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Barrier blocks are a type of terminal blocks and have been used for decades in a wide range of applications. The blocks are designed to provide a secure connection point for multiple wires, eliminating the need to twist and solder wires. They also protect against accidental contact with live connections.

Barrier blocks typically consist of a base and an upper portion, which are made of a thermoplastic material such as ABS or Polypropylene. The base is configured with several slots that can accommodate multiple wire sizes. These slots are most often lined with copper strips to improve contact. The upper portion of the terminal block consists of the connection points where the wires are connected. This upper portion is often referred to as the barrier, since it prevents accidental contact with live connections.

Depending on the application, barrier blocks can be configured with different contact styles, including springs, screws, or pressure contacts. The contact style affects the number of wires that can be connected. Spring-type contacts are the most common, allowing for up to 6 wires to be connected per terminal. Screw-type contacts are usually limited to 2 wires per terminal.

Barrier blocks are most commonly used in industrial machines, where they are used to connect electrical instruments, pumps, and motors. They are also used in the medical field, where they are used to connect medical monitoring equipment. In the automotive industry, barrier blocks are used to connect a variety of components, such as headlights, horns, and instrument clusters.

In addition to their general use as connection points, barrier blocks can also be used for current sensing in industrial applications. They can be configured with shunts, which are small devices that measure current flow. By connecting a shunt to a barrier block, current can be accurately measured and monitored.

Barrier blocks are designed to be easy to install and maintain. The connection points are typically labeled for easy identification, and the blocks can be assembled quickly and securely with no tools. The blocks can also be separated into individual pieces for easy maintenance and replacement.

Barrier blocks are an affordable and reliable connection point for a variety of applications. They are designed to prevent accidental contact with live connections, and to ensure a secure connection point for multiple wires. They are also easy to install and maintain, making them ideal for a wide range of industrial and medical applications.