3076031

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Terminal Blocks - Din Rail, Channel, 3076031 Application Field and Working Principle

Terminal blocks enable the electrical connection of electrical systems subject to rigorous safety regulations, such as those specified in industrial or railway applications, by ensuring specific isolation properties. Nowadays, rail mounted terminal blocks are used most often in electrical distribution and automation installations, satisfying the need of control and protection systems. Rail mounted terminal blocks, generally referred to as din rail terminal blocks, pursue to fulfil multiple application fields and provide robust mechanical performance for the electrical connection with a simple and effective connection system. These din rail mounted terminal blocks, as the 3076031 model, are available in several versions. They are usuallly made of plastic materials, such as polyamide materials, UL94 V0 rated for fire prevention application. Their robust mechanics allow them to be mounted on DIN rails, usable for both low and medium voltage application. The 3076031 model is composed by an insulator part and a contact part, including a spring connector, between which the electrical connection must be established. Its use does not consider the extra use of any tools or screws. The mechanism by which the connection with two cables is established requires a specific part. This part is the so-called terminal block. In the 3076031 terminal block, the ones mounted on the DIN rails have two connection points, as I said, the contact, which has a spring connector, and the insulation, which provides the safety insulation between the two cables. The two connection points are usually addressed with the use of two screws. The screws act on the contact and the connection between the cables is established. The field of application of the 3076031 din rail terminal block is very wideand mainly it depends on the type of current and the voltage level. Specifically, these din-rail terminal blocks are mainly used in industrial machines, alarm systems, automation systems, and railway industries for low and medium voltage applications. The basic working principle of the 3076031 terminal block is rather simple, it is called crimp-on contact. This principle consists of a crimp which, when inserted between the conductor and the terminal block, penetrates the isolator. Thanks to its form, it can press the conductor into the contact resulting in a solid connection, as well as conduct the current. In this terminal block, the connection between two conductors is very simple, it can be done without the use of any tools. Physically, the contact is housed in a steel cage which is slidable and rotatable. It works in two basic steps, firstly locking the two cables together and then riveting them through the contact. The plug-in contacts can be easily removed if they are no longer needed or if the maintenance needs to be performed. In conclusion, the 3076031 din rail terminal blocks are reliable electrical devices designed for low and medium voltage applications in industrial machines, alarm systems, automation systems and railway industries. This model follows a typical crimp-on contact principle to secure two conductors thus allowing an effective, reliable and safe connection.

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