0391001105

Terminal blocks are electrical connectors that provide a secure and reliable mechanical and electrical connection to a variety of terminal points. Commonly used for joining leads in a variety of applications in the industrial, automotive, and general construction sectors, terminal blocks cover a wide range of wire and cable sizes and are classified into different categories based on their size, shape, and function. One such type is a barrier terminal block, also known as a barrier strip.

0391001105 Application Field and Working Principle

Applications

Barrier terminal blocks are typically used in applications that require unhindered access to current. This type of terminal block is designed to be easily wired, as the terminals can be accessed from the sides of the block. Some of its popular applications include motor and appliance control, signal processing, industrial control and instrumentation, power distribution, and lighting systems. Barrier terminal blocks are mostly used in large-scale, complex systems and can provide secure connections for up to 30 conductors.

Working Principle

Barrier terminal blocks typically have four conductors separated by plastic walls that run lengthwise through the block. The conductors are usually color-coded for easy wiring identification and calibration. The conductors are also usually designated for a certain function, such as power carrying and non-power carrying. The design of the conductor allows for the application of an elastic force or torque to be applied to the screw terminal, which causes the conductors to clench the screw and ensure a secure connection. The conductors are then further clamped in place by a clamping device. This ensures a secure fit and prevents any accidental disconnection of the conductors.

To ensure that the conductors are properly connected with each other, insulation displacement connectors (IDC) are typically used. IDC connectors are designed to securely connect conductors to the terminal block and are easy to apply. They are quick, reliable, and inexpensive and help reduce installation times. The IDC connector cuts through the insulation on the conductor and makes contact with metallic surfaces inside the terminal block, thus ensuring a secure mechanical and electrical connection.

Barrier terminal blocks provide secured connections by using a combination of elastic force, clamping devices, and IDC connectors. This ensures that the conductors are properly connected and that the connection remains secure for a long period of time. The secure connection and ease of usage makes them a popular choice for a variety of applications.