

A terminal block is an electrical connection point designed to connect wires or cables together. It consists of two parts typically made from metal: the header and the plug or socket, and is surrounded by insulation to protect the wiring.

Types of Terminal Block

Terminal blocks come in a range of materials, forms and functions. They can be broadly divided into two types: those intended for use in the higher voltage ranges (1000 to 3000 volts AC) and those for use with low voltage applications (less than 1000 volts).The most common types of terminal blocks are:- Spring clip Terminal Flange- Clamp Type Plug and Socket- Plug Shunted Socket- Push-in Terminals- Screw Terminals- Fencing Type Terminal blocks- Ring Terminals

ELFR05190 Application Field

The ELFR05190 is suitable for a wide range of low voltage applications including instrumentation and control in industry, automation in buildings and industrial infrastructure, safety systems, fire alarms and communication systems. It can be used in both industrial and domestic settings providing a safe and reliable connection for signal and power connections.

ELFR05190 Working Principle

The terminal block of the ELFR05190 consists of a plug and socket designed to connect two wires together. The plug and socket are connected by an insulated plastic connector, usually insulated with polychloroprene. The connection pins are usually steel covered with a thin layer of insulating oxide (typically aluminum or tin oxide).The contact safety of the ELFR05190 is ensured by spring loaded pins located in the plug and socket. When the plug is inserted into the socket, the pins are forced down, creating an electrical connection. The pins are spring loaded to ensure that there is a permanent connection even if the plug and socket are disconnected and re-connected.The plug and socket can be re-adjusted in order to compensate for displacement due to external forces, such as vibration and shock. This ensures that there is always a secure connection even when the system is subject to external stresses.

Conclusion

The ELFR05190 is a highly reliable and safe terminal block from Siemens designed for low voltage applications. Its robust design means it is able to withstand external stress and is suitable for industrial and domestic applications. The spring loaded pins ensure a secure and reliable connection between two wires, ensuring contact safety.

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